Entries |
Document | Title | Date |
20080201091 | Sample electrification measurement method and charged particle beam apparatus - The present invention has the object of providing a charged particle beam irradiation method ideal for reducing the focus offset, magnification fluctuation and measurement length error in charged particle beam devices. | 08-21-2008 |
20080208493 | ACTIVITY INFORMATION METER - An activity information meter is provided which is capable of stable transmission between a measuring device and an output device and is highly convenient. In a measuring device | 08-28-2008 |
20080208494 | Method and Device for Determining the Charge and/or Aging State of an Energy Store - In a method and a device for determining a charge/aging state of an energy store, the charge/aging state is able to be determined by a control unit on the basis of an open terminal voltage of the energy store, able to be measured with the aid of a voltage-measuring sensor, in a load-free state. It is provided that the control unit initiates a measurement of a first open terminal voltage at a first instant following the occurrence of the load-free state of the energy store and, based on the measured first open terminal voltage, the control unit, with the aid of a prediction model, specifies a future instant for at least one additional measurement of the open terminal voltage, and at least one additional open terminal voltage is measured at the future instant, and the charge/aging state of the energy store is determined with the aid of the at least one additional open terminal voltage. | 08-28-2008 |
20080234957 | Intelligent Electronic Device and Method Thereof - An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter. | 09-25-2008 |
20080249727 | Systems and Methods for Determining Variations in Voltages Applied to an Integrated Circuit Chip - Systems and methods for determining local voltages provided by a power distribution network to an integrated circuit chip by applying an external voltage to a power distribution network, firing a set of current sources distributed across the chip and measuring local voltages on the chip. The current sources may, for example, comprise a clock tree carrying a free-running clock signal, or multiple individual current source structures. The voltages may be measured, for instance, by units comprising voltage controlled oscillators (VCO's) coupled to counters which determine the corresponding oscillation frequencies and registers which store the resulting oscillation counts. The measured voltages may be used to identify non-uniformities in the voltage applied across the chip, as well as to determine local differences in the resistance of the power distribution network. | 10-09-2008 |
20080275657 | METHOD FOR NONINVASIVE DETERMINATION OF A DISTRIBUTION OF ELECTRICAL CURRENT AND APPARATUS FOR THE SAME - A method of non-invasive determination of electrical current distribution is disclosed. The method utilizes mathematical calculations on data obtained by a probe with non-uniformly wound detection coil. While non-uniform, the coil winding is specific according to a known and determined function, such as a sinusoidal variation. As a further method, the probe may rotate about an area of interest and the data then may be subjected to a Fourier analysis for further refined results. Multiple coils may be used in the probe, each with a different coil function which could include one uniform coil. Also disclosed is a method for making the coils necessary in the practice of the method. | 11-06-2008 |
20080306700 | Photvoltaic solar array health monitor - An integrated photovoltaic (PV) solar array health monitor configured to derive informations relating to the health of a string of PV solar cells. A transmit module | 12-11-2008 |
20080312854 | Method for Measuring Electric Current in a Plurality of Conductors - A method and system for measuring electric current in a plurality (n) of conductors. According to the invention, the method comprises the following steps: an electric current transducer is place substantially opposite to each conductor (I, i=1, . . . , n); a decorrelation matrix ([G]), which is a function of the position of the transducers in relation to the conductors, is constructed; the current (I | 12-18-2008 |
20080312855 | Systems and Methods for Power Hardware in the Loop Testing - A system for power hardware in the loop testing is described. The system includes a power system and a control system, the power system connected to a power converter of a device under test, the control system being in communication with the power system and the power converter. The control system determines the voltage input to the power system by utilizing the voltage output of the power converter, the voltage input determination being made by a control algorithm comprising | 12-18-2008 |
20080312856 | Self-Calibrating Voltage Sensor - A voltage sensor consists of a number of capacitive voltage sensors coupled to test points in an electrical power system. The outputs of the voltage sensors are digitized and processed by a digital processor, which determines a normal value for the monitored AC voltages, and then determines if the monitored AC voltages are acceptable based on variations from the normal value. | 12-18-2008 |
20090006013 | Device and a Method For Estimating Transistor Parameter Variations - A method and a device for estimating parameter variations of transistors that belong to the same circuit. The method includes: providing the first circuit; providing a test circuit adapted to perform a first function and a stacked test circuit adapted to perform a second function that substantially equals the first function; wherein the test circuit, the stacked test circuit and the first circuit are processed under substantially the same processing conditions; determining a relationship between a parameter of the test circuit and a parameter of the stacked test circuit; and estimating parameter variations of transistors that belong to the first circuit in response to the determined relationship. | 01-01-2009 |
20090043521 | TRANSISTOR CIRCUIT WITH ESTIMATING PARAMETER ERROR AND TEMPERATURE SENSING APPARATUS USING THE SAME - A transistor circuit with estimating parameter error and temperature sensing apparatus using the same are provided. The temperature sensing apparatus measures and calculates a parameter error of transistor which is driven by different currents in advance. And the temperature sensing apparatus compensates an error occurred during temperature measurement using the acquired the parameter error so as to obtain an accurate environment temperature. | 02-12-2009 |
20090048794 | Method for Detecting Noise Events in Systems with Time Variable Operating Points - A circuit for detecting noise events in a system with time variable operating points is provided. A first voltage, which is averaged over time, is compared to a second voltage. A signal is generated to instruct circuits within a processor to initiate actions to keep a voltage from drooping further. | 02-19-2009 |
20090063065 | Application of Multiple Voltage Droop Detection and Instruction Throttling Instances with Customized Thresholds Across a Semiconductor Chip - A method and system for applying multiple voltage droop detection and instruction throttling instances with customized thresholds across semiconductor chips. Environmental parameters are detected for various locations on a chip, and timing margins are determined for each location on the chip. An acceptable voltage droop for each location is determined based on the environmental parameters and the timing margins for the corresponding location. A droop threshold is then determined for each location based on the corresponding acceptable voltage droop determined for the corresponding location. | 03-05-2009 |
20090063066 | SYSTEM AND METHOD FOR PRE-DETECTION IN A POWER OVER ETHERNET SYSTEM - A system and method for pre-detection in a power over Ethernet (PoE) system. A power sourcing equipment (PSE) is designed to measure a port voltage upon application of a small current source. A microcontroller controls the current source based on a comparison of the measured port voltage to a threshold voltage. | 03-05-2009 |
20090063067 | Voltage measuring device - A base of a pnp transistor Tr | 03-05-2009 |
20090076750 | INTEGRATED CIRCUIT TESTER INFORMATION PROCESSING SYSTEM - A method for operating an integrated circuit tester information processing system includes measuring current information from test structures for an integrated circuit having dual stress liners; selecting currents from the current information or stored current information; deriving a scaling factor with the currents for a stress contribution based on an active area of a circuit element in the integrated circuit; and correlating the stress contribution with the integrated circuit. | 03-19-2009 |
20090099801 | SYSTEM AND METHOD FOR ON-LINE MONITORING AND BILLING OF POWER CONSUMPTION - The present invention comprises systems and methods related to monitoring of energy usage on a power line. In a preferred embodiment, this system comprises (a) an electronic microprocessor-controlled digital electricity metering device coupled to the power line and comprising a non-volatile non-battery-powered data-storage device, wherein the metering device is capable of interval metering and of receiving a data request and transmitting data in response to the request over the power line; and (b) a data collector (preferably, a transponder) coupled to the metering device via the power line. The data collector is preferably capable of (i) receiving data from and transmitting data to the metering device over the power line, (ii) storing data received from the metering device over the power line, and (iii) receiving data from and transmitting data to a remotely located computer (preferably, a billing computer). | 04-16-2009 |
20090105973 | Noncontact Measurement Method of Currents on Superconductive Wires Connected in Parallel - A noncontact method for measuring currents flowing through superconductive wires connected in parallel is provided. The method includes arranging hall sensors for measuring voltage levels based on magnetic fields generated around the superconductive wires, setting a matrix relation between the measured voltage values, values of currents flowing through the superconductive wires, and a variable matrix having variables defining relations between the voltage values and the current values, applying predetermined current levels to the superconductive wires a number of times and measuring voltage values through the hall sensors, substituting the predetermined current values and the measured voltage values into the matrix relation to calculate the variables of the variable matrix, and substituting the calculated variable matrix and unknown voltage values, measured by the hall sensors when unknown currents flow through the superconductive wires, into the matrix relation to calculate values of the unknown currents flowing through the superconductive wires. | 04-23-2009 |
20090112497 | SYSTEM AND METHOD FOR AUTOMATIC VOLTAGE MEASUREMENTS OF AN ELECTRONIC SIGNAL - A computer-based method for measuring a ringup, a ringdown and a ringback of an electronic signal is provided. The method includes fitting a ringdown fitting curve to approximate a first ringdown data, and fitting a ringup fitting curve to approximate a first ringup data. The method further includes calculating an approximate ringdown value according to the ringdown fitting curve, and calculating an approximate ringup value according to the ringup fitting curve. The approximate ringup and ringdown values are then used to obtain an accurate ringup value and an accurate ringup value respectively. An accurate ringback value is calculated by subtracting the accurate ringup value from the accurate ringdown value. | 04-30-2009 |
20090125257 | COMPRESSOR SENSOR MODULE - A sensor module for a compressor, having an electric motor operating at a first voltage, the sensor module operating at a second voltage, is provided. The sensor module includes a plurality of inputs connected to a plurality of sensors that generate a plurality of operating signals associated with operating conditions of the compressor. A processor is connected to the plurality of inputs and records multiple operating condition measurements from the plurality of operating signals. A communication port is connected to the processor for communicating said operating condition measurements to a control module that controls the compressor. The processor is disposed within an electrical enclosure of the compressor, the electrical enclosure being configured to house electrical terminals for connecting a power supply to the electric motor. The second voltage is less than said first voltage. | 05-14-2009 |
20090132187 | Systems and methods for analysis and design of radiating and scattering objects - Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors. | 05-21-2009 |
20090132188 | Battery charge/discharge current detection apparatus - The battery charge/discharge current detection apparatus has a power supply circuit powered by a battery mounted on a vehicle and configured to detect a charge/discharge current of the battery by use of a current detecting resistor connected between a negative terminal of the battery and a ground. The battery charge/discharge current detection apparatus includes a first function of detecting a voltage across the voltage detecting resistor, a second function of detecting a charge/discharge current of the battery on the basis of the voltage detected by the first function, a third function of detecting presence of an abnormality of the current detecting resistor, and a fourth function of informing an abnormality detected by the third function to the outside. The battery-side negative terminal of the power supply circuit is connected to the negative terminal of the battery. | 05-21-2009 |
20090138221 | MAGNETIC WINDING AND METHOD OF MAKING SAME - The present invention provides an improved magnetic winding and method of calculating desired winding parameters (winding layer thickness, number of winding layers and number of turns per winding layer) for a winding in a magnetic component. The invention may be applied to general boundary conditions in a magnetic winding or component and considers relative phase displacement for sinusoidal and nonsinusoidal winding currents. Ratios of magnetic surface field intensities at corresponding inner and outer boundaries of one or more winding layer(s) are calculated, and considered with relative phase displacement to select magnetic winding configurations having desired or optimal power dissipation. In certain aspects, a normalized loss function f(H,R,B,Φ) is utilized to determine a preferred construction among a plurality of iteratively generated selections. | 05-28-2009 |
20090144002 | METHOD AND APPARATUS FOR DETECTING FAULTS IN A CURRENT SENSING DEVICE - A method and article of manufacture are provided to monitor a sensing system operative to monitor electrical current in a transmission line between an electrical storage device and an electrical machine. The sensing system comprises first and second sensors, operative to monitor first and second ranges of electrical current. The method comprises determining outputs of the first and second sensors are valid, and comparing outputs of the first and second sensors when current is substantially zero. The method comprises comparing magnitudes of the outputs of the first and second sensors when the monitored electrical current, and monitoring polarity of each of the outputs of the first and second sensors. | 06-04-2009 |
20090177422 | FORCED IDLE OF A DATA PROCESSING SYSTEM - Exemplary embodiments of methods and apparatuses to manage a power of a data processing system are described. A constraint parameter of a system operating at a first frequency and a first voltage is monitored. The system is, based on the monitoring of the constraint parameter, forced into an idle state while operating at a second frequency and a second voltage. The idle state prevents instructions from being executed. | 07-09-2009 |
20090187361 | TRANSIENT DETECTION CIRCUIT FOR ESD PROTECTION - A transient detection circuit including a detecting unit, a setting unit, and a memory unit. The transient detection circuit provides an information signal to an external instrument when an electrostatic discharge (ESD) event occurs. The detecting unit is coupled between a first power line and a second power line for detecting the ESD event. The setting unit sets a level of a first node according to the detection result. The memory unit controls the information signal according to the level of the first node. The information signal is at a first level when the ESD event occurs in the first power line. | 07-23-2009 |
20090204349 | MEASUREMENT AND APPARATUS FOR ELECTRICAL MEASUREMENT OF ELECTRICAL DRIVE PARAMETERS FOR A MEMS BASED DISPLAY - Methods and devices to measure threshold voltages of MEMS devices are disclosed. The threshold voltages are based on test voltages which cause the devices to change states. State changes of the device are detected by monitoring integrated current or charge used to drive the test voltages. | 08-13-2009 |
20090216470 | Method and Computer Code for Statistical Process Control for Censored Production Data - A method for monitoring device characteristics of semiconductor integrated circuits. The device characteristics includes censored data and uncensored data. The method includes determining a plurality of minimum breakdown voltages numbered from 1 through N, respectively, for a plurality of lots (e.g., wafer fabrication lots) numbered from 1 through N. Each of the plurality of minimum breakdown voltages is respectively indicative of the plurality of samples through order statistics. One or more of the plurality of samples includes one or more uncensored data points and one or more censored data points. The method includes processing the minimum breakdown voltages, respectively, for the plurality of lots. Each of the minimum breakdown voltages is processed for the respective plurality of lots and is indicative of a population characteristic breakdown voltage numbered from 1 through N for the respective lot numbered from 1 through N. The method includes determining one or more anomalies based upon the processing of the minimum breakdown voltages. The one or more anomalies is associated with one or more processes associated with at least one of the lots. | 08-27-2009 |
20090222224 | Multi-circuit direct current monitor with Modbus serial output - A multi-circuit direct current monitor consists of a plurality of Hall Effect current sensors mounted on a printed circuit board oriented to sense the direct current (DC) flow from power generating devices such as solar arrays, output from the Hall Effect sensors connected to an analog to digital (A/D) converter which in turn is connected to a microprocessor. The multi-circuit direct current monitor continuously monitors instantaneous and average current values for each circuit as well as total instantaneous current and average current for all active circuits. The multi-circuit direct current monitor provides continuous communications via Modbus RTU as well as providing alarm outputs if one or more circuits deviates from the average output by a percentage greater than the user specified threshold for a user-defined period of time to detect failed or underperforming power output devices. | 09-03-2009 |
20090222225 | IDDQ TEST APPARATUS AND TEST METHOD - Multiple non-defective samples of a DUT are selected. A quiescent power supply current (IDDQ) is measured for each of test vectors which are switched, for each of the non-defective samples. Statistical IDDQ values are measured in increments of the test vectors, and first array data is created including identifiers for the test vectors and the statistical IDDQs as elements. The first array data is sorted using the IDDQ value as a key so as to create second array data. The difference in quiescent power supply current is calculated by making difference between adjacent current elements of the second array data, so as to create third array data including the identifiers for the test vectors and the differences of current value as the elements. | 09-03-2009 |
20090240450 | SYSTEM AND METHOD FOR EVALUATING A TEMPERATURE RISE OF A PRINTED CIRCUIT BOARD TRACE - A method for evaluating a temperature rise of a printed circuit board (PCB) trace receives a plurality of attribute parameters of the PCB trace. A temperature rise formula is determined for the PCB trace. The method further calculates the temperature rise by applying the temperature rise formula, and outputs the temperature rise. | 09-24-2009 |
20090281744 | TESTING DEVICES - A testing device for testing a device under test is disclosed. The testing device includes a microprocessor, a measuring module and a computing module. The microprocessor provides a testing signal to the device under test and determines a testing result for the device under test according to at least one signal measurement result. The device under test further generates at least one measuring signal after receiving the testing signal. The measuring module is coupled to the device under test, and measures the at least one measuring signal and generates at least one voltage measurement result and at least one period measurement result. The computing module obtains the at least one voltage measurement result and the at least one period measurement result according to a predetermined manner and generates the at least one signal measurement result. | 11-12-2009 |
20090281745 | Monitoring Plasma Induced Damage During Semiconductor Wafer Processes - A plasma damage detection test structure is disclosed. The plasma damage detection test structure includes a first antenna, a voltage source, a ground reference, a first transistor comprising a first source, a first gate, and a first drain. The plasma damage detection test structure further includes a second transistor comprising a second source, a second gate, and a second drain. The first gate is conductively coupled to said first antenna, said first drain and said second drain are conductively coupled to said voltage source, and said first source and said second source are conductively coupled to said ground reference. In various embodiments multiple antennas may be used. The antennas may be multiple configurations, such as a symmetric arrangement or asymmetric arrangement. In various embodiments, multiple transistors in parallel or cross-couple arrangements may be used. | 11-12-2009 |
20090281746 | METHOD OF PRIORITIZING ANOMALIES IN A BURIED LINEAR CONDUCTOR - A method of prioritizing anomalies in a linear conductor buried under a ground surface includes the steps of obtaining prioritization values for a plurality of anomalies along a linear conductor, and ranking the prioritization values according to magnitude. For each anomaly, a prioritization value is obtained by: locating an anomaly; for each anomaly, determining a current, a depth of cover, and a voltage gradient using spaced voltage probes; using the depth of cover and the voltage gradient, calculating an effective probe spacing of the first and second voltage probes relative to the anomaly on the conductor; and determining the prioritization value of the anomaly based on a linear relationship between the voltage gradient and the product of the current and the effective probe spacing. | 11-12-2009 |
20090287435 | SYSTEM-LEVEL ESD DETECTION CIRCUIT - An ESD detection circuit for detecting a level of an ESD voltage on a power rail is provided. The ESD detection circuit includes a resistive component, a diode unit, and a controller. The resistive component is coupled between a detection node and a ground node corresponding to the power rail. The diode unit is coupled between the power rail and the detection node in a forward direction toward the power rail. The controller, coupled to the detection node, is used for determining the level of the ESD voltage based on the voltage of the detection node and the breakdown voltage of the diode unit. | 11-19-2009 |
20090287436 | DIGITAL MULTIMETER WITH AUTOMATIC MEASUREMENT SELECTION FUNCTION - A digital multimeter comprising measured object input terminal, conversion circuit of fast analog/digital converter, microprocessor, auxiliary program-controlled voltage or current source, potential-divider network, electronic switches, and display. Compared with conventional multimeters, the adoption of fast analog/digital conversion technology as well as method that applies auxiliary power supply at the time of passive analog amount measurement allows for measurement of different responses between input terminals after auxiliary power supply is applied, thus being able to automatically determine the characteristics and size of the measured object. | 11-19-2009 |
20090292488 | ELECTRICAL DISTRIBUTION NETWORKS - Safe operation of electrical power distribution systems necessitates consideration of the fault level in terms of the potential for electrical current flow upon an earth or other fault within the electrical power distribution system. Previously, electrical power systems have been analysed to provide theoretical fault levels values for different zones of an electrical power distribution system based upon a worse case scenario. However, existing electrical loads will in practice provide a more adaptable and higher fault level. By monitoring and identifying an I-V characteristic upon switching electrical load in practical operation an actual default level at particular nodes in a power distribution system is determinable. In such circumstances decisions with regard to the connectablilty of further electrical generators or loads at particular parts and zones of an electrical power distribution system can be quantified by reference to the actual fault level rather than the theoretical worse case scenario level and therefore avoid unnecessary upgrading of transmission equipment or denying access to the electrical power system. | 11-26-2009 |
20090312970 | Current measuring device and processing unit comprising one such device - The current measuring device comprises a first measuring resistor to receive a measurement current, and a first signal amplifier having an input connected to said first measuring resistor and an output to provide a first measurement signal. A second measuring resistor is connected in series with said first measuring resistor, and first voltage limiting means are connected in parallel on the first measuring resistor to branch a first shunt current off when a first limiting voltage is reached on said first measuring resistor. The value of the first measuring resistor is greater than the value of the second measuring resistor A processing unit comprises one such current measuring device. | 12-17-2009 |
20090319210 | VOLTAGE DETECTING APPARATUS AND LINE VOLTAGE DETECTING APPARATUS - A voltage detector that detects an AC voltage in an object includes: an electrode disposed facing the object; a current-to-voltage converter that has a first input set at a reference voltage and a second input connected to the electrode and converts a detection current, which corresponds to a potential difference between the detected AC voltage and the reference voltage on a path including the electrode and a feedback circuit connected to the second input, to a detection signal; an integrating circuit that integrates the detection signal and outputs an integrated signal whose amplitude changes in accordance with the potential difference; an insulating circuit that inputs the detection signal or the integrated signal, and outputs the signal so as to be electrically insulated from the input; and a voltage generating circuit that generates the reference voltage by amplifying a signal based on the integrated signal to reduce the potential difference. | 12-24-2009 |
20090326842 | METHOD AND SYSTEM FOR DETERMINING STATE OF CHARGE OF AN ENERGY DELIVERY DEVICE - A method of determining state of charge of an energy delivery device includes sampling voltage values of the energy delivery device during relaxation of the device. The method further includes regressing an open circuit voltage value and the total overpotential being relaxed. The regression includes a predetermined time constant of relaxation associated with the energy delivery device. One embodiment uses the equation V(t)=OCV−α exp(−t/tau), where V(t) represents the sampled voltage values, t represents times at which each of the voltage values are sampled, OCV represents the open circuit voltage value of the energy delivery device, α represents the overpotential value, and tau represents the time constant of relaxation. The method uses a predetermined profile that relates open circuit voltage of the energy delivery device to state of charge of the device, to determine a particular state of charge corresponding to the regressed open circuit voltage value. | 12-31-2009 |
20100030500 | Regulation of Power Consumption for Application-Specific Integrated Circuits - Provided are systems, methods, and computer program products for regulating power consumption in application-specific integrated circuits (ASICs)—such as, for example, a graphics processing unit. In such a method, a value of a leakage current of an ASIC is received from computer-readable information contained in the ASIC. One or more operational parameters of the ASIC—such as, for example, a supply voltage to the ASIC, a engine speed of the ASIC, and/or a fan speed of a fan used to cool the ASIC—are adjusted based on the value of the leakage current of the ASIC. Optionally, the one or more operational parameters may also be adjusted based on a type of application running on the ASIC. In addition, a supply voltage to the ASIC may (optionally) be shut off if the temperature of the ASIC exceeds a threshold. | 02-04-2010 |
20100049459 | High Dynamic Range Charge Measurements - A charge amplifier for use in radiation sensing includes an amplifier, at least one switch, and at least one capacitor. The switch selectively couples the input of the switch to one of at least two voltages. The capacitor is electrically coupled in series between the input of the amplifier and the input of the switch. The capacitor is electrically coupled to the input of the amplifier without a switch coupled therebetween. A method of measuring charge in radiation sensing includes selectively diverting charge from an input of an amplifier to an input of at least one capacitor by selectively coupling an output of the at least one capacitor to one of at least two voltages. The input of the at least one capacitor is operatively coupled to the input of the amplifier without a switch coupled therebetween. The method also includes calculating a total charge based on a sum of the amplified charge and the diverted charge. | 02-25-2010 |
20100063759 | INFORMATION PROCESSING APPARATUS, VOLTAGE ACCEPTANCE TEST SYSTEM, AND VOLTAGE ACCEPTANCE TEST METHOD - An information processing apparatus including: a test program | 03-11-2010 |
20100076707 | CURRENT SENSOR FOR MEASURING INHOMOGENEITY OF POTENTIAL DISTRIBUTION OF ARRESTER - A current sensor for measuring the inhomogeneity of potential distribution of an arrester having a metal casing, a protection circuit of sampling resistor, a signal conditioning circuit, a signal acquisition circuit, an electro-optical conversion circuit, and a battery module. The signal acquisition circuit includes MSP430F149 micro controller unit having an A/D converter and a serial port. The current sensor is an active sensor, works in a high floating potential, and has a good real time response, high accuracy, low power consumption, good electromagnetic compatibility, and strong anti-interference capability even under harsh electromagnetic conditions. | 03-25-2010 |
20100100344 | USER DESIGNATED MEASUREMENT DISPLAY SYSTEM AND METHOD FOR NDT/NDI WITH HIGH RATE INPUT DATA - A user configured measurement display system and method for a non-destructive testing device and instrument (NDT/NDI) with high input data rate is disclosed. The system and the method provide the means for NDT/NDI instruments display measurement values that satisfies user designated measurement criterion occurring during any measurement time intervals (MTIs). The present disclosure overcomes the shortcomings of conventional ways of picking and displaying measurement values at fixed MTIs, by which the values truly satisfying the measurement criterion that occurs at random MTIs (other than scheduled MTIs) are often skipped. | 04-22-2010 |
20100106438 | Method and apparatus for determining an operating voltage for preventing photovoltaic cell reverse breakdown during power conversion - A method and apparatus for determining an operating voltage lower bound for preventing photovoltaic (PV) cell reverse breakdown during power conversion. The method comprises determining a PV cell operating temperature; computing, at a controller, an operating voltage corresponding to a maximum power point (MPP) based on the PV cell operating temperature; and determining, at the controller, an operating voltage lower bound based on the operating voltage. | 04-29-2010 |
20100114513 | ESTIMATING MINIMUM VOLTAGE OF FUEL CELLS - A method of estimating minimum voltage of fuel cells, and a product using same. | 05-06-2010 |
20100121593 | IN-SITU CHARACTERIZATION OF A SOLID-STATE LIGHT SOURCE - Some embodiments of the present invention provide a system for in-situ characterization of a solid-state light. First, a voltage and a current of the solid-state light source are monitored. Then, the health of the solid-state light source is characterized based on an analysis of the monitored voltage and current. | 05-13-2010 |
20100125429 | AUTOMATIC WORD LINE LEAKAGE MEASUREMENT CIRCUITRY - The present invention is a circuit and method for measuring leakage on the plurality of word lines in a memory device. In one embodiment, a memory device may include a leakage measurement circuit that is coupled to a plurality of word lines of the memory device. The leakage measurement circuit may be operable to generate a reference current and to determine whether a leakage current on one of the plurality of word lines is acceptable relative to the reference current. In another embodiment, a method may include determining whether leakage on one of a plurality of word lines of a memory device is allowable using a circuit in the memory device. | 05-20-2010 |
20100131219 | DIGITAL COMPENSATOR FOR POWER SUPPLY APPLICATIONS - In one embodiment, the system of these teachings includes a mixed signal state estimator, and average inductor current estimator, and duty cycle calculation. | 05-27-2010 |
20100169034 | Apparatus and Method for Measuring Load Current Using a Ground Fault Sensing Transformer - A circuit that includes a single grounded fault sensing transformer coupled to a resonant circuit that produces an output signal used by a microcontroller to determine a load current flowing through at least two conductors passing through the center of the sensing transformer. The microcontroller pings the resonant circuit, causing an impulse disturbance at the output signal, and the microcontroller calculates the inductance component of the resonant circuit based on the frequency of the decaying output signal. The microcontroller calculates the resistive core loss as a function of a known resistance of the resonant circuit, a known capacitance of the resonant circuit, the calculated inductance, and the determined rate of decay of the output signal. The calculated resistive core loss is compared to a table or to a polynomial function that characterizes known resistive core losses with known load currents to determine the load current corresponding to the calculated resistive core loss. | 07-01-2010 |
20100179778 | Embedded monitoring system for batteries - A computer system embedded inside a battery which monitors the state of the battery and transfers this information to an external device. | 07-15-2010 |
20100179779 | DISTRIBUTION SYSTEM ANALYSIS USING METER DATA - A monitoring system includes a first sensor positioned at a first location along a phase conductor line and a second sensor position at a second location along the phase conductor line. The first sensor is configured to generate a first set of synchrophasor data. The second sensor is configured to generate a second set of synchrophasor data. The monitoring system includes a processor configured to receive the first and second sets of synchrophasor data. The processor is further configured to determine a primary side voltage of at least one distribution transformer electrically connected to the phase conductor line based on a secondary side voltage of the at least one distribution transformer. The processor is further configured to determine at least one phase conductor line condition based on the first and second sets of synchrophasor data and the primary side voltage. | 07-15-2010 |
20100179780 | DETERMINATION OF DISTRIBUTION TRANSFORMER VOLTAGES BASED ON METERED LOADS - A method for determining a primary side voltage of a distribution transformer includes determining a first current and a second current flowing through a secondary winding of the transformer at a plurality of time instants based on current meter data generated by a plurality of metered loads. The method may include determining a total current flowing to the plurality of metered loads for each of the plurality of time instants based on the first current and the second current. The method includes receiving a respective meter voltage from each of the plurality of metered loads at each of the plurality of time instants. The method includes determining a secondary side voltage of the transformer at each of the plurality of time instants based on the first, second, and total current and the respective meter voltages. The method includes determining the primary side voltage based on the secondary side voltage. | 07-15-2010 |
20100185406 | WIRELESS REMOTE DETECTOR SYSTEMS AND METHODS - A system for an embodiment includes a sensor device having at least one sensor adapted to monitor at least one parameter associated with a circuit and selectively provide measurement information on the at least one parameter. The at least one sensor may include an electrical sensor adapted to monitor an electrical parameter of the circuit for the sensor device to selectively provide as the measurement information, and wherein the sensor device includes a wireless transceiver within the sensor device and is adapted to transmit the measurement information and receive control information. The system may further include a receiver indicator device having a wireless transceiver and adapted to wirelessly receive the measurement information from the sensor device, provide the control information to the sensor device, and provide an indication based on the measurement information to a user operating the receiver indicator device | 07-22-2010 |
20100198538 | ESTIMATION OF SOLENOID ACTUATOR FORCE PERFORMANCE BY ANALYSIS OF VOLTAGE AND CURRENT SIGNALS - A method of estimating force output of a solenoid assembly including a solenoid coil and a corresponding armature upon which the solenoid coil exerts a magnetic solenoid force is provided. The method includes a step of measuring a plurality of data points of current being drawn by the solenoid coil resulting in a plurality of measured current values, a step of measuring a plurality of data points of voltage being supplied to the solenoid coil resulting in a plurality of measured voltage values, and a step of estimating the magnetic solenoid force exerted upon the corresponding armature based on the pluralities of measured voltage and current values, resulting in an estimated force value. | 08-05-2010 |
20100211342 | Current Generating Device for the Generation and Simultaneous Monitoring of a Measuring Current - The generation and monitoring of a load-independent output current for a level meter, pressure gauge, flowmeter or evaluation device are described. A current that is equal or unequal to the measuring current, but inverted relative thereto, can be generated continuously or within certain time intervals in a switching circuit that is realized independently of the network generating the measuring current. The generated current can be fed into the measuring circuit at a comparison point and added. The compensation principle makes it possible to determine whether the measuring current corresponds to the nominal value, wherein a testing current is fed into the first electric circuit by means of a second switching circuit that contains a second current source. A certain expectancy value of a voltage to be tapped can be calculated in dependence on the testing current being fed in and the nominal value. If the measured voltage deviates from the expectancy value, a deviation of the measuring current from the nominal value is detected and can be output for a user. | 08-19-2010 |
20100223018 | SYSTEMS FOR MONITORING DATA FROM POINTS ALONG VOLTAGE TRANSMISSION LINES - A transceiver module for monitoring a voltage distribution network that includes a voltage carrying power line and a transmitter along the voltage carrying power line for transmitting a first monitoring signal that includes information related to the condition of the voltage distribution network. The transceiver module comprises a receiver located along the voltage carrying power line at a distance from the transmitter, the receiver configured to receive the first monitoring signal; a sensor that monitors a condition of the voltage distribution network and produces a sensor signal that contains information related to the condition being monitored; and a monitor in communication with the receiver and the sensor thereby receiving the first monitoring signal and the sensor signal, the monitor configured to provide a second monitoring signal that includes the information contained in the first monitoring signal and the sensor signal. | 09-02-2010 |
20100235122 | Branch circuit monitor power measurement - In a digital branch circuit monitor, compensation for the phase error is accomplished by selecting a voltage sampled at a time temporally offset from the sampling time of the current by an interval quantifying the phase shift of the secondary current relative to the primary current that is characteristic of a current transformer. | 09-16-2010 |
20100250165 | Control of Delivery of Current Through One or More Discharge Lamps - Control of delivery of current through one or more discharge lamps. Methods include alternately switching on and off switching elements that control a fluorescent lamp, in response to receiving input, until the brightness of the lamp decreases to a threshold. Further, methods include providing control signals at complementary duty cycles to further decrease the brightness and alternating the duty cycles of the signals applied to the filaments of the fluorescent lamp. Methods include digitally comparing voltage signals supplied to a fluorescent lamp and the current drawn by the fluorescent lamp. | 09-30-2010 |
20100250166 | Methods And Devices For Evaluating The Operating Characteristics Of A DBR Laser Diode - In accordance with one embodiment of the present disclosure, a method of evaluating the operating characteristics of a DBR laser diode is provided. According to the method, a diagnostic electrical current is injected into the wavelength tuning section of the DBR laser to generate amplified spontaneous emission of light in the wavelength tuning section. Light emitted from the wavelength tuning section is absorbed by the gain section and photo current generated by the light absorbed in the gain section is measured. The photo current measured in the gain section can be correlated with an evaluation of the operating characteristics of the DBR laser diode. For example, the measured photo current can be correlated with a substandard operating characteristic when it departs from a given photo current metric by more than an acceptable amount. Alternatively, the measured photo current can be correlated with a certified operating characteristic when it departs from the given photo current metric by an acceptable amount. Additional embodiments are disclosed and claimed. | 09-30-2010 |
20100268496 | SENSOR FOR USE IN AUTOMATION TECHNOLOGY AND METHOD FOR TRANSFERRING CONFIGURATION DATA FROM AN EXTERNAL COMPUTER TO A SENSOR - The present invention is directed to a sensor for use in automation technology and a method for transferring configuration data from an external computer to a sensor. The sensor includes: a sensor element for measuring a physical variable; a control/evaluation unit for controlling the sensor element, for processing a measuring signal from the sensor element, and for outputting an output signal to a computer interface; wherein the control/evaluation unit includes a memory for storing at least configuration data and program data, the control/evaluation unit cooperating, in an operating mode, with the computer interface for connecting the sensor to a peripheral unit, and wherein the sensor is supplied with electrical energy by the peripheral unit, in the operating mode; wherein the computer interface is adapted for use in a configuring mode for direct connection of the sensor to an external computer; the sensor is supplied with electrical energy by the external computer via the computer interface, in the configuring mode; and the computer interface is adapted to transfer, in the configuring mode, configuration data differentially between the sensor and the external computer through two wires of a data line at a bandwidth of more than 1 MBit/s. | 10-21-2010 |
20100292943 | State Estimator for Rejecting Noise and Tracking and Updating Bias in Inertial Sensors and Associated Methods - A method and system for tracking and updating bias in an inertial sensor by determining a maximum bias drift and a noise band for a sensor, determining a prior bias value of the sensor, and measuring a current bias value of the sensor. The method and system can further include calculating a bias difference between the prior bias value and the current bias value, and updating the prior bias value with the current bias value if the current bias value is within the noise band and the bias difference is less than or equal to the maximum bias drift. | 11-18-2010 |
20110015884 | SYSTEM AND METHOD FOR AUTOMATIC VOLTAGE RANGE MEASUREMENT - A system for automatic voltage range measurement borne by an electronic device controls a voltage regulator module (VRM) of the electronic device to output a work voltage equaling a work voltage output by the VRM last time added to or subtracted by a voltage difference. When a determination module determines the electronic device has failed to power on or a test of the electronic device for testing hardware of the electronic device has failed after the electronic device is powered on at a work voltage, a limit value of a voltage range boned by the electronic device is ascertained. The limit value is equal to the work voltage this time subtracted or added by the voltage difference. | 01-20-2011 |
20110029266 | PROCESS, VOLTAGE, AND TEMPERATURE SENSOR - An integrated circuit includes a process sensor, a temperature sensor, and a voltage sensor. The process sensor is configured to sense a process parameter indicative of a semiconductor process by which the integrated circuit is formed and, based upon the sensed process parameter, to provide a characterization of the semiconductor process to the output of the process sensor. The temperature sensor is configured to provide an indication of a temperature of the integrated circuit to an output of the temperature sensor and the voltage sensor is configured to provide an indication of a power supply voltage level of the integrated circuit to an output of the voltage sensor. The output of the process sensor is coupled to at least one of the temperature sensor and the voltage sensor to compensate at least one of the indication of the temperature and the indication of the power supply voltage level. | 02-03-2011 |
20110040506 | MODULE FOR MEASURING THE CURRENT FLOWING IN A CONDUCTOR OF A LOW-VOLTAGE DISTRIBUTION BOARD - A module is provided for measuring current flowing in a conductor of a low-voltage distribution board. The module includes a current sensor for detecting the current, a microprocessor circuit for processing an output signal from the current sensor, and a module housing which accommodates the current sensor and the microprocessor circuit. The module housing has an opening for passing the current conductor, an interface with two current connections, and a connection element for releasably fastening the module in the low-voltage distribution board. To enable the module to be simply installed in the low-voltage distribution board and ensure operational reliability of the module, the passage opening extends from a side of the module housing bearing the interface, through the current measuring module, to an opposite side of the module housing, and the module is DC-isolated from the current conductor after it has been installed in the low-voltage distribution board. | 02-17-2011 |
20110046906 | STRUCTURE OF A MAGNETIC-FIELD GRADIENT SENSOR AND PROCESS FOR FABRICATING IT IN INTEGRATED TECHNOLOGY - A process for measuring the gradient or an n-th order derivative, in which n is greater than 1, in a direction z, of a component Hx of a magnetic field, the component being invariant, at least locally, in a direction y. The method includes: a) positioning of N (N>n+1) elementary field sensors, each sensor being offset, relative to the neighboring sensors, along y by a distance Ty and along the z axis by a distance Δz, b) measurement of the field by each of the N sensors, and c) calculation of the desired gradient, or the desired nth-order derivative, as a function of the measurements of the field obtained during b). | 02-24-2011 |
20110093224 | Semiconductor device, semiconductor device testing method, and data processing system - To include one or a plurality of internal signal lines that electrically connects an interface chip to a core chip. The interface chip includes a first circuit that outputs a current to an internal wiring and the core chip includes a second circuit that outputs a current to the first internal signal line. The interface chip includes a determination circuit that has a first input terminal connected to the internal wiring through which the current outputted by the first circuit flows and a second input terminal connected to an end of the first internal signal line in the interface chip, and outputs a voltage according to a potential difference between a voltage of the first input terminal and a voltage of the second input terminal. | 04-21-2011 |
20110112783 | DETECTING DEVICE OF THE CURRENT DISTRIBUTION PROFILE OF A SWITCHING CONVERTER - There is described a detecting device of the distribution profile of current of a switching converter; the converter has an input voltage and is adapted to supply an output current. The device comprises means adapted to convert a signal indicating the output current of the converter into a digital signal comprising p digital samples, being p an integer, processed in p successive time intervals belonging to a time period. The detecting device comprises further means adapted to process each sample of the plurality of samples by comparing each sample with a respective plurality of n reference currents, being n an integer, having a value successively increasing from the first to the last and associated with a plurality of n counters, and by supplying a single i-th counter of said plurality of counters, being i an integer between 1 and n, said supplying occurring if the sample has a higher value than the i-th reference current, but lower than the i+1-th reference current; said further means are adapted to process all p samples. | 05-12-2011 |
20110144933 | VITAL CURRENT SENSOR - A system for sensing current, comprising: a processor; a current sensor coupled to the processor and including a sensor threshold value; and a current generator coupled to the current sensor; wherein the current generator is operable to generate a test current signal defined by a time-varying linear function, the current sensor is operable to be coupled to an external current source, the current sensor is operable to output a sensor output signal based on a detected current to the processor, and the processor is operable to determine a magnitude of the sensor threshold value based on the sensor output signal. | 06-16-2011 |
20110153242 | THERMOCOUPLE MEASUREMENT IN A CURRENT CARRYING PATH - A method of measuring a temperature of a wire and a current flowing through the wire with a thermocouple includes taking a first voltage reading from the thermocouple with the current at a first polarity, and taking a second voltage reading from the thermocouple with the current at a second polarity. The first voltage reading is averaged with the second voltage reading to obtain an average voltage reading, which is referenced to a correlation table to calculate the temperature of the wire. Half of a voltage difference between the first voltage reading and the second voltage reading is divided by the resistance in the wire to calculate the current flowing through the wire. | 06-23-2011 |
20110153243 | ELASTIVE SENSING - An elastive sensor device comprises a set of sensor electrodes and a processing system. The processing system is configured to acquire an elastive measurement by emitting an electrical signal with a first subset of the set of sensor electrodes and receiving the electrical signal with a second subset of the set of sensor electrodes. The processing system is further configured to determine positional information using the elastive measurement. | 06-23-2011 |
20110153244 | Individualized self-monitoring system for transformers in power measurement installations and method of self-monitoring and diagnosis of transformers in power measurement installations - The present invention relates to an individualized self-monitoring system for transformers ( | 06-23-2011 |
20110161026 | SYSTEM AND METHOD FOR MEASURING PIN VOLTAGES OF ELECTRONIC COMPONENTS - A system and method uses a measurement control device and a measurement machine to measure pin voltages of electronic components installed in an electronic device. The measurement control device controls a mechanical arm of the measurement machine to move to the pins of the electronic components according to coordinates of the pins. A voltage probe installed on the end of the mechanical arm can measure voltages of the pins automatically. | 06-30-2011 |
20110184678 | AUTOMATED SYSTEMS AND METHODS FOR CHARACTERIZING LIGHT-EMITTING DEVICES - Automated systems and methods for characterizing light-emitting devices as a function of the electrical and temperature properties of the device are disclosed. The system includes a thermal stack assembly operatively connected to a temperature control system and that operably supports and controls the temperature of the light-emitting device. A power supply provides varying amounts of electrical power to the light-emitting device. A control computer controls the power supply and the temperature control system based on a user-defined electrical and temperature profiles. A light processor optically analyzes light from the light-emitting device as its electrical and temperature properties are varied. The control computer receives and processes electrical signals from the light processor and outputs one or more optical characterizations as a function of electrical and temperature properties of the light-emitting device. | 07-28-2011 |
20110191042 | SYSTEM AND METHODS FOR EXTRACTING CORRELATION CURVES FOR AN ORGANIC LIGHT EMITTING DEVICE - A system and method for determining and applying characterization correlation curves for aging effects on an organic light organic light emitting device (OLED) based pixel is disclosed. A first stress condition is applied to a reference pixel having a drive transistor and an OLED. An output voltage based on a reference current is measured periodically to determine an electrical characteristic of the reference pixel under the first predetermined stress condition. The luminance of the reference pixel is measured periodically to determine an optical characteristic of the reference pixel. A characterization correlation curve corresponding to the first stress condition including the determined electrical and optical characteristic of the reference pixel is stored. Characterization correlation curves for other predetermined stress conditions are also stored based on application of the predetermined stress conditions on other reference pixels. The stress condition of an active pixel is determined and a compensation voltage is determined by correlating the stress condition of the active pixel with the curves of the predetermined stress conditions. | 08-04-2011 |
20110202294 | High voltage impulse test system with a correction algorithm - A correction algorithm is used in order to reduce the systematic measurement error arising from the evaluation device of an impulse voltage test system. It is advantageous to install the high-voltage divider as intermediate circuit. This arrangement requires only one high-voltage connection between the components of the test system and the device under test. The correction function u | 08-18-2011 |
20110202295 | CURRENT MEASURING DEVICE - A current measuring device includes a conductor in which detection target current flows, at least two magnetic sensors that detect change of magnetic field generated when the detection target current flows in the conductor, and a calculation unit that calculates magnitude of the detection target current from an output of the magnetic sensor. At least two magnetic sensors are provided at different distances from the conductor, and the calculation unit acquires distances between the magnetic sensors and the conductor to calculate magnitude of the detection target current using the distances. | 08-18-2011 |
20110208456 | APPARATUS, SYSTEMS AND METHODS FOR LEARNING A CRITICAL VOLTAGE OF A MICROPROCESSOR CONTROL UNIT - A microcontroller-based electronic device and its operating methods are operable to learn a critical voltage value for a microprocessor control unit residing in the microcontroller-based electronic device. The microprocessor control unit receives power from a battery. An exemplary embodiment detects an operating voltage provided to the microprocessor control unit by a supplemental power reservoir after removal of the battery, stores information corresponding to a value of the operating voltage in a nonvolatile memory, repeats the detecting and the saving information as the operating voltage decays in response to a discharge of the supplemental power reservoir, and determines the actual minimum operating voltage for the microprocessor control unit based on a last one of the stored information corresponding to the value of the operating voltage. A learned critical voltage value is based upon the defined actual minimum operating voltage. | 08-25-2011 |
20110218749 | BRANCH CIRCUIT POWER MONITORING APPARATUS & RELATED METHODS - A system for monitoring and reporting power consumption in a branch circuit electrical panel is disclosed. The system uses split core transformers to sense current and voltage within the electrical panel. Each circuit within the electrical panel is sampled periodically. The periodically sampled voltages and currents are transformed into power consumption data. The power consumption data is communicated to a remote server computer. The remote server computer generates reports regarding the power consumption of the various circuits within the electrical panel. A remote computer may be used to access the reports from the server. Note that this abstract is presented to meet requirements of the USPTO. This abstract is not intended to identify key elements of the apparatus and methods disclosed herein or to delineate the scope thereof. | 09-08-2011 |
20110224929 | MONITORING SYSTEM AND INPUT AND OUTPUT DEVICE THEREOF - A monitoring system includes a controller, a number of input and output devices, a number of sensors, and a number of electronic devices. Each input and output device includes a switching circuit, a first input circuit, a second input circuit, and a connector. The connector is connected to a sensor or an electronic device. The controller controls the switching circuit to receive a detecting signal of the sensor or supply power to the electronic device. The first input circuit and the second input circuit are connected between the switching circuit and the controller. | 09-15-2011 |
20110231125 | AIRCRAFT STRUCTURE TESTING DEVICE OF THE WIRE CUTTER TYPE - A detection wire cutter including a conducting wire mechanically secured to a structure that is to be monitored. This wire is electrically powered at one end and at another end feeds back an electrical voltage corresponding to the power supplied, provided that the structure that is to be monitored has not undergone unacceptable mechanical damage. As an improvement, two arrays of wires extending over flat supports in two directions in space are proposed. Each array is powered by a distinct network electrical supply. The two networks extend in layers, with parallel wire portions. The position of a crack does not impede the passage of current between certain terminals, but certain other terminals will no longer receive any current because the crack has broken a network supply general connection between the connection of one wire and that of another. | 09-22-2011 |
20110231126 | METHOD FOR PERFORMING QUALITY CONTROL ON AN ORGANIC LIGHT EMITTING DIODE DEVICE AND A METHOD FOR DETERMINING CURRENT LEAKAGE IN AN OLED SUB-PIXEL - A method is provided for performing quality control on an organic light emitting diode (OLED) pixel comprising three sub-pixels formed in parallel. A method is provided for determining an average current leakage for three sub-pixels of an OLED pixel. The method includes selecting a total luminance level, determining a first current flowing when a first sub-pixel is energized causing the OLED pixel to emit light having ⅓ total luminance. The method includes determining a second current flowing when the first sub-pixel and a second sub-pixel are energized causing the OLED pixel to emit light having a ⅔ total luminance. The method includes calculating average current leakage by multiplying the first current times two forming a first product, subtracting the second current from the first product forming a result, multiplying the result by two forming a second product, and dividing the second product by nine. A computer-readable medium is provided. | 09-22-2011 |
20110238345 | SYSTEM, METHOD AND COMPUTER PROGRAM FOR DETECTING AN ELECTROSTATIC DISCHARGE EVENT | 09-29-2011 |
20110246107 | IMAGING APPARATUS AND METHOD OF PREDICTING THE PHOTORECEPTOR REPLACEMENT INTERVAL - A system and method by which, in photoreceptor devices that use non-contact charging, an impending failure of a photoreceptor can be accurately estimated based on a determined thickness of a charge transport layer in the photoreceptor. The systems and methods may include measuring current delivered to the photoreceptor charge transport layer, measuring voltage of the photoreceptor transport layer, determining a slope of the charge device, determining the thickness of the charge transport layer based on at least one of the measured current value, voltage value, or charge device slope, and determining a photoreceptor replacement interval based on the determined thickness. | 10-06-2011 |
20110246108 | PRESENTATION OF UNBALANCE INFORMATION FOR ELECTRICAL ASSET MANAGEMENT - Disclosed herein is an approach that presents unbalance information obtained from electrical assets in a manner that facilitates management of the electrical assets. In one aspect, a screen view is generated that provides a visual representation of the electrical assets as partitioned into one or more groupings that are each based on a common operational characteristic associated with the electrical assets. The screen view also contains unbalance information that is associated with each of the electrical assets in the one or more groupings and at least one statistical measure that is associated with each of the one or more groupings. | 10-06-2011 |
20110246109 | APPARATUS AND METHOD TO CHARACTERIZE MULTIJUNCTION PHOTOVOLTAIC SOLAR CELLS - An apparatus to electrically and optically characterize a multijunction solar cell. The apparatus can have as many light sources as there are subcells in the multijunction solar cell. Each light source has an optical spectrum that falls within the bandgap energy of a corresponding subcell. Each light source has a controllable intensity level. | 10-06-2011 |
20110246110 | SIMPLE AND STABLE REFERENCE FOR IR-DROP AND SUPPLY NOISE MEASUREMENTS - Apparatus and method for IR-drop and supply noise measurements electronic circuits. A first voltage at a point of interest in the circuit is sampled and stored during a quiescent mode of the circuit the voltage is to be measured in. Subsequently, the circuit is brought in an operating mode and a second voltage is sampled and held at the same point of interest. The first and the second voltage are compared and a corresponding voltage signal is passed to a system output. | 10-06-2011 |
20110251808 | METHOD FOR DETERMINING THE CLOSING TIME OF AN ELECTROMAGNETIC FUEL INJECTOR - A method for determining the closing time of an electromagnetic fuel injector including the steps of applying at a starting time of the injection a positive voltage to the coil of the electromagnetic actuator in order to circulate through the coil an electric current which causes the opening of an injection valve; applying at an ending time of the injection a negative voltage to the coil in order to annul the electric current flowing through the coil; detecting the trend over time of the voltage across the coil after the annulment of the electric current flowing through the coil; identifying a perturbation of the voltage across the coil; and recognizing the closing time of the injector that coincides with the time of the perturbation of the voltage. | 10-13-2011 |
20110257917 | VOLTAGE MANAGEMENT METHODS AND SYSTEMS FOR PERFORMING ANALOG-TO-DIGITAL CONVERSIONS - A voltage management system is provided. The voltage management system includes a computer readable medium. The computer readable medium includes a conversion configuration table that stores configuration information associated with plurality of voltage signals, where the configuration information is associated with an analog-to-digital conversion process; and a voltage information management module that manages the analog-to-digital conversion of the plurality of voltage signals based on the conversion configuration table. | 10-20-2011 |
20110270553 | Apparatus, Sensor Circuit, and Method for Operating an Apparatus or a Sensor Circuit - An apparatus is described, including: a signal processing circuit adapted to process an input signal to obtain an output signal; a sensor element for sensing a predetermined physical quantity, wherein the sensor element is adapted to generate a sensor signal in response to the predetermined physical quantity; wherein the signal processing unit is adapted to process the input signal to obtain the output signal depending on the sensor signal; and wherein the apparatus further comprises an evaluation circuit adapted to evaluate the sensor signal and to generate an indication signal indicating an abnormal operating condition in case the sensor signal does not fulfill a predetermined normal operation criterion. | 11-03-2011 |
20110270554 | SAMPLING RATE ADJUSTMENT SYSTEM AND METHOD - A sampling rate adjustment system includes a detecting circuit and a processor. The detecting circuit detects a frequency of an alternating current (AC) power source and outputs a detecting signal. The processor receives the detecting signal of the detecting circuit and determines whether a difference between the frequency of the AC power source and a sampling rate of a camera is less than a predetermined value. The processor outputs a control signal to the camera and changes the sampling rate of the camera when the difference between the frequency of the AC power source and the sampling rate of the camera is less than the predetermined value. | 11-03-2011 |
20110270555 | PROCESS VARIATION DETECTION APPARATUS AND PROCESS VARIATION DETECTION METHOD - A process variation detection apparatus and a process variation detection method are provided. The process variation detection apparatus includes a process variation detector and a compensation signal generator. The process variation detector includes a first process variation detection component, a second process variation detection component and a current comparator. The channel of the first process variation detection component is a first conductive type, and the channel of the second process variation detection component is a second conductive type, wherein the above-mentioned first conductive type is different from the second conductive type. The current comparator is connected to the first process variation detection component and the second process variation detection component for comparing the current difference between the two components and outputting a current comparison result. The compensation signal generator is connected to the process variation detector, and produces a corresponding compensation signal according to the current comparison result. | 11-03-2011 |
20110270556 | METHOD AND SYSTEM FOR IMPLEMENTING CIRCUIT SIMULATORS - A system and method for performing circuit simulation is described. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided. | 11-03-2011 |
20110295535 | MULTI-CIRCUIT DIRECT CURRENT MONITOR WITH MODBUS SERIAL OUTPUT - A multi-circuit direct current monitor consists of a plurality of Hall Effect current sensors mounted on a printed circuit board oriented to sense the direct current (DC) flow from power generating devices such as solar arrays, output from the Hall Effect sensors connected to an analog to digital (A/D) converter which in turn is connected to a microprocessor. The multi-circuit direct current monitor continuously monitors instantaneous and average current values for each circuit as well as total instantaneous current and average current for all active circuits. The multi-circuit direct current monitor provides continuous communications via Modbus RTU as well as providing alarm outputs if one or more circuits deviates from the average output by a percentage greater than the user specified threshold for a user-defined period of time to detect failed or underperforming power output devices. | 12-01-2011 |
20110313700 | VOLTAGE DETECTION SYSTEM AND CONTROLLING METHOD OF THE SAME - There is a need to solve a possible system malfunction when a power supply voltage decreases steeply. To solve this problem, a control method is provided for a voltage detection system having an interrupt mode and a reset mode. First and second detection levels are configured. When a power supply voltage is higher than the first detection level, a latch circuit is placed in a first state to enable the interrupt mode. When the power supply voltage becomes lower than or equal to the first detection level, an interrupt signal is generated to change the latch circuit from the first state to a second state and enable the reset mode. A system reset is issued when the power supply voltage becomes lower than or equal to the second detection level in the reset mode. | 12-22-2011 |
20120010834 | INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD - Disclosed herein is an information processing device including a voltage measuring unit and a determining unit. The voltage measuring unit measures a voltage across the positive and negative terminals of a set of a plurality of dye-sensitized solar cells connected in series. The determining unit determines the number of the dye-sensitized solar cells not generating electricity according to the amount of voltage drop across the positive and negative terminals from the voltage across the positive and negative terminals in the initial state in which all the dye-sensitized solar cells of the set generate electricity at the voltage measured by the voltage measuring unit. | 01-12-2012 |
20120035874 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack includes a battery cell; a protective circuit for protecting the battery cell; a first analog/digital (A/D) converter for converting a voltage of the battery cell into a digital value and outputting the digital value as a first voltage value; a second A/D converter for converting the voltage of the battery cell into another digital value and outputting the another digital value as a second voltage value; and a comparator for comparing the first voltage value with the second voltage value and determining whether A/D conversion of the battery pack is normal or defective according to the comparison. | 02-09-2012 |
20120072147 | SELF CHECK-TYPE FLAME DETECTOR - A self check-type flame detector includes a casing provided with a monitoring window formed therein. A wavelength generation unit is disposed inside the casing and generates a wavelength in a direction of the monitoring window. A wavelength detection element is disposed inside the casing and detects the wavelength. A comparison unit is provided with a wavelength DB for storing intensity of a reference wavelength and determines whether the monitoring window has been contaminated. A display unit is located outside the casing and displays a state of the monitoring window. A communication unit is disposed inside the casing and configured to receive operation information for the wavelength generation unit, to provide the operation information to the wavelength generation unit, and to transmit the intensity of the wavelength, or a normal signal or a contamination signal of the monitoring window. | 03-22-2012 |
20120072148 | VOLTAGE DROP ANALYSIS APPARATUS, VOLTAGE DROP ANALYSIS METHOD, AND SYSTEM - A current analysis unit of a voltage drop analysis apparatus analyzes currents flowing through the element, and outputs current information concerning currents flowing through the element. A voltage drop analysis unit analyzes voltage drops of the element on the basis of the current information and circuit layout information including information concerning connection of the element, arrangement of the element and power supply interconnection connected to the element, and outputs voltage drop information concerning voltage drops of the element. A corner selection unit selects corner information of the element from a corner information list containing a plurality of pieces of corner information. A voltage drop correction unit which outputs post correction voltage drop information obtained by correcting the voltage drop information on the basis of the voltage drop information, the selected corner information, and the voltage drop correction information prescribing relations between the corner information and correction quantities of the voltage drop information. | 03-22-2012 |
20120078554 | Systems And Methods For Determining A Status Of An Electrical Coupling - An apparatus for interfering with locomotion of a target by conducting a current through a load that includes an ionizable path. The apparatus includes, according to various aspects of the present invention, detectors and a processing circuit that determines a status of an electrical connection with the load. | 03-29-2012 |
20120078555 | Intelligent Electronic Device and Method Thereof - An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter. | 03-29-2012 |
20120078556 | CURRENT MEASUREMENT IN SWITCHED MODE POWER SUPPLY - A method of determining a current in a switched mode power supply. The method comprises: storing values representing at least one pre-calculated matrix A; receiving measured current values; and using the stored values representing the matrix A and the received current values to calculate a respective initial value for each of the coefficients of the line and for each measured current value: calculating an estimated current using the equation of the line and the calculated initial values of the coefficients; determining a difference between the measured current value and the estimated current value to generate a difference value, and comparing the difference value against a threshold and, if the difference value is greater than the threshold, calculating updated values of the coefficients using stored values representing matrix A and difference value. A value for the current in the switched mode power supply is determined using the updated values of the coefficients | 03-29-2012 |
20120089354 | Determining Components of an Electric Service Using Tolerance Ranges - Components of an electric service may be identified by measuring voltage signals relating to the connection of an electrical energy meter connected to the electric service. The voltage signals that may be measured include line to neutral voltages and line to line voltages. The values of the measured line to neutral voltages may be compared to reference information comprising tabulated values that may be tabulated as ratios of nominal service voltages associated with different service types. The values of the measured line to line voltages may be compared to ideal line to line voltages calculated using fixed values from the reference information. | 04-12-2012 |
20120089355 | FAN TESTING SYSTEM - A fan testing system includes a control device testing a fan, and a micro controller outputs pulse control signals to the fan. The control device stores a number of normal rotational voltage and rotational current values under different rotational speeds. The fan adjusts its rotational speed according to the pulse control signals, and outputs rotational speed signals to the micro controller. The micro controller collects rotational voltage signals and rotational current signals of the fan under different rotational speeds, and determines rotational speeds, rotational voltages, and rotational currents of the fan. The control device compares the rotational speeds, rotational voltages and rotational currents from the micro controller with the number of normal rotational voltage and rotational current values, and outputs a test complete signal to the micro controller when the fan rotates under the plurality of normal rotational voltage and rotational current values. | 04-12-2012 |
20120089356 | DISTRIBUTION SYSTEM ANALYSIS USING METER DATA - A monitoring system includes a first sensor positioned at a first location along a phase conductor line and a second sensor position at a second location along the phase conductor line. The first sensor is configured to generate a first set of synchrophasor data. The second sensor is configured to generate a second set of synchrophasor data. The monitoring system includes a processor configured to receive the first and second sets of synchrophasor data. The processor is further configured to determine a primary side voltage of at least one distribution transformer electrically connected to the phase conductor line based on a secondary side voltage of the at least one distribution transformer. The processor is further configured to determine at least one phase conductor line condition based on the first and second sets of synchrophasor data and the primary side voltage. | 04-12-2012 |
20120101756 | CHANNEL, SYSTEM AND METHOD FOR MONITORING VOLTAGES - Described herein are a channel, system and method for monitoring voltages. Typically, the system includes multiple channels, each for sampling one of the voltages. The channels are physically and electrically coupled to a back end board on which is mounted a field programmable gate array (FPGA) that instructs the channels to simultaneously sample the voltages. Optionally, the channel is powered using an power supply that is isolated from the back end board, and transmits information over an electrically isolated connection to the back end board. The channel also includes voltage signal processing circuitry for processing the voltage signal on board the channel, and has stored on it channel identification information composed of at least one of an operating mode of the channel and a serial number of the channel, which can assist with voltage signal processing. | 04-26-2012 |
20120123713 | Control of Delivery of Current Through One or More Discharge Lamps - Method to identify a current drawn by a fluorescent lamp in a circuit. Methods include receiving a voltage supplied to a fluorescent lamp drawing a current in response to the voltage, digitally sampling the voltage at a sampling frequency and associating a first time stamp with a voltage value representing one of a maximum or minimum value in observed voltage, receiving the current after receiving the voltage, digitally sampling the current at the sampling frequency and associating multiple second time stamps with a corresponding multiple current values, identifying a second time stamp, a difference between the first time stamp and the second time stamp being within a threshold, and identifying a current value associated with the second time stamp as the current drawn by the fluorescent lamp. | 05-17-2012 |
20120123714 | MOTOR CURRENT BASED AIR CIRCUIT OBSTRUCTION DETECTION - A program product for determining an obstruction in an air circuit for an environmental control unit having a motor is provided. The program product comprises a program and a non-transitory, computer-readable storage medium. The program is configured to at least facilitate obtaining a load current of the motor, determining a state of the motor, generating a comparison, and determining the obstruction using the load current and the comparison. The comparison is generated by comparing the load current to a first plurality of values if the motor is in a steady state, and by comparing the load current to a second plurality of values if the motor is in a transient state. The non-transitory, computer-readable storage medium stores the program. | 05-17-2012 |
20120136596 | SEMICONDUCTOR DEVICE - An object of the present invention is to sufficiently supply power to three-dimensionally stacked LSI chips and to dispose common through vias in chips of different types. Also, another object is to propose a new test method for power-supply through silicon vias. In order to achieve these objects, a semiconductor device includes: a first circuit block formed on a first semiconductor substrate having first and second sides extending in a first direction and third and fourth sides extending in a second direction intersecting with the first direction; a plurality of signal-line through vias that are connected to the first semiconductor substrate and transmit signals, which are output from the first circuit block, to a second circuit block formed on another second semiconductor substrate; and a plurality of power-supply through vias for supplying power to the first circuit block, and in the semiconductor device, the plurality of power-supply through vias are formed at edges of the first semiconductor substrate along the third and fourth sides and are formed in a plurality of rows in the first direction. Also, each of the circuit blocks has a power consuming mode in which power larger than the power consumption in a normal mode is consumed. | 05-31-2012 |
20120143544 | PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION APPARATUS AND SOLID-STATE IMAGING APPARATUS - A method of detecting a change in current is provided which includes irradiating light on at least one photoelectric conversion material layer, and detecting an increased change in current generated in the photoelectric conversion material layer. A photoelectric conversion apparatus is also provided and includes a photoelectric conversion element including a photoelectric conversion material layer, and a current detection circuit electrically connected to the photoelectric conversion element. In the photoelectric conversion apparatus, the current detection circuit detects an increased change in current generated in the photoelectric conversion material layer. | 06-07-2012 |
20120158331 | Power Input Efficiency Measurement Method - A power input efficiency measurement method includes: providing a power source to supply to a power input system that has a power converter; measuring a current at a primary side of the power converter; measuring a voltage at the primary side of the power converter; and calculating the primary-side current and the primary-side voltage to obtain power efficiency of the power input system. In a preferred embodiment, a current transformer unit is applied to measure the primary-side current while a negative-voltage conversion circuit is applied to measure the primary-side voltage. | 06-21-2012 |
20120166117 | METHOD AND APPARATUS FOR EVALUATING SUPERCONDUCTING TUNNEL JUNCTION DETECTOR NOISE VERSUS BIAS VOLTAGE - A technique for characterizing the noise behavior of a superconducting tunnel junction (STJ) detector as a function of its applied bias voltage V | 06-28-2012 |
20120166118 | Method for Processing a Measured-Value Signal Determined in an Analog Manner, a Resolver System for Implementing the Method and a Method for Determining an Output Current of a Converter - In method for processing a measured-value signal determined in an analog manner and a resolver system for implementing the method, the measured-value signal being supplied to a delta-sigma modulator, which makes a bit stream, particularly a one-bit data stream, available on the output side, in particular, whose moving average corresponds to the measured-value signal, the bit stream being supplied to a first digital filter, which converts the bit stream into a stream of digital intermediate words, that is a multibit data stream, the first digital filter having three serially arranged differentiators, the bit stream being clocked at a clock frequency f | 06-28-2012 |
20120179400 | COMPENSATING FOR HYSTERESIS - A method and apparatus for compensating for hysteresis in a system, the method comprising: determining a required input to the system from an output of the system using the Preisach model with the input of the Preisach model corresponding to the output of the system, and with the output of the Preisach model corresponding to the input of the system. The system may be an adaptive optics system. The input x may be an input voltage of an actuator that deforms a mirror, and the output y may be a value of a displacement of a mirror. | 07-12-2012 |
20120179401 | INTRUSION DETECTION SYSTEM WITH LOCATION CAPABILITY - An intrusion detection and warning system and method capable of pinpointing location of a breaking in attempt wherein the system relies on vibration sensors positioned along a sensor line that is installable on a fence sector, a signal processing unit located on one end of the sensors line and said sector resistor is placed at a second, other end of the sensor line and connected to it. Wherein the system is characterized by an array of parallel formation resistors that are each connected to a vibration sensor. Wherein one end of each of the resistor is connected to the sensors line, the other end is connected to a voltage measurements line. The system defines at said voltage measurements line, a point in which a voltage can be sampled, and wherein in addition, the system includes a sampler that enables sampling the voltage at said define point. | 07-12-2012 |
20120185192 | Scheme for low power measurement - A method of determining a parameter includes providing a sensor that provides a sensor analog voltage. A peak detecting circuit for detecting a peak voltage in the sensor analog voltage is also provided. The sensor analog voltage is provided to the peak detecting circuit, and the peak voltage is detected. A microprocessor is provided in sleep mode and is awakened once the circuit detects the peak voltage. The microprocessor samples and records the peak voltage and the microprocessor goes back to sleep. | 07-19-2012 |
20120191391 | Method And Apparatus For Calculating Insertion Indeces For A Modular Multilevel Converter - A method for calculating insertion indices for a phase leg of a DC to AC modular multilevel converter. Each phase leg includes two serially connected arms, wherein each arm includes a number of submodules, wherein each submodule can be in a bypass state or a voltage insert mode. The insertion index includes data representing the portion of available submodules that should be in the voltage insert mode. The method includes the steps of: calculating a desired arm voltage for an upper arm connected to the upper DC source common bar and a lower arm connected to the lower DC source common bar, obtaining values representing actual total arm voltages in the upper arm and lower arm, respectively, and calculating modulation indices for the upper and lower arm, respectively, using the respective desired arm voltage and the respective value representing the total actual arm voltage. A corresponding apparatus is also presented. | 07-26-2012 |
20120197564 | MOTOR CONDITION INSPECTION METHOD AND MOTOR CHARACTERISTIC INSPECTING DEVICE - A motor characteristic inspecting device is capable of inspecting the condition of a motor installed in an apparatus without removing the motor from the apparatus. The motor characteristic inspecting device includes: a vector variation computing section configured to compute a voltage vector variation amount when a mover of a three-phase motor is moved by an external force; a speed variation detecting section configured to detect a speed variation amount; a constant computing section configured to compute a counter electromotive force constant; and a result display section. Armature windings of the motor installed in the apparatus and the motor characteristic inspecting device are electrically connected with power supply lines disconnected from the motor. An external force is applied to the mover of the motor. The condition of the motor is determined based on the computed result displayed on the result display section of the motor characteristic inspecting device. | 08-02-2012 |
20120197565 | LEAK DETECTION AND LOCATION SYSTEM AND METHOD - A system for detecting and locating a leak through a membrane that includes a detector array, a signal generator, a flexible sheet over-membrane, a conductive felt, and a computer. The detector array includes a boundary wire loop and sensors. The signal generator applies voltage to the boundary wire loop. The conductive felt is applied on top of the detector array. The flexible sheet over-membrane is applied on top of the conductive felt. At least the downward, detector array-facing side of the over-membrane is non-conductive. The computer is in electrical communication with the boundary wire loop, the sensors, and the signal generator. | 08-02-2012 |
20120209552 | INTELLIGENT ELECTRONIC DEVICE WITH ENHANCED POWER QUALITY MONITORING AND COMMUNICATION CAPABILITIES - An intelligent electronic device (IED) has enhanced power quality and communications capabilities. The power meter can perform energy analysis by waveform capture, detect transient on the front end voltage input channels and provide revenue measurements. The power meter splits and distributes the front end input channels into separate circuits for scaling and processing by dedicated processors for specific applications by the power meter. Front end voltage input channels are split and distributed into separate circuits for transient detection, waveform capture analysis and revenue measurement, respectively. Front end current channels are split and distributed into separate circuits for waveform capture analysis and revenue measurement, respectively. | 08-16-2012 |
20120221268 | MEASUREMENT-ONLY TOPOLOGICAL QUANTUM COMPUTATION - Measurement-only topological quantum computation using both projective and interferometrical measurement of topological charge is described. Various issues that would arise when realizing it in fractional quantum Hall systems are discussed. | 08-30-2012 |
20120239326 | SYSTEMS AND METHODS FOR MONITORING OPERATION OF AN LED STRING - Methods and systems for monitoring operation of an LED string. An exemplary system includes an LED string, a circuit that supplies current to the LEDs, a current measuring circuit that measures current through the LEDs, a voltage measuring circuit that measures voltage across the LEDs, and a temperature sensor that measures temperature proximate to the LEDs. A processor calculates a predicted string voltage based on a predefined voltage-current curve, number of LEDs, a predefined temperature coefficient value, the measured string current, a measured junction temperature, a life curve function, a prestored calibration string current value, a prestored calibration string voltage value, a prestored junction calibration temperature and an accumulated time value. The process also calculates an error value based on the predicted string voltage and a measured string voltage and generates an indication that there is a failure in the LED string if the calculated error value is greater than the predefined error limit. | 09-20-2012 |
20120253718 | PRESENTATION OF UNBALANCE INFORMATION FOR ELECTRICAL ASSET MANAGEMENT - Disclosed herein is an approach that presents unbalance information obtained from electrical assets in a manner that facilitates management of the electrical assets. In one aspect, a screen view is generated that provides a visual representation of the electrical assets as partitioned into one or more groupings that are each based on a common operational characteristic associated with the electrical assets. The screen view also contains unbalance information that is associated with each of the electrical assets in the one or more groupings and an indication of whether there is a presence of abnormal operation associated with each of the one or more groupings. | 10-04-2012 |
20120265463 | METHOD AND DEVICE FOR DETERMINING AN INPUT VOLTAGE ON A TRANSFORMING STATION OF A POWER NETWORK - A method and device are provided for determining an input voltage of a transformer of a local network station. The method includes measuring an input current of the transformer, an output current of the transformer, an output voltage of the transformer, and a phase angle between the output current and output voltage. The method also includes determining a translation ratio and an admittance of a cross-member of a p-equivalent circuit diagram of the transformer of the local network station using the measured input current, the measured output current, the measured output voltage and the phase angle between the output current and the output voltage. The method also includes determining the input voltage of the transformer of the local network station based on the determined translation ratio and the determined admittance of the cross-member of the p-equivalent circuit diagram. | 10-18-2012 |
20120271579 | SYSTEM AND METHOD TO CALCULATE RMS CURRENT AND TRUE POWER IN A MULTIDROP SENSOR NETWORK - According to one aspect, embodiments of the invention provide a system for monitoring a plurality of circuit branches coupled to an input line, the system comprising a communication bus, a plurality of sensor circuits, each configured to be coupled to the communication bus and at least one of the plurality of circuit branches, wherein each sensor circuit is further configured to sample current in the at least one of the plurality of circuit branches, a controller configured to be coupled to the communication bus and the input line; wherein the controller is further configured to sample voltage on the input line, and wherein the controller is further configured to synchronize, via the communication bus, current sampling performed by the plurality of sensor circuits with the voltage sampling performed by the controller. | 10-25-2012 |
20120278017 | SAFETY SENSOR AND METHOD FOR DETECTING ABNORMALITY IN SAFETY SENSOR - Disclosed is a safety sensor provided with a plurality of input signal lines for inputting signals for setting. Specifically disclosed is a safety sensor wherein at least one input signal line is provided with a high-level detection circuit and a low-level detection circuit. In an initialization process wherein setting of an operation mode is permitted, a CPU registers in a memory the on-off states of detection signals from the respective detection circuits on condition that the on-off states of detection signals are mutually opposite, and the CPU identifies the connection state of the input signal line on the basis of the on-off states and sets an operation mode corresponding to the connection state. After setting the operation mode is completed, the CPU monitors the detection signals from the respective detection circuits and determines, when at least either of the detection signals comes into a state different from the states registered in the memory, as occurrence of abnormality in the connection state of the input signal line. | 11-01-2012 |
20120283969 | FIBER-OPTIC CURRENT SENSING USING A SENSOR WITH EXCHANGEABLE SUB-MODULES - A fiber-optic current sensor includes a measuring unit having a light source and a light detector, and a sensing head having a sensing fiber wound around a conductor and a retarder connected to the sensing fiber. The scale factor as a function of current of the fiber-optic current sensor is described by the product of two scaling functions fe′ and fs′ for the measuring unit and the sensing head, respectively. The data describing the scaling functions fe′, fs′ is stored in a memory of the measuring unit, while the data describing the scaling function fs′ is also stored in a memory of the sensing head. Providing two such memory devices allows to store the scaling functions fe′ and fs′ separately, thereby turning the control unit as well as the sensor head into easily replaceable modules. | 11-08-2012 |
20120283970 | Method and device for error-compensated current measurement of an electrical accumulator - A method for error-compensated current measurement of an electrical accumulator, including: providing a time window-related estimated charge ascertained by a model-based estimator from operating variables of the accumulator and reflecting the estimated charge that has been withdrawn from the accumulator and supplied to the accumulator within the time window; and detecting the accumulator current supplied to the accumulator and withdrawn from the accumulator during the time window, with a current detection sensor. A zero crossing point in time (estimated charge is essentially zero) and a maximum point in time (the absolute value of the estimated charge essentially has a relative maximum or has a value which is greater than a minimum charge difference) are detected. A current measurement offset error is ascertained at the zero crossing point in time by comparing the estimated charge to the detected accumulator current. The accumulator current is ascertained according to the current measurement offset error, and a current measurement scaling error is ascertained at the maximum point in time by comparing the estimated charge to the detected accumulator current. The ascertained current measurement offset error is subtracted from the comparison result thus obtained, and the accumulator current is compensated for based on the current measurement scaling error. A related device for error-compensated current measurement is also described. | 11-08-2012 |
20120310569 | METHODS AND APPARATUS FOR MEASURING THE FUNDAMENTAL FREQUENCY OF A LINE SIGNAL - The present invention provides methods, apparatus, and systems of measuring frequency. The invention includes sampling a first number of full cycles of a signal at a rate based on a nominal frequency of the signal; converting the samples to digital samples; processing the digital samples to identify a first pair of digital samples with each one disposed on either side of a first zero-crossing and a second pair of digital samples with each one disposed on either side of a last full cycle zero-crossing; interpolating the first pair of digital samples and the second pair of digital samples to determine a position of the first and last zero-crossings relative to each other in time; and calculating a fundamental frequency of the signal based on the first number of full cycles sampled and the relative position of the first and last zero-crossings. Numerous additional aspects are disclosed. | 12-06-2012 |
20130006556 | SOLAR SIMULATOR LIGHT-AMOUNT EVALUATION APPARATUS, SOLAR SIMULATOR LIGHT-AMOUNT EVALUATION METHOD, SOLAR CELL EVALUATION APPARATUS, AND SOLAR CELL EVALUATION METHOD - The provided solar simulator light-intensity evaluation apparatus and method can evaluate the characteristics of a solar cell in an arbitrary place at an arbitrary time and date, using an existing solar simulator, as follows: an estimated spectral irradiance of the natural sunlight is calculated under a measurement condition including a place and/or a time and date where and when the solar cell is measured; and an target value of adjustment and estimated light amount value of the solar simulator are calculated under the measurement condition, on the basis of the estimated spectral irradiance having been calculated, the spectral irradiance of the solar simulator, and solar cell information including a spectral sensitivity of the solar cell. | 01-03-2013 |
20130024143 | FIRST AND SECOND VOLTAGE MEASUREMENTS TO ADJUST A VOLTAGE MEASURER - Examples disclose a processor with a measurement point to receive an input voltage and a voltage measurer to obtain a first voltage measurement. Further, the examples provide the processor with a switch, based on a signal, to enable a second voltage measurement at the measurement point. Additionally, the processor is to adjust the voltage measurer based on a difference between the first and second voltage measurements. | 01-24-2013 |
20130035886 | METHOD AND ARRANGEMENT FOR VOLTAGE MEASUREMENT - A method and an arrangement for voltage measurement with a transformer configuration comprising three single pole voltage transformers having tertiary windings open-delta connected with each other. The arrangement is configured to apply a correction to measured secondary voltages on the basis of one or more parameters of the voltage transformers and/or one or more quantities in a known relation to one or more parameters of the voltage transformers, one or more parameters of a circuit connected to the secondary windings and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the secondary windings, and one or more parameters of a circuit connected to the tertiary windings and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the tertiary windings. | 02-07-2013 |
20130066574 | Method for Determining Characteristics of a Photoconverter Without Contact - The invention relates to a method for determining the maximum open circuit voltage and the power that can be output by a photoconverter material subject to a measurement light intensity, the method including the following steps: measuring the photoluminescent intensity of the material, measuring the absorption rate of the photoconverter material at a second wavelength substantially equal to the photoluminescent wavelength of the photoconverter material, determining the maximum open circuit voltage of the photoconverter material with the measurement light intensity by means of the absorption rate and the photoluminescent intensity measured at substantially the same wavelength; said invention being characterised in that the light source and the photoconverter material are arranged such that the angular distributions of the rays incident on and emitted by the lit surface of the material and collected by the detector are substantially identical. | 03-14-2013 |
20130066575 | VOLTAGE MEASURING CIRCUIT AND METHOD - An average current value that is the average value of current values is found by connecting a detection resistor in parallel to two terminals that are the object of measurement, measuring the current value that flows in the detection resistor, and subjecting the current value to time-quadrature, and further, dividing the current value that follows integration by the integration time. The average current value is converted to a digital signal and sent to an arithmetic means (processor). The arithmetic means calculates the voltage value across the two terminals from the average current value and the resistance value of the detection resistor. | 03-14-2013 |
20130073237 | SUBMERSION DETECTION CIRCUIT AND SUBMERSION DETECTION APPARATUS USING THE SAME - A submersion detection circuit includes a power source unit, a reference resistor connected between the power source unit and a voltage measurement node, a submersion unit configured to include a plurality of submersion measurement resistors connected in parallel to the voltage measurement node. Submersion contact terminals are formed at respective ends of the submersion measurement resistors, and a voltage measurement unit connected to the voltage measurement node and configured to measure voltage divided by the reference resistor and the submersion unit when the submersion contact terminals submerge. | 03-21-2013 |
20130073238 | CURRENT SENSOR AND ATTACHMENT STRUCTURE OF THE SAME - In a current sensor for detecting an electric current flowing in a current path, a magnetic field generating element generates a second magnetic field perpendicular to a first magnetic field generated by the electric current of the current path, and a magnetic sensor generates at least one of a first signal containing a sine value according to an angle defined between the second magnetic field and a synthetic magnetic field composed of the first magnetic field and the second magnetic field and a second signal containing a cosine value according to the angle. A signal processing unit includes a calculation circuit that calculates a tangential value according to the angle using the at least one of the first signal and the second signal, and outputs a sensor signal containing the tangential value. | 03-21-2013 |
20130085697 | METHOD FOR ASSESSING THE RIPPLE OF A SIGNAL - A method for assessing a ripple of a signal, includes: a) determining a first signal value at a determination point in time, b) determining a signal value difference between the first signal value and a signal value determined at a previous determination point in time, c) incrementing an undershoot counter if the signal value difference falls below a first difference threshold value, and incrementing an overshoot counter and resetting the undershoot counter if the signal value difference exceeds a second difference threshold value, and d) determining that no ripple overshoot is present and resetting the overshoot counter if the undershoot counter overshoots an undershoot threshold value, and determining that a ripple overshoot is present if the overshoot counter exceeds an overshoot threshold value and the undershoot counter does not exceed an undershoot threshold value. | 04-04-2013 |
20130090873 | Measuring Capacitance of a Capacitive Sensor with a Microcontroller Having an Analog Output for Driving a Guard Ring - A microcontroller measures capacitance of capacitive sensors having guard rings associated therewith. A guard ring is provided around each capacitive sensor plate and is charged to substantially the same voltage as a voltage on the associated capacitive sensor plate. The guard ring reduces parasitic capacitances of the capacitive sensor plate caused by differences in voltage potentials between the capacitive sensor plate, and adjacent circuit conductors, ground planes and power planes. An analog output is buffered and coupled to an analog input coupled to the capacitive sensor plate, and is used to drive the guard ring voltage to substantially the same voltage as the voltage on the capacitive sensor plate. | 04-11-2013 |
20130103334 | Method for Diagnosing an Operating State of a Contactor and Contactor for Implementing Said Method - A method for diagnosing an operating state of a contractor, which contractor includes
| 04-25-2013 |
20130110432 | PRE-CHARGING FILTERS TO REDUCE SETTLING TIME | 05-02-2013 |
20130110433 | Wireless Multi-Scan Wire Identifier | 05-02-2013 |
20130110434 | METHOD AND ARRANGEMENT FOR DETECTING FREQUENCY AND FUNDAMENTAL WAVE COMPONENT OF THREE-PHASE SIGNAL | 05-02-2013 |
20130116955 | SYSTEMS AND METHODS FOR USE IN MEASURING CURRENT THROUGH A CONDUCTOR - Systems, methods and devices for use in measuring current through a conductor are provided. One example current device includes a first sensor configured to measure a first magnetic flux provided from a conductor and to generate a first signal proportional to the first magnetic flux, and a second sensor configured to measure a second magnetic flux provided from the conductor and to generate a second signal proportional to the second magnetic flux. The second sensor is spaced apart from the first sensor by a predetermined distance. The current device further includes a processor configured to determine, based on the first signal, the second signal and the predetermined distance, a radius between the conductor and at least one of the first sensor and the second sensor. | 05-09-2013 |
20130124122 | STRING MONITOR - A string monitor comprises a modular base unit and one or more sensor modules which may include sensor modules for measuring DC voltage and current. | 05-16-2013 |
20130124123 | Detecting Actuation of Electrical Devices Using Electrical Noise Over a Power Line - Activity sensing in the home has a variety of important applications, including healthcare, entertainment, home automation, energy monitoring and post-occupancy research studies. Many existing systems for detecting occupant activity require large numbers of sensors, invasive vision systems, or extensive installation procedures. Disclosed is an approach that uses a single plug-in sensor to detect a variety of electrical events throughout the home. This sensor detects the electrical noise on residential power lines created by the abrupt switching of electrical devices and the noise created by certain devices while in operation. Machine learning techniques are used to recognize electrically noisy events such as turning on or off a particular light switch, a television set, or an electric stove. The system has been tested to evaluate system performance over time and in different types of houses. Results indicate that various electrical events can be learned and classified with accuracies ranging from 85-90%. | 05-16-2013 |
20130124124 | ATOMIC FLUX MEASUREMENT DEVICE - An atomic flux measurement device for measuring the amount of dissociated atomic flux produced by discharge and emitted from a plasma generation cell into a vacuum camber. The atomic flux measurement device includes a counter electrode body including a pair of first and second sheet-like electrodes that are arranged substantially parallel to each other with a predetermined spacing between them, a direct-current power supply configured to maintain the first sheet-like electrode at a negative potential so that atoms attached to the inner surface of the sheet-like electrode undergo self-ionization and to apply a direct-current voltage between the first and second sheet-like electrodes so that a current flows between the first and second sheet-like electrodes, and a direct-current ammeter configured to measure a current flowing due to electrons emitted by the self-ionization of the dissociated atoms attached to the inner surface of the first sheet-like electrode. | 05-16-2013 |
20130138371 | Dynamic Thermal Mapping - A load calculation device for determining the maximum electrical load that can be applied to an electrical circuit includes determines the temperature differential (ΔT) between a section of the electrical circuit and the ambient air temperature in which the section of the electrical circuit resides. The actual electrical load applied to the electrical circuit is also determined as is the design load of the electrical circuit. The maximum electrical load that can be applied to the electrical circuit is then determined based on the temperature differential and the electrical load applied to the electrical circuit and the circuit designed load. The load calculation device may be applied to an electrical joint and may be used to calculate the maximum temperature differential allowed for a given current to be applied at the electrical joint. This is particularly beneficial in connection with detecting and preventing electrical joint failure. | 05-30-2013 |
20130151184 | Meter Device - A meter arrangement includes a measuring unit. The measuring unit is configured to be coupled to a phase of a power line, to measure at least one parameter of the phase and to provide data representing the measured parameter. A control unit is coupled to the measuring unit and is configured to process the data provided by the measuring unit. A data communication channel is configured to couple the measuring unit and the control unit and provides a path for data transmission between the units. The data communication channel includes a magnetic transfer device. A power channel is configured to couple the measuring unit and the control unit. A path for energy transmission is provided between the measuring and control units. The power channel includes a magnetic transfer device. | 06-13-2013 |
20130151185 | SEMICONDUCTOR DEVICE - A previously calibrated 01 alternating data signal from the driver of an output circuit is input to an input circuit. The voltage amplitude of the input signal is measured. The measured voltage amplitude is compared with the output amplitude of a driver, and an error is stored in a memory as a correction value. A phase and the amount of jitter are measured by using a clock with a specified phase and a specified amount of jitter. The measured phase and amount of jitter are compared with a specified phase and a specified amount of jitter, and an error is stored in a memory as a correction value. In a test, the amplitude and amount of jitter of an input signal from an alien IC are measured, and the measured amplitude and amount of jitter are corrected by a correction value stored in the memory. | 06-13-2013 |
20130158918 | INTELLIGENT ELECTRONIC DEVICE WITH ENHANCED POWER QUALITY MONITORING AND COMMUNICATIONS CAPABILITY - An intelligent electronic device IED has enhanced power quality and communications capabilities. The IED can perform energy analysis by waveform capture, detect transient on the front-end voltage input channels and provide revenue measurements. The IED splits and distributes the front-end input channels into separate circuits for scaling and processing by dedicated processors for specific applications by the IED. Front-end voltage input channels are split and distributed into separate circuits for transient detection, waveform capture analysis and revenue measurement, respectively. Front-end current channels are split and distributed into separate circuits for waveform capture analysis and revenue measurement, respectively. | 06-20-2013 |
20130158919 | PLUG TYPE DETECTION - Techniques for detecting the type of a media plug inserted into a corresponding jack. In an exemplary embodiment, the output of a first power amplifier for driving a media plug terminal, e.g., the right headphone or left headphone, is selectively coupled to a reference voltage. Measurements of the voltage at a microphone terminal of the media plug may be alternately made for the reference voltage being at a first value and a second value. In an embodiment, the first power amplifier output voltage may be varied by opening or closing a switch. Alternatively, the first power amplifier output voltage may be directly set by an input voltage to the first power amplifier. By detecting changes in the voltages measured at the microphone terminal, it may be determined whether the media plug is of a North American type or European type. | 06-20-2013 |
20130158920 | PULSE WIDTH MODULATED VOLTAGE MEASURING CIRCUIT AND METHOD - A voltage measuring circuit includes a rectifier to receive an alternating current (AC) voltage to be measured and to provide a rectified output; a comparator for comparing the rectified output and producing therefrom a square wave having a pulse width indicative of the rectified output exceeding a threshold; a calculation circuit for converting a measurement of the pulse width into a measurement of the voltage and optionally an opto-isolator interconnecting the comparator to the calculation circuit. The rectifier may provide operating power to the comparator and an input side of the opto-isolator, from the AC voltage signal being measured. The remainder of the measuring circuit may powered by a source isolated from the voltage to be measured. | 06-20-2013 |
20130166236 | System and Method for Measuring Current in Hybrid Power Over Ethernet Architecture - Systems and methods of measuring current in a power over Ethernet (PoE) system are provided. The PoE system includes an integrated circuit component having a controller, an internal transistor, a replica transistor, and an external transistor. Current in the system can be indirectly measured by enabling and disabling the transistors in known ways and then measuring the current through the replica transistor. The actual current in the system can be calculated based on the measured currents, thereby allowing for a PoE system that is capable of measuring current without a resistor in series with the external transistor. | 06-27-2013 |
20130166237 | Determining the Fineness of a Ground Material, in Particular an Ore, in a Mill - Methods and arrangements for determining the fineness of a ground material in a mill are provided, wherein the acoustic spectrum of the mill during the grinding process is used for concluding the fineness. The mill comprises a drum in which the ground material is present during the grinding process, said drum being driven by a magnetic drive having at least one magnetic segment during the grinding process, so that a rotating magnetic field generated with the aid of the magnetic drive causes the drum to rotate. In order to determine the acoustic spectrum, a voltage induced in a coil of the magnetic segment is determined at least intermittently. On the basis of a model, using the detected time-dependent induced voltage, conclusions can be drawn about the acoustic spectrum and therefrom about the fineness. | 06-27-2013 |
20130173192 | CURRENT MONITOR FOR INDICATING CONDITION OF ATTACHED ELECTRICAL APPARATUS - A current monitor is described that indicates a condition of attached electrical equipment. The current monitor can determine a predetermined range in which current being withdrawn by the attached electrical apparatus lies. Based on the determined range, corresponding display electronic elements, such as light emitting diodes (LEDs), can be activated. Activated LEDs of a particular color can indicate corresponding conditions of the electrical equipment. The condition of the electrical equipment along with other parameters, such as associated time ranges and other values, can be transmitted via a wired or wireless connection to a software system implemented on a wireless device such that a continuous monitoring and an analysis can be performed remotely. Related apparatus, systems, techniques and articles are also described. | 07-04-2013 |
20130179104 | DC-MOTOR AND FUEL PUMP FAULTS AND BRUSH-WEAR PROGNOSIS - A system and method for determining the health of a DC motor, such as a DC motor on a vehicle. The method includes measuring a current output signal of the DC motor, determining a mean of the measured current signal over a predetermined time period and determining a variance estimation of the mean of the measured current. The method then uses the variance estimation to determine the health of the motor, including an end-of-life prediction of the motor, and uses the mean of the measured current to determine the performance (torque) of the motor. | 07-11-2013 |
20130185009 | HIGH SPEED HIGH DYNAMIC RANGE HIGH ACCURACY MEASUREMENT SYSTEM - A measuring system includes an input that emulates a bandpass filter with no signal reflections. A directional coupler connected to the input passes the filtered input to electrically isolated measuring circuits. Each of the measuring circuits includes an amplifier that amplifies the signal through logarithmic functions. The output of the measuring system is an accurate high dynamic range measurement. | 07-18-2013 |
20130191056 | METHOD OF DETERMINING PWM VALUES FOR LED MODULES - A method for obtaining PWM values for an LED module having n LED chips from various color ranges, wherein n>1, wherein for each LED chip a PWM value for producing a target color value is obtained, is characterized in that a calibration measurement is performed in which the wave lengths (λ | 07-25-2013 |
20130191057 | SYSTEM AND METHOD FOR RAPID DATA COLLECTION FROM PRESSURE SENSORS IN A PRESSURE SENSING SYSTEM - A system and method for the management of data collection from a pressure sensing apparatus. The system allows rapid measurement of pressure exerted upon a surface and may be useful in preventing bed sore development in a bed bound subject. | 07-25-2013 |
20130191058 | INTELLIGENT ANALYSIS METHOD OF LEAKAGE CURRENT DATA FOR CHIP CLASSIFICATION - An intelligent analysis method of leakage current data for chip classification is provided. The analysis method includes steps of: providing a plurality of given patterns to a chip and measuring a plurality of leakage currents of the chip corresponding to the given patterns; finding a minimum value of the leakage currents and deriving an uninfected process parameter according to the minimum value; calculating a plurality of σ-Iddq values based on the uninfected process parameter and the given patterns; and applying a clustering algorithm to the σ-Iddq values to classify whether the chip is a defect-free one. By employing the novel method, it is advantageous of high efficiency and precision without involving any threshold-value determination, visual inspection and/or pattern modification. | 07-25-2013 |
20130197836 | VOLTAGE AND CURRENT MEASURING DEVICE - A voltage and current measuring device includes a plurality of voltage measuring modules, a plurality of one-way current measuring modules, a plurality of two-way current measuring modules, a voltage transformation module, a communication interface module, and a processor. The modules are integrated to provide different ways of measuring voltage and current concurrently, enable peripheral expansion, and facilitate power supply. Hence, the device features integration and versatility, speeds up a measurement process, and cuts production costs. | 08-01-2013 |
20130197837 | Ascertaining the Ballistic Trajectory of an Electromagnetically Driven Armature of a Coil Actuator - A method for determining the movement time curve of an electromagnetically driven armature of an actuator that has a coil may include: (a) applying to the coil a control signal dimensioned such that the armature undergoes only a partial deviation from the armature starting position without reaching an end position defined by a stop, and reaches, the armature starting position again after reaching a turnaround position, wherein the deviation of the armature over time is described at least approximately by a section of a parabola at least between the turnaround position and the starting position, (b) determining the time at which the armature reaches the armature starting position again, (c) determining the speed with which the armature reaches the armature starting position again, and (d) ascertaining the movement time curve of the armature using a mathematical equation that describes the parabola based on the detected time and the detected speed. | 08-01-2013 |
20130204562 | ELECTRONIC DEVICE AND METHOD FOR DETECTING VOLTAGE OF THE ELECTRONIC DEVICE - A method for detecting voltages of an electronic device determines a first number of events in a System Event Log (SEL) of the electronic device, acquires a first voltage of a specific component from the voltage sensor, and records a first time. After a first time interval has elapsed, a second number of the events is determined, and a second voltage of the specific component is acquired. An absolute value of a difference between the second and first voltage of the voltage sensor is calculated when the second number is equal to the first number. Abnormal information of the specific component is outputted when a time difference between the second and first time is less than a second time interval and a number of the absolute value is not less than a predetermined number. | 08-08-2013 |
20130211755 | DETECTION CIRCUIT FOR DETECTING SIGNALS PRODUCED BY BRIDGE CIRCUIT SENSOR - A detection circuit includes an amplifier circuit, a rechargeable unit, a first comparator, a second comparator, a reference voltage providing circuit, a first resistor R1, a second resistor R2, and a processing unit. The amplifier circuit is connected to a bridge circuit sensor and amplifies signals output by the bridge circuit sensor to an output voltage Vo. The reference voltage providing circuit provides a reference voltage Vref1. A charge current of the rechargeable unit is (Vref1−V0)/(R1+R2), and a discharge current is (Vref1−VCC)/R1. The processing unit controls the rechargeable unit to be charged for a time period T1 and to be discharged during a time period T2. The processing unit then calculates the output voltage Vo according to an equation: (Vref1−V0)×T1/(R1+R2)=(Vref1−VCC)×T2/R1, and obtains the signals according to the output voltage Vo. | 08-15-2013 |
20130226487 | METHOD, DEVICE AND TERMINAL FOR IDENTIFYING LCD SCREEN - A method, device and terminal for identifying LCD screens can be automatically compatible with a plurality of LCD screens. The device includes a storage module, a voltage regulation module and an identification module. The storage module stores the driver chip parameters of the LCD screens. The voltage regulation module regulates the output voltages of the LCD screens into a processing range of the identification module according to a fixed voltage when accessing to the LCD screens, so as to acquire a regulated voltage. The identification module stores a corresponding relation between the driver chip parameter and the regulated voltage of the corresponding type of LCD screen, and receives a regulated voltage of the voltage regulation module, and then finds the driver chip parameter corresponding to the regulated voltage according to the regulated voltage and the preset corresponding relation. | 08-29-2013 |
20130226488 | Method And Device For Detecting When A Closing Point Of A Hydraulic Valve Has Been Reached - A method and device are provided for detecting when a closing point of a hydraulic valve has been reached. The valve has a closing element operated by an electric actuator. A predetermined voltage for closing the valve is applied to the actuator. A profile of a current flowing through the actuator is detected. Based on a first increase in the profile corresponding to the valve being at least partially open, a subsequent decrease in the profile corresponding to the closing element carrying out a movement to close the valve, and a second increase in the profile following said decrease in the profile, a local minimum of the detected current is determined between the decrease and the second increase in the profile. Depending on the local minimum of the detected current, a closing point is then determined which corresponds to a time point of the local minimum of the detected current. | 08-29-2013 |
20130245975 | DRAWING DEVICE, DRAWING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - A drawing device includes a memory and a processor coupled to the memory. The processor executes a process including measuring voltages of planes of layers in a laminated circuit board and drawing the voltages of the planes that are measured on a graph having a voltage set on one axis and having a layer set on the other axis. | 09-19-2013 |
20130262003 | CURRENT MEASUREMENT AND COMPARING ASSEMBLY FOR A POWER DISTRIBUTION SYSTEM AND METHOD FOR MEASURING AND COMPARING CURRENT - A current measurement and comparing assembly for a power distribution system includes a solid state contactor module having a control section and a power section, wherein the power section includes at least one solid state switch. Also included is a current sensor disposed in the control section and in operable communication with the at least one solid state switch, wherein the current sensor distributes current data to a switch control configured to control the at least one solid state switch and distributes current data to a current measurement and comparison circuit. | 10-03-2013 |
20130262004 | CAPACITIVE CHARGE MEASUREMENT - A circuit for measuring a capacitive charge comprises a latched comparator and a determination module. The latched comparator comprises an input and an output. The input is coupled with a sensor electrode of a capacitive input device. An inverted version of the output is coupled with a feedback loop. The feedback loop is configured to provide feedback to the input to maintain the input at a predetermined voltage. The feedback is provided in clocked charge quanta steps based on a clock signal. The determination module is coupled with the output and configured to determine a change in capacitance on the sensor electrode by equating output signals from the output with an amount of charge provided to the input to reach the predetermined voltage. | 10-03-2013 |
20130262005 | METHODS, SYSTEMS, ALGORITHMS, SIGNAL PROCESSING MEANS AND DEVICES FOR DETECTING THE TREACLE MASS SLUG CREATED BY A SHOCK WAVE AND DETERMINATION OF THE DYNAMIC PRESSURE, DENSITY, VELOCITY AND CONDUCTIVITY BY ALFEN WAVE IDENTIFICATION - Methods, systems, algorithms, signal processing means and devices for determining the dynamic variables of pressure, density, velocity and conductivity of a generated mass slug, known as the Treacle and formed in a shock discontinuity produced by explosive detonation, deflagration or nature, are provided herein. The parameter determination is based on the discovery of the existence of a Treacle formed in the reaction zone of a shock wave. This verbal noun describes the action of changing the kinetic energy (treadling) of a mass slug immersed and traveling through a magnetic field thereby generating a detectable Alfén wave, which is measured and with an algorithm yields the Treacle dynamic variables. The information is further used to devise methods and systems that utilize the information to create shock shields and high power devices or any other electrically powered transmission disposed within an electrical load. | 10-03-2013 |
20130275068 | DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM - A data processing device includes: a data obtaining section obtaining time series data on a total value of current consumed by a plurality of electric apparatuses; and a parameter estimating section obtaining a model parameter when states of operation of the plurality of electric apparatuses are modeled by a factorial HMM on a basis of the obtained time series data. | 10-17-2013 |
20130282317 | METHOD OF CONTROLLING FAULT CURRENT IN SYSTEM FOR MONITORING AND CONTROLLING POWER SYSTEM - Disclosed is a system for acquiring and controlling information of power energy production, power transmission, and power consumption by storing information of circuit breakers, switches, power generators, power transmission lines, and transformers in the database, and a method of controlling the same. The method includes acquiring data from a remote control system, comparing the acquired data with data that are previously stored in a database, calculating an estimation value of data that are not acquired according to a comparison result, and performing fault current analysis or contingency analysis according to the calculated estimation value to calculate a rated capacity of a circuit breaker. | 10-24-2013 |
20130289909 | ELECTRONIC DEVICE AND METHOD FOR MONITORING PARAMETER VALUES OF THE ELECTRONIC DEVICE - A method of monitoring the working conditions and states of an electronic device sets a first time-interval to read the parameter values of the electronic device. When the electronic device is working normally, the first time-interval is replaced by a second time-interval, which is longer than the first time-interval, to reduce reading frequency, relieve the load on a baseboard management controller (BMC) of the electronic device, and save power. | 10-31-2013 |
20130289910 | Control of Delivery of Current Through One or More Discharge Lamps - A system includes, in at least one aspect, a first circuit configured to be coupled to a load, and a second circuit configured to perform operations including receiving a digital voltage signal representing a voltage supplied to a first circuit, identifying a first time stamp associated with a voltage value representing an extrema in the digital voltage signal, receiving a digital current signal representing a current drawn by the load in response to the supplied voltage, identifying a second time stamp associated with the digital current signal, the second time stamp being within a threshold time of the first time stamp, and identifying a current value associated with the second time stamp as the current drawn by the load. | 10-31-2013 |
20130311120 | BATTERY VOLTAGE DETECTION METHOD AND APPARATUS - An exemplary apparatus for detecting a voltage of a battery on a motherboard includes an embedded controller, a first resistor, and a second resistor. The embedded controller includes an analog to digital (A/D) conversion terminal The A/D conversion terminal is electrically connected to a voltage output terminal of the battery via the first resistor. The A/D conversion terminal is grounded via the second resistor. The A/D conversion terminal detects a voltage value of a connection point between the first resistor and the second resistor. The embedded controller calculates the potential of the battery to determine whether the battery is installed on the motherboard according to the voltage value. | 11-21-2013 |
20130311121 | Method of Calculating Characteristics of Solar Cell and Solar Power Generation System - In order to provide a calculation method for reproducing solar cell characteristics with high accuracy by using data of a short-circuit current, an open-circuit voltage and the maximum power operation point of a solar cell in a temperature and a solar radiation intensity in a standard state, parameter values for determining characteristics in the standard state are calculated by using data of the short-circuit current, the open-circuit voltage and the maximum power operation point of the solar cell in the temperature and the solar radiation intensity in the standard state. Next, temperature coefficients of the open-circuit voltage and the reverse saturation current are calculated by using the calculated parameters, and a short-circuit current, an open-circuit voltage and the maximum power operation point at a given temperature are calculated. | 11-21-2013 |
20130325380 | AC Active Load - An AC active load device for use with a generator and a controller to supply a variable impedance when supplied with an AC waveform. The AC active load device uses a transformer and one or more transistors to generate an average max load impedance greater than 1000 ohms over varying voltage levels. The transistor functions as a dynamically-controlled resistor to the generator when the generator supplies the AC voltage to the transformer. The transistors may be GaN FETs or LDMOSFETs. The transformer steps down a voltage supplied by a generator to a voltage below the threshold voltage of the transistors. A control voltage is supplied to the gate of the transistors and may be controlled by a controller. A voltage and current are outputted to the controller from the AC active load device. The AC active load device may be used to calibrate the generator. | 12-05-2013 |
20130325381 | PROCESS CONTROL LOOP CURRENT VERIFICATION - Some embodiments are directed to a process device comprising a process variable sensor configured to generate an output signal indicative of a sensed process variable; loop current output circuitry configured to control a loop current on a two wire process control loop to a value based on the output signal; loop current measurement circuitry coupled to the process control loop and configured to generate a measured loop current value based on the loop current; and loop current verification circuitry configured to approximate the loop current value based on the output signal and properties of a low pass filter, and generate a diagnostic signal based on a comparison of the approximated loop current value and the measured loop current value. | 12-05-2013 |
20130338951 | ELECTRONIC SYSTEM WITH EMBEDDED SENSORS, METHOD FOR ESTIMATING AN OPERATING PHYSICAL QUANTITY, AND CORRESPONDING COMPUTER PROGRAM - A system comprising: an electronic circuit exhibiting, in operation, a value | 12-19-2013 |
20130338952 | Method and device for detecting state of overcurrent protector for battery - The disclosure discloses a method and device for detecting a state of an overcurrent protector for a battery, wherein a voltage U | 12-19-2013 |
20140025325 | Voltage Level-Shifting - Methods and implementation of low-power power-on control circuits are disclosed. In a particular embodiment, a computer readable tangible medium stores instructions executable by a computer. The instructions may be executable by the computer to determine whether a power detector circuit powered by a first voltage supply has received a test input from at least one voltage level-shifting device coupled to a second voltage supply. | 01-23-2014 |
20140032142 | METHODS AND SYSTEMS FOR DETERMINING VASCULAR BODILY LUMEN INFORMATION AND GUIDING MEDICAL DEVICES - Methods and systems for determining information about a vascular bodily lumen are described. An exemplary method includes generating an electrical signal, delivering the electrical signal to a plurality of excitation elements in the vicinity of the vascular bodily lumen, measuring a responsive electrical signal from a plurality of sensing elements in response to the delivered electrical signal, and determining a lumen dimension. Specific embodiments include generating a multiple frequency electrical signal. Another embodiment includes measuring a plurality of responsive signals at a plurality of frequencies. Still other embodiments include using spatial diversity of the excitation elements. Yet other embodiments use method for calibration and de-embedding of such measurements to determine the lumen dimensions. Diagnostic devices incorporating the method are also disclosed, including guide wires, catheters and implants. The methods and systems described herein are advantageous as they do not include injecting a second fluid for the measurements. | 01-30-2014 |
20140032143 | SYSTEM FREQUENCY MEASUREMENT METHOD, SYNCHROPHASOR MEASUREMENT METHOD AND DEVICE THEREOF - Provided are a system frequency measurement method, synchrophasor measurement method and device. The synchrophasor measurement method comprises: sampling voltage and current signals based on an absolute time reference; removing out-of-band interference in the sampled voltage and current signals; first-resampling at least one of the voltage and current signals with the out-of-band interference being removed based on an estimated system frequency; calculating phasor for the signals obtained from the first resampling and updating the estimated system frequency; for a reporting timing, second-resampling the voltage and current signals with the out-of-band interference being removed based on the updated estimated system frequency; and calculating synchrophasor of the voltage and current signals obtained from the second resampling. The system frequency measurement method, synchrophasor measurement method and device are not only applicable to the stable operation of power systems but also to the dynamic operation thereof, and provide measurement result with high precision. | 01-30-2014 |
20140032144 | LOW-VOLTAGE DISTRIBUTION SYSTEM AND METHOD FOR OPERATING THE SAME - A method for determining a topology information item on a low-voltage electrical distribution system. A group of at least two current measuring devices that are arranged at different points in the low-voltage distribution system is selected, and in each case the current is measured by the current measuring devices so as to form a current measurement value. The current measurement values are added so as to form a current sum taking into consideration the current flow direction. A topology information item is formed which specifies that the current measuring devices electrically isolate a load-free and source-free section of the low-voltage distribution system when the current sum, in terms of absolute value, falls below a predetermined threshold value. | 01-30-2014 |
20140052397 | INRUSH CURRENT MEASURING DEVICE - An inrush current measuring device is disclosed in the present invention. The device includes a current sensing unit, an analog-to-digital converter, a filter, a microcontroller, and a display unit. The inrush current measuring device of the present invention can determine an inrush current by use of at least five sampling current values and does not need to depend on an observation starting point for detecting current value of the inrush current or a continuous detecting time period to obtain accurate measurement of inrush current. | 02-20-2014 |
20140067298 | NONINVASIVE MONITORING OF A PHOTOVOLTAIC SYSTEM - A method for determining a photovoltaic (PV) current from each of a plurality of PV elements arranged in a differential network is provided. The differential network is controlled with a plurality of control signals, where the differential network includes a plurality of inductors, and each control signal has a duty cycle. A plurality of controller parameters is received from the plurality of differential controllers. The PV current for each of the plurality of PV elements is calculated from the plurality of inductor currents and the duty cycle for each control signal. | 03-06-2014 |
20140100804 | Statistical Determination of Power-Circuit Connectivity - A mechanism is provided for statistical determination of power circuit connectivity based on signal detection in a circuit. Signal data from the circuit gathered and a determination is made as to whether a signal of interest is present in the gathered signal data from the circuit using a statistical analysis of the gathered signal data. The statistical analysis comprises using a mean current value and statistical deviation of the current value of the signal data over a predetermined period of time to compute a confidence range. The confidence range is compared to a first threshold and a second threshold. A determination is made that the signal is present in response to the confidence range being above the first threshold. A determination is made that the signal is not present in response to the confidence range being below the second threshold. | 04-10-2014 |
20140100805 | STATUS ESTIMATION APPARATUS, STATUS ESTIMATION METHOD - According to an embodiment, a status estimation apparatus includes detector, calculator, estimator and specifying unit. Detector detects a status change of any of electrical devices based on measurement data of a current flowing in a distribution line supplies power to the devices. Calculator calculates a current waveform change and a power change associated with the status change based on the measurement data. Estimator estimates a candidate originating from the status change based on the current waveform change. Specifying unit specifies a device caused the status change and a type of the status change based on the power change and an estimation result of the candidate. | 04-10-2014 |
20140114596 | RADIATION MEASURING APPARATUS - A waveform analyzing section analyzes the waveform of a detector signal pulse. A calculation section calculates a count rate from the addition-subtraction accumulated value of an up-down counter, and detects noise intrusion, based on the output from the waveform analyzing section. When noise intrusion has been detected, the addition-subtraction accumulated value for the present calculation cycle is replaced with the value for the previous calculation cycle. When the noise intrusion has stopped, the addition-subtraction accumulated value of the up-down counter is set at the value for a calculation cycle just before the noise intrusion, by an accumulated value setting circuit. | 04-24-2014 |
20140129166 | ON-TIME BASED PEAK CURRENT DENSITY RULE AND DESIGN METHOD - A method of computing a peak current density specification (j | 05-08-2014 |
20140142877 | SYSTEMS AND METHODS FOR MONITORING CURRENT VALUES - A current monitoring system is provided. The current monitoring system includes a plurality of transformer assemblies that are configured to generate a plurality of signals representative of current values. A computing device is coupled to the transformer assemblies. The computing device includes a processor that is programmed to analyze the signals to verify the accuracy of the current values associated with the signals. The processor is also programmed to select at least one verified pair of signals from the signals to calculate at least one value for at least one control variable. | 05-22-2014 |
20140142878 | DENSITY FUNCTION CENTRIC SIGNAL PROCESSING - A circuit for direct current (DC) offset estimation comprises a quantile value circuit and a signal processor. The quantile value circuit determines a plurality of quantile values of an input signal and includes a plurality of quantile filters. Each quantile filter includes a comparator, a level shifter, a monotonic transfer function component, and a latched integrator. The comparator compares the input signal and a quantile value. The level shifter shifts the output of the comparator. The monotonic transfer function component determines the magnitude of the shifted signal and provide a transfer function signal. The latched integrator suppresses transient characteristics of the transfer function signal and provide the quantile value. The signal processor is configured to calculate a weighted average of the quantile values to yield a DC offset estimate. | 05-22-2014 |
20140142879 | DIFFERENTIAL VOLTAGE MEASUREMENT - Measurement system and procedure suitable for measuring a voltage differential, the system comprising a measurement unit ( | 05-22-2014 |
20140156210 | Control Voltage Signal Synthesis System and Method - Multiple positions within a mechanical system are measured with a plurality of sensors including at least one 4-wire and at least one 5-wire sensor. The 5-wire sensor has two output voltage signals sent to a signal conversion processor, and the 4-wire sensor also sends a signal. A sum is created of the two voltage signals from the 5-wire sensor. An excitation voltage supply supplies a common excitation voltage to both sensors. Feedback of the excitation voltage is measured by the signal conversion processor. The excitation voltage feedback is utilized to ratio-metrically correct a position feedback signal from the 4-wire sensor at the signal conversion processor. The signal conversion processor is able to synthesize a signal indicative of the excitation voltage from the two voltage signals sent from the 5-wire sensor in the event the excitation voltage feedback is not received at the signal conversion processor. | 06-05-2014 |
20140163911 | METHOD FOR OPERATING A HALL SENSOR ARRANGEMENT AND HALL SENSOR ARRANGEMENT - According to a method for operating a Hall sensor assembly, at least two values (I | 06-12-2014 |
20140188416 | CHARGE INTEGRATION BASED ELECTROSTATIC CLAMP HEALTH MONITOR - An electrostatic clamp monitoring system is provided having an electrostatic clamp configured to selectively electrostatically clamp a workpiece to a clamping surface associated therewith via one or more electrodes. A power supply is electrically coupled to the electrostatic clamp, wherein the power supply is configured to selectively supply a clamping voltage to the one or more electrodes of the electrostatic clamp. A data acquisition system is coupled to the power supply and configured to measure a current supplied to the one or more electrodes, therein defining a measured current. A controller integrates the measured current over time, therein determining a charge value associated a clamping force between the workpiece and electrostatic clamp. A memory stores the charge value associated with the clamping force over a plurality of clamping cycles, therein defining a plurality of charge values, and the controller determines a clamping capability of the electrostatic clamp based on a comparison of a currently determined charge value to the plurality of charge values. | 07-03-2014 |
20140195182 | NOVEL DIGITAL SIGNAL PROCESSING METHOD FOR MEASUREMENT OF AC VOLTAGE WITH POWER CONVERTERS AT LIGHT LOAD OPERATION - An observation is made that the peak voltage value for a rectified AC voltage signal is substantially the same from cycle to cycle. Using this observation, a method of measuring an AC voltage is used to determine a more accurate RMS voltage value under light load conditions. The method includes rectifying the AC voltage signal to form a rectified signal, sampling the rectified signal to obtain a set of sampled values for each half-cycle of the AC voltage signal, searching the sampled values for each half-cycle to determine a local minimum value for each half-cycle, searching the sampled values following the local minimum value to determine a local maximum value for each half-cycle, and calculating a root mean square value from the local maximum value for each half-cycle thereby determining the root mean square value for each half-cycle of the AC voltage signal. | 07-10-2014 |
20140214350 | Using Modeling to Determine Wafer Bias Associated With A Plasma System - Systems and methods for determining wafer bias are described. One of the methods includes detecting output of a generator to identify a generator output complex voltage and current (V&I). The generator is coupled to an impedance matching circuit and the impedance matching circuit is coupled to an electrostatic chuck (ESC). The method further includes determining from the generator output complex V&I a projected complex V&I at a point along a path between an output of a model of the impedance matching circuit and a model of the ESC. The operation of determining of the projected complex V&I is performed using a model for at least part of the path. The method includes applying the projected complex V&I as an input to a function to map the projected complex V&I to a wafer bias value at the ESC model. | 07-31-2014 |
20140244194 | TEST APPARATUS OF DISPLAY, METHOD AND COMPUTER READABLE MEDIUM - A test apparatus for a display includes an interface transmitting characteristic information including a resolution of the display unit and each equivalent model of a plurality of pixels, a reference voltage model including a plurality of reference voltages respectively corresponding to a plurality of pixels included in a unit region of the display unit, and pixel information including a position of a plurality of pixels to be tested among a plurality of pixels, a pixel model generator that schematizes a plurality of pixels into a plurality of test pixels and at least one equivalent load pixel according to the characteristic information and the pixel information to generate a pixel model, and a voltage mapper that maps the reference voltage model to the pixel model to calculate test voltages respectively corresponding to a plurality of test pixels and the equivalent load pixel. | 08-28-2014 |
20140278171 | Frequency Adaptive Line Voltage Filters - A method for reducing noise from an electrical signal includes: obtaining a sampling rate for the electrical signal. The sampling rate is a rate at which voltage readings are obtained for the electrical signal. Each voltage reading comprises a data component and a noise component. A time interval is determined from the sampling rate. A number of voltage readings are obtained. Each voltage reading is obtained one time interval of time after a previous voltage reading is obtained. At each time interval: a voltage reading is obtained; the obtained voltage reading is applied to a low-pass filter; a noise value is obtained from the low-pass filter; and the noise value is subtracted from the voltage reading. | 09-18-2014 |
20140324371 | PREDICTING A NETWORK PERFORMANCE MEASUREMENT FROM HISTORIC AND RECENT DATA - Prediction techniques are presented for predicting a current value of a performance measurement using historic performance measurement data and recent performance measurement data, which may not reflect the current conditions. A daily trend in a series of performance measurements is obtained. The daily trend comprises a set of data points at different times of day, wherein each data point represents an average value of the performance measurements at a corresponding time of day over a plurality of days. One or more recent performance measurements over a recent time interval are also obtained. A current value of the performance measurements is predicted, based on the daily trend and the recent performance measurements. | 10-30-2014 |
20140343878 | Method and Apparatus for Power Quality and Synchrophasor Monitoring on Power Lines - A system and method for estimating the magnitude and phase of magnetic and electrical currents in a power line comprising at least one processor operating to create a model of the power line and derive expected complex magnetic and electric-field values; at least one memory; at least one sensor positioned proximate to the at least one power line for sensing and providing measurements of the magnetic and electric fields of the at least one power line; the at least one processor operating to compute a set of complex magnetic and electric field values based upon the measurements provided by the at least one sensor and to estimate parameters related to the complex voltage and/or current of the at least one power line based upon the measured field values and the set of expected complex electric current and voltage values derived from a model of at least one power line. | 11-20-2014 |
20140343879 | Monitoring Voltage Stability of a Transmission Corridor - A voltage stability monitoring apparatus monitors the voltage stability of a transmission corridor through which power flows between different parts of a power system. The apparatus monitors an equivalent load impedance at an interface between the transmission corridor and a part of the power system designated as generating the power. This equivalent load impedance at the interface comprises a ratio of a voltage phasor at the interface to a current phasor at the interface. The apparatus tracks a Thevenin equivalent voltage and impedance of the designated part by separately updating that voltage and impedance. Notably, the apparatus updates the imaginary part of the Thevenin equivalent voltage to reflect the magnitude of any changes in the voltage phasor that are associated with large variations in the magnitude of the equivalent load impedance at the interface. The apparatus computes an index indicating the voltage stability as a function of this tracked Thevenin equivalent voltage and impedance. | 11-20-2014 |
20140350878 | VOLTAGE MEASURING DEVICE - Provided is a voltage measuring device capable of increasing the degree of freedom in the design of an RC filter (low-pass filter) while suppressing the withstand voltage limit of a capacitor. The voltage measuring device comprises: at least one divided capacitor group having a plurality of divided capacitors connected in series through measurement nodes and having one end connected to a reference node and the other end connected to a non-reference node; and at least one non-divided capacitor having one end connected to the reference node and the other end connected to a non-reference node to which the divided capacitors are not connected. | 11-27-2014 |
20140358461 | SYSTEM AND METHOD FOR ESTIMATING CURRENT IN DC-DC CONVERTER - A system and method for estimating current in a DC-DC converter are provided that estimate an output current of the DC-DC converter more accurately by correcting an output voltage of a CT sensor at an input terminal as a part of a current map and an efficiency map. The current map and the efficiency map are configured in a 2D form, since the output voltage of the CT sensor varies depending on the PWM duty. | 12-04-2014 |
20140365151 | SYSTEM AND METHOD FOR ESTIMATING OUTPUT CURRENT OF DC-DC CONVERTER - A DC-DC converter and a method for estimating output current of a DC-DC converter are provided. The method includes measuring, by a controller, input voltage and output voltage of the DC-DC converter and measuring output voltage of a current transformer (CT) included in the DC-DC converter. In addition, the method includes compensating, by the controller, for the output voltage based on the relationship between the measured output voltage and CT output voltage and compensating for the input voltage by measuring the input current of the DC-DC converter based on the output current of the DC-DC converter into the CT output voltage converted through the current transformer and using an output current map composed of the output voltage and the measured CT voltage. In addition, the output current is estimated using the compensated output voltage and input voltage. | 12-11-2014 |
20150066408 | TIME FRAME MEASURING METHOD WITH CALIBRATION IN THE FREQUENCY RANGE - A method for determining electric voltage u(t) and/or electric current i(t) of an RF signal in the time domain in a calibration plane, wherein by at least one directional coupler having two outputs and one signal input a first component of a first RF signal that runs from the signal input in the direction of the calibration plane, and a second component of a second RF signal that runs from the calibration plane in the direction of the signal input is decoupled. For a two-port error of the directional coupler, the error terms e | 03-05-2015 |
20150088444 | Monitoring Synchronization of a Motor Using Stator Current Measurements - Monitoring synchronization of an electric motor using current signals from power supplied to the motor is disclosed herein. The current signals may be used to calculate representative current values which may be used to calculate a rotational frequency of the rotor of the motor. The rotational frequency may be used to determine synchronization, such as slip. Monitoring may be during startup of a synchronous motor in induction mode. Upon reaching a predetermined synchronization threshold, the motor may be configured from induction mode to synchronous mode. | 03-26-2015 |
20150106045 | MEASUREMENT METHOD, MEASUREMENT DEVICE, AND MEASUREMENT PROGRAM - There is provided a measurement method for an electrical characteristic, the measurement method including applying a voltage to an element, and determining stability of a current value at the applied voltage. | 04-16-2015 |
20150112621 | VOLTAGE DETECTION DEVICE FOR TRANSFORMING APPARATUS - In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage E | 04-23-2015 |
20150112622 | OPEN-CIRCUIT VOLTAGE ESTIMATION DEVICE, POWER STORAGE APPARATUS, AND OPEN-CIRCUIT VOLTAGE ESTIMATION METHOD - The present disclosure provides an open-circuit voltage estimation device that estimates a high-precision open-circuit voltage value, a power storage apparatus, and an open-circuit voltage estimation method. The open-circuit voltage estimation device includes: an open-circuit voltage calculator that calculates an open-circuit voltage value of a secondary cell; a polarization voltage estimator that estimates a component having a relatively large time constant among polarization voltage components of the secondary cell; and an open-circuit voltage corrector that corrects the open-circuit voltage value calculated by the open-circuit voltage calculator with the component having the relatively large time constant estimated by the polarization voltage estimator. | 04-23-2015 |
20150120227 | FACILITY SELECTION SUPPORTING METHOD AND FACILITY SELECTION SUPPORTING DEVICE - A facility selection supporting device calculates a total current value of consumers located in and after a certain power supply section on the way from a distribution substation to a particular consumer and outputs a recommended distribution facility for the power supply section based on the calculated total current value. | 04-30-2015 |
20150142353 | MONITORING A LINEAR VARIABLE DIFFERENTIAL TRANSFORMER SENSOR - A method for monitoring an LVDT sensor including two secondary circuits, the method including: calculating the difference between voltages at terminals of one of the secondary circuits at a given instant and at a previous instant; calculating the difference between voltages at terminals of the other one of the secondary circuits at the given instant and at the previous instant; calculating the sum of the two differences calculated; modifying an indicator according to a distance to zero of the previously calculated sum; and comparing the indicator with at least one predetermined threshold. | 05-21-2015 |
20150142354 | ELECTRIC POWER CALCULATION SYSTEM, ELECTRIC CABINET COMPRISING ONE SUCH SYSTEM, ASSOCIATED TRANSFORMER SUBSTATION AND CALCULATION METHOD - This system comprises a first device comprising a member for measuring voltage of a primary conductor, means for sampling the measured voltage, means for transmitting a first message, and means for determining a set of variable values representative of the voltage, based on the voltage measured during a given transmission period; at least one second device having a current sensor for determining intensity in a secondary conductor connected to the primary conductor, means for sampling the measured intensity; and a member for calculating said energy, including means for receiving the first message and being configured for calculating an energy during the given transmission period on the basis of said data set and intensity samples associated with the given transmission period. | 05-21-2015 |
20150149102 | ONLINE MONITORING CIRCUIT AND METHOD OF THE SERIES COMPENSATION SPARK GAP DIVIDER RETURN CIRCUIT - The present invention provides an online monitoring circuit of the series compensation spark gap divider return circuit, said series compensation spark gap divider return circuit includes voltage equalization link and the voltage sampling link; Said voltage link includes the capacitor C which series said voltage equalization link; Said online monitoring circuit includes the voltage sampling input module, series compensation current input module and the compare module; Said sampling voltage input module after amplified the voltage of the two ends of the series capacitor C converts it into direct current signal U | 05-28-2015 |
20150309085 | CALCULATING LINE-TO-NEUTRAL VOLTAGES WITHOUT A CONNECTION TO A SYSTEM NEUTRAL OR EARTH GROUND - A method measures three line-to-line voltages and constructs a phasor triangle with the voltages phasors. V | 10-29-2015 |
20150331019 | CURRENT MEASUREMENT DEVICE - A current measurement device includes: an integration circuit which integrates the current to be measured, and outputs an integral signal; a low range current measurement unit which receives the integral signal output from the integration circuit and calculates a low range current measurement value that is proportional to the rate of change of the integral signal; a high range current measurement unit which calculates a high range current measurement value based on a pulse signal corresponding to the cycle of the integral signal; a pumping circuit which, using the pulse signal, discharges a charge stored in the integration circuit; and a measurement value determination unit which determines a measurement value of the current to be measured based on the low range current measurement value calculated by the low range current measurement unit, and the high range current measurement value calculated by the high range current measurement unit. | 11-19-2015 |
20150346247 | DIGITAL CURRENT SENSOR FOR ON-DIE SWITCHING VOLTAGE REGULATOR - Described is an apparatus which comprises: an output node; a capacitor; an inductor having a first terminal coupled to the output node, and a second terminal coupled to the capacitor; a bridge to receive an input power supply and to generate a switching voltage signal at the output node; and a current sensor to determine slope of the switching voltage signal on the output node. | 12-03-2015 |
20150355243 | LANGMUIR PROBE - A method of determining payload potential may include the steps of receiving data on a first bias voltage and a resulting first collected current of a first needle of a multi-needle Langmuir probe, receiving data on a second bias voltage and a resulting second collected current of a second needle of the multi-needle Langmuir probe, assigning a value for the electron temperature in which the multi-needle Langmuir probe was operating, and using the current and voltage data, the assigned electron temperature value and Langmuir probe theory to calculate the platform potential of the multi-needle Langmuir probe. | 12-10-2015 |
20160003888 | Method of characterizing a device - A method of characterizing a device may be used to determine a metal work function of the device according to a threshold voltage, a body effect, and an oxide capacitance of the device. The threshold voltage may be determined according to a current to voltage curve. The oxide capacitance may be determined according to a capacitor to voltage curve. | 01-07-2016 |
20160033568 | ELECTRONIC DEVICE AND DETECTION METHOD THEREOF - An electronic device and a detection method thereof for detecting an appliance are provided herein. The detection method includes: selectively providing a first test load to connect with the appliance or providing a first test signal to the appliance; detecting a first voltage/current value of the appliance when the appliance is connected with the first test load or when the appliance receives the first test signal; generating a first voltage/current signature data according to the first voltage/current value; and identifying a type of the appliance according to the first voltage/current signature data. | 02-04-2016 |
20160054362 | SEMICONDUCTOR DEVICE AND METHOD FOR MEASURING CURRENT OF SEMICONDUCTOR DEVICE - A current measurement method with which an extremely low current can be measured is provided. In the method, a charge written to a first terminal of a capacitor through a transistor under test is retained, data on the correspondence between a potential V of the first terminal of the capacitor and Time t is generated, and a stretched exponential function represented by Formula (a1) is fitted to the data to determine parameters of Formula (a1). The derivative of Formula (a1) with respect to time gives a stretched exponential function describing an off-state current of the transistor under test. The potential of the first terminal of the capacitor is measured using an on-state current of a transistor whose gate is connected to the first terminal of the capacitor. | 02-25-2016 |
20160054372 | REAL TIME, AUTOMATIC DIAGNOSTIC SYSTEM AND METHOD FOR ELECTRIC NETWORKS - A system and method for performing real-time and automatic diagnostics of failures in equipment located in an electrical grid, such as, for example, transmission and generation grids of electric power, using generic rules that consist in correlating events, especially applied in electrical grid with constant topology changes. | 02-25-2016 |
20160109491 | GRID TOPOLOGY MAPPING WITH VOLTAGE DATA - A power line configuration or topology may be determined by identifying metering nodes that have time-stamped voltage values that correlate with voltage values measured at a transformer or other metering nodes at substantially the same time. A correlation between the time-stamped voltage values may be calculated by, in some examples, comparing a difference of a first time-stamped voltage value of a meter and a second time-stamped voltage value of a transformer or the second metering node to a predetermined threshold. If the difference is below the threshold, the metering node may be determined to be connected to the transformer or second metering node by a power distribution line. | 04-21-2016 |
20160116508 | SYSTEM AND METHOD TO CHARACTERIZE AND IDENTIFY OPERATING MODES OF ELECTRIC LOADS - A system characterizes and identifies one of a plurality of different operating modes of a number of electric loads. The system includes a processor; a voltage sensor providing a voltage signal for one of the electric loads to the processor; a current sensor providing a current signal for the one electric load to the processor; and a routine executed by the processor and structured to characterize the different operating modes using steady state and voltage-current trajectory features determined from the voltage and current signals, and to identify a particular one of the different operating modes based on a plurality of operating mode membership functions of the steady state and voltage-current trajectory features. | 04-28-2016 |
20160139186 | NON-CONTACT TYPE VOLTAGE SENSOR FOR DUAL-WIRE POWER CABLE AND METHOD FOR COMPENSATING INSTALLTION POSITION VARIATION THEREOF - A voltage sensor and the method for compensating installation position variation thereof are disclosed. The voltage sensor may comprise a casing, two substrates, a plurality of voltage sensing units and an iterative operation unit. One side of the casing may include two grooves. The substrates may be respectively disposed in the grooves, and an accommodating space is formed between the substrates. The voltage sensing units may be disposed on the substrates to measure a plurality voltage parameters of a dual-wire power cable disposed in the accommodating space. The iterative operation unit can be disposed in the casing and connected to the voltage sensing units, wherein the iterative operation unit can perform an iterative operation process according to a compensation database and the voltage parameters for compensating the horizontal and vertical displacements occurring when installing the voltage sensor on the cable, and calculate the estimated input voltage of the cable. | 05-19-2016 |
20160173029 | NonInvasive Monitoring of a Photovoltaic System | 06-16-2016 |
20160178681 | Method and System for Determining the Thermal Power Line Rating | 06-23-2016 |
20160187416 | APPARATUS FOR TESTING ELECTRONIC DEVICES - An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer. | 06-30-2016 |
20160195574 | METHOD AND SYSTEM AND COMPUTER PROGRAM FOR MEASURING ALTERNATING-CURRENT SYSTEM QUANTITIES | 07-07-2016 |
20190146012 | Input Circuit for the Fail-Safe Reading in of an Analog Input Signal | 05-16-2019 |
20220137121 | APPARATUS FOR TESTING ELECTRONIC DEVICES - An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer. | 05-05-2022 |