Entries |
Document | Title | Date |
20080238213 | SWITCHING CIRCUIT, SIGNAL OUTPUT DEVICE AND TEST APPARATUS - There is provided a switching circuit that opens or short-circuits between a first terminal and a second terminal in accordance with a control signal. The switching circuit includes a plurality of switching devices that is serially connected between the first terminal and the second terminal and each of which is opened or short-circuited in accordance with a provided control voltage, and a plurality of control circuits that is provided one-to-one corresponding to the plurality of switching devices, each of which provides a control voltage according to the control signal to the corresponding switching device, and that opens and short-circuits the plurality of switching devices in synchronization with each other. | 10-02-2008 |
20080238214 | SWITCH GEAR CELL AND CONVERTER CIRCUIT FOR SWITCHING A MULTIPLICITY OF VOLTAGE LEVELS WITH A SWITCHGEAR CELL SUCH AS THIS - A switchgear cell having a group of connection is disclosed, with the group of connection having a first and a second controllable bidirectional power semiconductor switch and a capacitor. In order to reduce the stored electrical energy and to save space, the group of connection can have a third, fourth, fifth and sixth controllable bidirectional power semiconductor switch and the first controllable bidirectional power semiconductor switch can be connected back-to-back in series with the second controllable bidirectional power semiconductor switch, the third controllable bidirectional power semiconductor switch can be connected back-to-back in series with the fourth controllable bidirectional power semiconductor switch, the capacitor can be connected to the connection point of the first controllable bidirectional power semiconductor switch to the second controllable bidirectional power semiconductor switchand to the connection point of the third controllable bidirectional power semiconductor switch) to the fourth controllable bidirectional power semiconductor switch, the fifth controllable bidirectional power semiconductor switch can be connected to the connection point of the first controllable bidirectional power semiconductor switch to the second controllable bidirectional power semiconductor switch, and to the fourth controllable bidirectional power semiconductor switch, and the sixth controllable bidirectional power semiconductor switch can be connected to the connection point of the third controllable bidirectional power semiconductor switch to the fourth controllable bidirectional power semiconductor switch and to the second controllable bidirectional power semiconductor switch. | 10-02-2008 |
20080246342 | Electrical Switching Device Arrangement - An electric switching device arrangement has a switching section consisting of at least one first and one second switching point which are electrically connected in series by a conductor section used therefor. In order to compensate external vibrations effecting the electric switching device arrangement provided with the switching section, the conductor section consists of at least two bend slackening conductor elements which are connected to each other by way of a rigid connecting element. The elongated length of the conductor elements is greater than a distance along a straight line between contact points of the switching points. | 10-09-2008 |
20080258564 | Switching mode power supply and switch thereof - A switching mode power supply and a switch thereof are provided. The switch includes a plurality of first transistors, and a second transistor that is turned on/off by a control signal that is equal to that of the plurality of first transistors and in which a second current corresponding to a first current flowing to the plurality of first transistors flows, wherein a ratio of the first current to the second current sequentially changes from a time point at which the second transistor is turned on. Therefore, a switching mode power supply and a switch thereof that can always uniformly sustain a maximum limit current flowing to the switch regardless of a level of an input voltage without including a special additional circuit can be provided. | 10-23-2008 |
20080272657 | User Selectable Pin for Connection of an Internal Regulator to an External Filter/Stabilization Capacitor and Prevention of a Current Surge Therebetween - An integrated circuit device provides a choice of external pins (connections) that may be user selectable for coupling an external filter/stabilization capacitor to an internal voltage regulator. However, connecting the output of a internal voltage regulator to an uncharged external filter/stabilization capacitor (or to a capacitor charged to a different voltage level than the internal regulation voltage) through a low impedance path can cause the regulator output voltage to sag/spike if the internal voltage regulator tries to charge/discharge the capacitor up/down to equilibrium with the regulator output voltage. To minimize this potential sag/spike, the voltage on the external filter/stabilization capacitor may be adjusted in a controlled manner to substantially the same voltage as the voltage on the output of the internal voltage regulator, and then the internal voltage regulator is operationally coupled through a low impedance to the external regulator filter/stabilization capacitor. | 11-06-2008 |
20080303352 | AUTOMATIC CHARGING AND POWER MANAGEMENT DEVICE - An automatic charging and power management device includes a charging control unit and at least one power switching control unit. The charging control unit is connected to a rechargeable battery and an input power source to control the charging operation to the rechargeable battery. The input power source can be a USB-interfaced power source or a rectification transformer based power source. The power switching control unit connects the input power source and is provided with at least one power input terminal, a charging control terminal, a charging voltage terminal, a system actuation switch, a system actuation terminal, a power type terminal, and at least one power output terminal. The charging control terminal and the charging voltage terminal are connected to the charging control unit. The system actuation terminal is actuated on/off by the system actuation switch to generate a system actuation signal. The power type terminal generates an identification signal based on the type of the input power source. The charging control unit is automatically switched between charging the rechargeable battery and supplying an output power through the power output terminal in response to the status of the power input terminal, the system actuation terminal, the power type terminal, and the charging voltage terminal. | 12-11-2008 |
20090039711 | Dual-Polarity Multi-Output DC/DC Converters and Voltage Regulators - A two-output dual polarity inductive boost converter includes an inductor, a first output node, a second output node, and a switching network, the switching network configured to provide the following modes of circuit operation: 1) a first mode where the positive electrode of the inductor is connected to an input voltage and the negative electrode of the inductor is connected to ground; 2) a second mode where the positive electrode of the inductor is connected to the first output node and the negative electrode of the inductor is connected to the second output node; and 3) a third mode where the positive electrode of the inductor is connected to the input voltage and the negative electrode of the inductor is connected to the second output node. | 02-12-2009 |
20090051225 | GATE DRIVING SCHEME FOR DEPLETION MODE DEVICES IN BUCK CONVERTERS - A circuit for driving a switching stage including control and sync switches series connected at a switching node, at least one of the control and sync switches being a normal ON depletion mode device, the circuit comprising a gate driver including first and second switching stages for generating gate drive signals for the sync and control switches, respectively, the first switching stage having a first driver output node and the second switching stage having a second driver output node, a signal from the first node driving the sync switch and a signal from the second node driving the control switch and a circuit connected to the first and second switching stages, the circuit including a first circuit providing a first voltage source, the first circuit being coupled to the first switching stage and to the sync switch, a first bias voltage from the first voltage source being switched by the first switching stage, the first switching stage having a first state wherein the sync switch is on, and a second state wherein the first bias voltage is switched to the gate of the sync switch to turn the sync switch off and a second circuit including a first energy storage device for charging with a second bias voltage, the second switching circuit having a first state, wherein the control switch is on when the sync switch is off and having a second state wherein the control switch is switched off when the sync switch is on by switching the second bias voltage to the gate of the control switch. | 02-26-2009 |
20090079273 | SWITCHING CIRCUIT APPARATUS HAVING A SERIES CONDUCTION PATH FOR SERVICING A LOAD AND SWITCHING METHOD - A circuit for servicing a load connectable with a power supply is disclosed. The circuit includes a plurality of three-terminal switches and one control supply. The three-terminal switches define a series conduction path connectable between the power supply and the load. Each of the plurality of three terminal switches includes a source terminal, a drain terminal, and a gate terminal. The control supply is productive of a control voltage and in power connection between the gate terminal and source terminal of each of the plurality of three-terminal switches. Each of the plurality of three-terminal switches is responsive to the control voltage at its respective gate terminal to close a connection between the respective source terminal and respective drain terminal of each of the plurality of three-terminal switches. | 03-26-2009 |
20090115255 | MICRO-ELECTROMECHANICAL SYSTEM BASED SWITCHING - A current control device is disclosed. The current control device includes control circuitry integrally arranged with a current path and at least one micro electromechanical system (MEMS) switch pair disposed in the current path. The current control device further includes a hybrid arcless limiting technology (HALT) circuit connected in parallel with the at least one MEMS switch pair facilitating the opening of the at least one MEMS switch pair. | 05-07-2009 |
20090167096 | Pulse Width Modulation For Precision Energy/Power Dumping - Accordingly, an energy dumping system for an electric component system is provided. The energy dumping system includes a power consuming element that consumes excess energy of the electric component system and dissipates the excess energy as heat. A solid state switch selectively permits energy of the electric component system to flow across the power consuming element. A control module is operable to monitor a voltage of the electric component system and apply a pulse width modulated (PWM) signal to the solid state switch to selectively control energy of the electric component system to flow across the power consuming element. | 07-02-2009 |
20090167097 | PHOTOVOLTAIC INVERTER INTERFACE DEVICE, SYSTEM, AND METHOD - A photovoltaic system, method and apparatus are disclosed. In an exemplary embodiment, the system includes a first and second inputs adapted to couple to a first and second rails of a photovoltaic array; an inverter configured to convert DC power from the photovoltaic array to AC power; and an interface portion coupled to the first and second inputs and the inverter, the interface portion configured to isolate at least one of the first and second inputs from the inverter and to modulate an application of a voltage from the photovoltaic array to the inverter so as to increase a load on the photovoltaic array and to reduce the voltage applied from the photovoltaic array to the inverter. | 07-02-2009 |
20090195080 | POWER OVER ETHERNET POWER SOURCING EQUIPMENT ARCHITECTURE FOR VARIABLE MAXIMUM POWER DELIVERY - A power over Ethernet (PoE) power sourcing equipment (PSE) architecture for variable maximum power delivery. PoE PSE subsystems rely on some control to “turn on” a power field effect transistor (FET), which allows current to be transmitted to a powered device (PD). A hybrid approach is provided where an internal FET can be augmented with an external FET to provide an architecture that can be flexibly applied to applications with various space, cost and cooling limitations. The maximum delivered power can also be boosted with the addition of an external FET to the internal FET. | 08-06-2009 |
20090206677 | HIGH VOLTAGE SWITCHING DEVICE - A modulator switch composed of stacks of high voltage switching devices connected in series are fired substantially simultaneously to provide pulsed, high voltage switching capable of providing megajoules of energy. The switching devices are fired by a trigger box that is clocked to provide a pulsed signal to each of the switching devices. The trigger box generally consists of a triggering or driver circuit and a pulse generating circuit. These circuits are electrically isolated from one another using suitable shielding and spacing. The pulsed output of the trigger box is fed to the switching devices across low inductance twisted cabling that is passed through toroidal transformers connected to the inputs of the switching devices. Varistors are clamped across each stack of switching devices to provide over-voltage protection for the switching devices. | 08-20-2009 |
20090218890 | Robust semiconductor power devices with design to protect transistor cells with slower switching speed - This invention discloses a power switch that includes a fast-switch semiconductor power device and a slow-switch semiconductor power device controllable to turn on and off a current transmitting therethrough. The slow-switch semiconductor power device further includes a ballasting resistor for increasing a device robustness of the slow switch semiconductor power device. In an exemplary embodiment, the fast-switch semiconductor power device includes a fast switch metal oxide semiconductor field effect transistor (MOSFET) and the slow-switch semiconductor power device includes a slow switch MOSFET wherein the slow switch MOSFET further includes a source ballasting resistor. | 09-03-2009 |
20090243399 | ELECTRICAL POWER SUPPLY ARRANGEMENT FOR A DOWNHOLE MEASUREMENT ASSEMBLY - A downhole measurement assembly comprising a metal casing housing a plurality of tool sections, one of which includes a detector sensitive to a magnetic field, and a DC power supply for said tool sections, the power supply and the tool sections being electrically connected to the casing, characterised in that the power supply is connected to at least one tool section via a switching circuit and a conductor arrangement, the switching circuit comprising a capacitor, a plurality of switches and control means operative alternately to charge the capacitor from the DC supply and discharge the capacitor through said at least one tool section using the conductor arrangement so as to inhibit the generation of an electromagnetic field in the conductor arrangement between the capacitor and the said at least one tool. | 10-01-2009 |
20090309426 | POWER MANAGEMENT SYSTEM HAVING CHARGING CONTROL UNIT AND POWER SWITCHING CONTROL UNIT - A power management system is described. The power management system includes an input power selecting unit, a charging control unit and a power switching control unit. The input power selecting unit receives a plurality of input power sources for selecting one of the input power sources to be inputted to the electronic apparatus. The charging control unit includes a charging controller and a battery. The charging controller receives a charge-enabling signal. The battery is charged by a second voltage and selectively supplies a battery power. The power switching control unit outputs a driving voltage to drive the electrical apparatus based on an adaptor-enabling signal and a power-detecting signal when the power switching control unit switches the input power sources and the battery power to select one of the input power sources and the battery power. The power switching control unit actuates the charging control unit by the adaptor-enabling signal and a system-enabling signal for charging the battery by the second voltage generated from one of the input power sources. | 12-17-2009 |
20100045115 | SWITCHING CIRCUIT, SIGNAL OUTPUT DEVICE AND TEST APPARATUS - A test apparatus for a device under test (DUT) that includes a signal output device that outputs a signal according to a test signal and a detecting section that detects a signal output from the DUT that outputs a detection result. The signal output device includes an output port, a high-voltage side switching circuit between a first terminal and a second terminal, a low-voltage side switching circuit between a first terminal and a second terminal, and a control section that outputs the first and second control signals. Each of the high-voltage and the low-voltage side switching circuits include a plurality of switching devices serially connected between the first and second terminals. The plurality of switching devices are opened substantially in synchronization with each other, such that a voltage inputted to the first terminal is outputted from the second terminal by short-circuiting between the first and second terminals. | 02-25-2010 |
20100052433 | CIRCUIT ARRANGEMENT, SWITCH DEVICE, AND METHOD FOR CURRENTLESS SWITCHING OF A POWER CIRCUIT OF A CIRCUIT ARRANGEMENT - The present invention relates to a circuit arrangement, having a power circuit and a control circuit, in which the power circuit with the control circuit is activatable and deactivatable, and the power circuit is activatable only when the power circuit is switched on and is deactivatable only as long as the power circuit is switched on. The present invention further relates to a switch device, which includes an actuator as well as a first switch for switching a power circuit and a second switch for switch a control circuit of a circuit arrangement, in which the first switch and the second switch are switchable by actuation of the actuator, and the second switch is switchable only when the first switch is switched. The present invention also relates to a method by which a power circuit of a circuit arrangement, is activatable or deactivatable, in which the circuit arrangement includes the power circuit and a control circuit, and the power circuit is switched on before it is activated by switching on of the control circuit. The present invention also relates to a handheld electric power tool, including a switch device. | 03-04-2010 |
20100052434 | SWITCHGEAR CELL FOR SWITCHING FIVE OR MORE VOLTAGE LEVELS - A switchgear cell is disclosed for switching n switching voltage levels, where n is an odd number of 5 or greater (i.e., n=5, 7, 9, . . . ,) is specified. The switchgear cell includes a first and a second branch circuit, wherein each branch circuit includes n-1 series-connected power semiconductor switches and p=n-2 power semiconductor switch junction points among the series-connected power semiconductor switches of each branch circuit. An intermediate circuit includes a first and a second capacitance, the first capacitance being connected to a power semiconductor switch junction point having an odd counting number x of the first branch circuit when the power semiconductor switch junction points can be counted starting with an odd counting number x from the first end to the second end of a respective branch circuit. The second capacitance is connected to a power semiconductor switch junction point of the second branch circuit. A power semiconductor switch of the intermediate circuit is connected to a power semiconductor switch junction point having a counting number x<(p+1)/2 of the first or second branch circuit or to the first end. Alternatively, the intermediate circuit includes a capacitance connected to a power semiconductor switch junction point having a counting number x<(p+1)/2 of the first and second branch circuits, and a power semiconductor switch connected to a power semiconductor switch junction point having a counting number x<(p+1)/2 of the first or second branch circuit. Another power semiconductor switch of the intermediate circuit is connected to a power semiconductor switch junction point having a counting number x≦(p+1)/2 of the first or second branch circuit, and is not directly connected to the capacitance of the intermediate circuit. | 03-04-2010 |
20100213771 | Electronic Device and Printing Device - An electronic device controlled by software, includes a first switch that shuts off electric power supplied via a first supply line in accordance with operation by a user; a second switch that shuts off electric power supplied via a second supply line in accordance with control by the software; and a delay circuit that outputs an instruction signal for shutting off electric power supplied via the second supply line to the second switch after a first delay time which is longer than a time required for a termination process of the electronic device has passed when the first switch shut off electric power supplied via the first supply line, wherein the delay circuit stores, as a setting value, a second delay time which is shorter than the time required for the termination process of the electronic device at a time of startup of the electronic device. | 08-26-2010 |
20100314948 | Impedance-Based Power Supply Switch Optimization - In one embodiment, a power gated circuit block includes power switches that couple at least one of the power supply grids within the block to the global power supply grids of the integrated circuit. The power switches receive an enable that indicates whether or not the power gated block is enabled or disabled. If the power gated block is enabled, the power switches are turned on and electrically connect the global power supply grid with the internal (or local) power supply grid; otherwise the power switches electrically isolate the local power supply grid from the global power supply grid. The power switches are physically distributed over an area occupied by the power gated block, including near an edge of the area. The number of power switches near the edge is greater than the number of switches included at other locations in the area to provide a worst case impedance experienced at points throughout the area that is approximately equal. | 12-16-2010 |
20110037323 | AUTOMATIC SWITCH CONFIGURATION - A system including an input and a controller. The input is configured to receive a switch signal from multiple different types of switches. The controller coupled to the input and can determine the type of the switch by an analysis of the switch signals received from the switch through the input. | 02-17-2011 |
20110181124 | BREAKER AND POWER MONITORING SYSTEM - A breaker is provided including a plurality of branch breakers. The plurality of branch breakers each include: a current measuring section configured to measure a current flowing through an internal power line; a radio communicating section configured to transmit a measured value of the current measuring section to an information processing device by radio; and a power supply section configured to supply power to the radio communicating section. | 07-28-2011 |
20110291493 | Switching device and system with switching device - A switching device switches at least one current phase between responsive current phase input and responsive current phase output, wherein the switching device is suitable for switching electrical current of a power circuit of an electric motor. The switching device further includes a first communication system interface for a first communication system, a second communication system interface for a second communication system, and a selecting unit for selecting whether the switching device is a master or slave in relation to the second communication system. | 12-01-2011 |
20120013199 | METHOD FOR OPERATION OF A CONVERTER CIRCUIT AND APPARATUS FOR CARRYING OUT THE METHOD - A method and apparatus are provided for operation of a converter circuit, which includes a converter unit having a multiplicity of controllable power semiconductor switches, and which is connected via a transformer to a three-phase electrical AC voltage power supply system. The method includes controlling the controllable power semiconductor switches by means of a control signal which is formed from a regulating signal. In order to damp oscillations of a power supply system voltage above the fundamental frequency, a filtered power supply system current is formed by filtering a power supply system current using a low-pass filter characteristic. A filtered transformer inductance voltage is formed by filtering a transformer inductance voltage, which is formed from the power supply system current, using a low-pass filter characteristic. A filtered power supply system voltage is formed by filtering a power supply system voltage using a low-pass filter characteristic. The regulating signal is formed by addition of a regulator voltage, the filtered transformer inductance voltage, and the filtered power supply system voltage, where the regulator voltage is formed by regulating the filtered power supply system current at a power supply system current nominal value. | 01-19-2012 |
20120074791 | SUPPLY CIRCUIT FOR SUPPLYING A SWITCH CIRCUIT - To improve energy efficiencies, supply circuits ( | 03-29-2012 |
20120112558 | INPUT DEVICE AND METHOD FOR DETECTING SWITCH OF INPUT DEVICE - An input device includes a resistor group, an input terminal, a plurality of switches, and a control unit. The resistor group includes a plurality of resistors connected in series. The input terminal is connected to one end of the resistor group. Each switch of the plurality of switches has one end connected to each resistor of the plurality of resistors at an opposite side viewed from the input terminal and the other end grounded. The control unit detects an applied voltage to the input terminal when the plurality of switches are all turned off. Furthermore, the control unit detects an output voltage from the input terminal when any of the plurality of switches is turned on, and detects a switch that is turned on among the plurality of switches based on a voltage ratio of the output voltage to the applied voltage. | 05-10-2012 |
20120139361 | METHOD AND APPARATUS FOR REDEFINING ELECTRICAL POWE SYSTEM WIRING - Methods and apparatus detect wiring error(s), identify to the user what wiring error has been detected, and redefine the wiring configuration. An indication is provided to the user that the apparatus has redefined the wiring configuration. Steps may be automated and/or initiated by the user. | 06-07-2012 |
20120139362 | Fail-Safe Switching Module - A fail-safe switching module having a first switching device and a second switching device, the first and second switching devices being configured to switch a load by a switching-on device, a first temperature sensor being arranged on the first switching device and a second temperature sensor being arranged on the second switching device. The first switching device is arranged in series with first and second switching-off devices, and the second switching device is arranged in series with third and fourth switching-off devices. The first switching-off device and the third switching-off device are configured to react to the first temperature sensor. The second and fourth switching-off devices are configured to react to the second temperature sensor to switch off the first and second switching devices in the event of an overtemperature of the first switching device or the second switching device. | 06-07-2012 |
20120175971 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear is configured including phase-A, phase-B, and phase-C breaker units. For example, the phase-A breaker unit includes breakers connected in series in a horizontal first direction, disconnectors annexed on the breaker, disconnectors annexed on a breaker, and disconnectors annexed on a breaker. The disconnector is connected to a main bus that extends in the first direction, and the disconnector is connected to a main bus that extends in the first direction. Each of the disconnectors on the breakers is arranged while a longitudinal direction thereof is set to a second direction orthogonal to the first direction so that a switching direction of the disconnector is equal to the second direction. Thereby, the length of the main buses can be shortened, and an interphase distance and a breaker-to-breaker distance can be reduced. | 07-12-2012 |
20120181877 | Configuration and method for activating at least one triggering element for a passenger protection means - A circuit configuration for activating a triggering element for a passenger protection arrangement includes a high-side circuit which establishes a first connection between an energy source and the triggering element, and a low-side circuit which establishes a second connection between the triggering element and ground. In addition, a regulator, which regulates a triggering current for the triggering element is provided, the regulator being assigned to the high-side circuit and/or the low-side circuit, and the high-side circuit and/or the low-side circuit each have/has two output stages, which are connected in parallel, for regulating the triggering current per triggering element, at least one of the at least two output stages having a current regulator at least one transistor connected in parallel. | 07-19-2012 |
20120200171 | CONTROL DEVICE - A control unit of an uninterruptible power supply device includes a PWM circuit generating a plurality of PWM signals controlling a plurality of IGBT elements of a power conversion unit | 08-09-2012 |
20120212075 | Programmable gate controller system and method - Controlling power switches with a programmable gate controller system proximate associated power switches and remote from the central controller including sensing at least one predetermined condition local to the associated power switches; reporting the sensed conditions to the remote programmable gate controller system; developing, in response to the sensed condition at least one control signal in the remote programmable gate controller system; and applying the control signal to the associated power switches | 08-23-2012 |
20120228962 | POWER SUPPLY SELECTOR AND METHOD FOR MINIMIZING AN INRUSH CURRENT IN A POWER SUPPLY SELECTOR - A method for minimizing an inrush current in a power supply selector and a power supply selector system is provided. The power supply selector includes a plurality of power input nodes, a power output node, a first transistor and a second transistor. Each of the power input nodes may be coupled to a first switch having a first on-resistance and to a second switch having a second on-resistance. The second on-resistance is greater than the first on-resistance. The first switch and the second switch are preferably coupled in parallel. The power supply selector may be configured to couple a selected one of the power input nodes to the source of the first transistor and to the gate of the second transistor so as to sense a sense voltage at the selected power input node. | 09-13-2012 |
20120242169 | ELECTRIC CIRCUIT CONFIGURATION FOR SWITCHING AN ELECTRICAL LOAD - The invention relates to an electric circuit configuration for switching an electrical load ( | 09-27-2012 |
20120262007 | SWITCH MATRIX MODELING SYSTEM AND METHOD - A method that includes identifying a desired signal connectivity through a switch matrix, where the switch matrix includes a plurality of switching elements, and where the switching elements are selectively operable in a plurality of states to provide a plurality of signal paths for routing signals through the switch matrix. The method also includes identifying a sorting network model that corresponds to a topology of the switch matrix, applying a sorting algorithm to the sorting network model, and determining, based on the results of applying the sorting algorithm, operational states of the plurality of switching elements to provide signal paths corresponding to the desired signal connectivity. | 10-18-2012 |
20120262008 | SWITCHING ELEMENT SYSTEM AND METHOD - A 2×2 switching element that includes first and second relays each having a first terminal, a second terminal and a third terminal, wherein the first and second relays each operate between a first state to connect the first terminal to the second terminal and a second state to connect the first terminal to the third terminal. The second terminals and third terminals, respectively, of the first and second relays are coupled to one another. The 2×2 switching element is selectively operable between: a first switching state where the first relay is operated in the first state and the second relay is operated in the second state, and a second switching state where the first relay is operated in the second state and the second relay is operated in the second state. | 10-18-2012 |
20120262009 | SWITCH MATRIX SYSTEM AND METHOD - A switch system having a plurality of switch inputs, a plurality of switch outputs, a switch matrix comprising a plurality of N×N switching elements to selectively couple one or more of the plurality of switch inputs to one or more of the plurality of switch outputs during use to provide one or more paths for routing signals from one or more of the switch inputs to one or more of the switch outputs during use. | 10-18-2012 |
20120286587 | Intelligent Control System for High-Voltage Switch and Control Method Thereof - An intelligent control system for a high-voltage switch and a control method thereof. The control system includes a control terminal ( | 11-15-2012 |
20120293013 | WIRELESS OCCUPANCY SENSING WITH PORTABLE POWER SWITCHING - A system may include a wireless receiver to receive a wireless signal from an occupancy sensor and at least one power switch to control power to at least one load in response to the wireless signal, where the wireless receiver and power switch are included in a local switching device, and where the local switching device comprises a power pack having a housing, a power supply to convert high-voltage power to a low-voltage source for operating internal circuitry in the power pack, and switch control logic to implement an unoccupied delay time. | 11-22-2012 |
20120299393 | DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT | 11-29-2012 |
20120306288 | SWITCHING CIRCUIT - A switching circuit according to one embodiment includes first to fourth semiconductor switch elements. A pulse-like signal is applied to each input terminal of the switch elements such that when the first and fourth switch elements are in an ON (OFF) state, the remaining switch elements are in an OFF (ON) state. The switching circuit includes first and second capacitance elements. The first capacitance elements connected between an output terminal of the second semiconductor switch element and the second capacitance elements connected between an input terminal of the second semiconductor switch element and an output terminal of the fourth semiconductor switch element has a capacitance to reduce a parasitic capacitance between the input and output terminals of each of the fourth and second switch elements at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse-like signal. | 12-06-2012 |
20130009491 | SWITCHING MODULE FOR USE IN A DEVICE TO LIMIT AND/OR BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE - A switching module, intended to be used in a medium or high voltage DC breaker or a DC current limiter, includes at least one power semiconductor switching element, a gate unit arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor arranged to provide power to a power supply input of the gate unit. The switching module further includes a power transformation device arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor. | 01-10-2013 |
20130020881 | CIRCUIT ARRANGEMENT AND METHOD FOR INTERRUPTING A CURRENT FLOW IN A DC CURRENT PATH - A DC current path for DC power transmission includes at least a first switching element and a second switching element connected in series. A resonance circuit is configured to be connectable in parallel to the series connection of the at least one first switching element and second switching element by means of a switch. | 01-24-2013 |
20130038140 | SWITCHING CIRCUIT - Provided is a switching circuit including an arm having two switching elements connected. The switching elements are SiC semiconductors, and when a commutation current flows to the reverse conducting element, the switching element having the reverse conducting element connected in parallel thereto is turned on. | 02-14-2013 |
20130057084 | HALL PLATE SWITCHING SYSTEM - Disclosed herein is a hall plate switching system including: a hall plate that generates first hall voltage at both ends of a first node and a third node facing each other and generates second hall voltage at both ends of a second node and a fourth node facing each other; a first switch unit that is connected with the first node and the second node and controls on/off of current flowing in the first node and the second node; a second switch unit that is connected with the third node and the fourth node and controls on/off of current flowing in the third node and the fourth node; and a resistor unit that is connected with the second switch unit and reduces trans-conductance of the first switch unit and the second switch unit. | 03-07-2013 |
20130062969 | COMPACT AND VOLTAGE STABLE AUTOMATIC CHANGE OVER SWITCH - A voltage-stabilizing automatic change-over switch ( | 03-14-2013 |
20130106199 | MASTER SLAVE RADIO CONTROL SYSTEM | 05-02-2013 |
20130113301 | SAFETY CONTROL SYSTEM - A safety control system is provided, which is capable of monitoring many more drive circuits by using a single controller without modifying the configurations of the controller and the drive circuit. An a-contact of a relay is electrically connected between a FB (feedback) output terminal and a FB input terminal of a safety controller. A b-contact of the relay is electrically connected between a signal output terminal (safety output ( | 05-09-2013 |
20130119782 | ELECTRIC POWER SOURCE CIRCUIT AND ABNORMALITY DIAGNOSIS SYSTEM - A control unit for a rotary electric machine includes a first current command module, a second current command module, a change module, and a return module. The first module performs a first current command on a maximum efficiency characteristic line on a d-q plane thereby to drive the machine at a maximum efficiency. The second module performs a second current command on a switching line set at a retard angle side relative to the maximum efficiency characteristic line. The change module changes a control mode from a rectangular wave voltage phase control mode to an overmodulation current control mode when an operation point of the machine reaches the switching line. The return module returns the current command from the second command to the first command after performance of the second command for a predetermined period. | 05-16-2013 |
20130154392 | SYSTEM FOR BYPASSING AND ISOLATING ELECTRICAL POWER CELLS - An electrical power cell system including first and second electrical power cells having first and second terminals, one or more transient voltage suppressors connected in parallel with a relay, the relay having two states, the first state of the relay connects the first and second electrical power cells in series, and the second state of the relay bypasses the first electrical power cell so that the first electrical power cell is not connected in series with the second electrical power cell. | 06-20-2013 |
20130214616 | TRANSMISSION LINE PULSING - A circuit and method for electrostatic discharge testing using transmission line pulsing. A plurality of transmission line networks may be connected to a device under test, and each transmission line network may have different connected terminations. Switches may be used to select which transmission line networks are connected to the device under test, and which terminations, if any, are connected to transmission line networks. | 08-22-2013 |
20130241312 | POWER SUPPLY SYSTEM - A time-limited power supply system for providing power to an electronic device includes a first input module, a controlling module, a switch module, a display module, and an alarm module. The first input module inputs a power on time signal in the controlling module. The controlling module receives the power on time signal and outputs a power on control signal accordingly. The switch module receives the power on control signal and provides an AC voltage to the electronic device for a set time. The display module displays the time for which the power on state will continue. The controlling module outputs an alarm signal when a remaining power on time is less than a certain period of time. The alarm module issues an audible warning to remind the user that the power on time of the electronic device may need to be extended. | 09-19-2013 |
20130241313 | SMART WALL PLATE AND MODULAR JACKS FOR SECURE NETWORK ACCESS AND/OR VLAN CONFIGURATION - One embodiment is directed to an apparatus comprising one or more front connectors, wherein each front connector comprises a respective interface configured to read a storage device associated with a connector that is adapted to be connected to the front connector. The apparatus further comprises one or more rear connection points and one or more switches. The apparatus is configured to automatically configure the apparatus at least in part based on information read from the storage device. | 09-19-2013 |
20130249314 | SYSTEMS AND METHODS FOR SWITCHING BETWEEN VOLTAGES - Systems and methods for switching between voltages are provided. One system includes an output, first and second switches coupled to the output. The system also includes a first transmission gate coupled to the first switch and a second transmission gate coupled to the second switch. One method includes receiving, at the first transmission gate, a first pair of complementary voltages and receiving, at the second transmission gate, a second pair of complementary voltages. The method further includes selecting the smallest voltage amongst both pairs of complementary voltages and outputting a third pair of complementary voltages. In one method, the first pair of complementary voltages includes a first negative voltage and a positive voltage, the second pair of complementary voltages includes a second negative voltage and the positive voltage, and the third pair of complementary voltages includes the smaller of the first and second negative voltages and the positive voltage. | 09-26-2013 |
20130249315 | SWITCHING COMPONENT AND SWITCH SYSTEM COMPRISING THE SAME - A switching component comprising a number of switch sets in parallel is disclosed herein. Each switch set comprises a number of power switches and a backup power switch in series. The backup power switch has a default position of closed. Rated powers of the power switches and the backup power switch are less than a rated power of the switching component, and the switching component is modular. A switch system comprising the switching component is also described herein. | 09-26-2013 |
20130278078 | METHOD, CIRCUIT BREAKER AND SWITCHING UNIT FOR SWITCHING OFF HIGH-VOLTAGE DC CURRENTS - A high voltage DC circuit breaker includes a semiconductor switching assembly in series with a mechanical switch. When the semiconductor switching assembly is switched off due to a current fault, a residual current flowing through arresters of the semiconductor switching assembly is switched off by the mechanical switch. A capacitor arranged parallel to the mechanical switch leads to passive resonance effects, which in turn induce current zero crossings in its arc. The current zero crossings allow for reliable extinguishing of the arc. The mechanical switch can be an AC circuit breaker. | 10-24-2013 |
20130285471 | TUNER CIRCUIT - An exemplary tuner circuit is provided. The circuit includes a power control system, a first switch module, and a second switch module. The first switch module is connected between the power control system and an electronic component. The second switch module is connected between the power control system and a tuner. The power control system is independent of the electronic component it supplies. When the tuner is turned on, the power control system outputs a high level voltage to the first switch module and outputs a low level voltage to the second switch module, the first switch module disconnects power to the electronic component, the second switch module re-establishes a connection between the power control system and the tuner according to the low level voltage output by the power control system. | 10-31-2013 |
20130300212 | CIRCUIT FOR PROVIDING DUMMY LOAD - A circuit for providing a dummy load includes first to fifth resistors, a comparator, and first to fifth electronic switches. When a power good signal from a power supply is at a low level signal, the first electronic switch is turned off. The second to fourth electronic switches are turned on. The fifth electronic switch is turned off. When the power good signal from the power supply is at a high level signal, the first electronic switch is turned on. The second to fourth electronic switches are turned off. The fifth electronic switch is turned off. | 11-14-2013 |
20130328413 | CONTROLLER OF MULTI CIRCUIT LOAD BREAK SWITCH FOR ELECTRIC POWER DISTRIBUTION - A control device of a multi circuit load break switch according to the disclosure may include a first multiplexer selectively providing an output signal according to a remote close signal or remote open signal; a field closing switch selectively commanding a close operation; a field opening switch selectively commanding an open operation thereof; a second multiplexer selectively providing a field closing switch actuation signal or field opening switch actuation signal; a first exclusive-OR circuit unit outputting an open control signal; a second exclusive-OR circuit unit outputting a close control signal; an open command signal generation unit releasing an open command signal; a close command signal generation unit; a first photo coupler providing an open state signal to the open command signal generation unit; and a second photo coupler providing a close state signal to the close command signal generation unit. | 12-12-2013 |
20140070627 | Integrated Group III-V Power Stage - In one implementation, an integrated group III-V power stage includes a control switch including a first group III-V transistor coupled to a sync switch including a second group III-V transistor. The integrated group III-V power stage may also include one or more driver stages, which may be fabricated in a group die or dies. The driver stage or driver stages, the control switch, and the sync switch may all be situated in a single semiconductor package. | 03-13-2014 |
20140077621 | SWITCHING CIRCUIT FOR ANTENNA - A switching circuit for an antenna includes a first switching unit, a second switching unit, a third switching unit, a fourth switching unit, a first clamping unit and a second clamping unit. The first clamping unit is coupled to the first switching unit and the fourth switching unit. The first clamping unit includes a first clamping device and a first resistor, which are connected in parallel. The second clamping unit is coupled to the second switching unit and the third switching unit. The second clamping unit includes a second clamping device and a second resistor, which are connected in parallel. | 03-20-2014 |
20140077622 | CIRCUIT ARRANGEMENT FOR CONNECTION TO AN ELECTRICAL CIRCUIT AND ELECTRICAL CIRCUIT - A circuit arrangement connected to an electrical circuit including a transformer with primary winding connected to the electric power grid and secondary winding connected to a power converter with a capacitor, the circuit arrangement has a primary winding coupled to the auxiliary winding, which is connected to a switching device. | 03-20-2014 |
20140084706 | CIRCUITRY AND METHODS FOR SWITCHING POWER - Circuitry and methods related to switching power are provided. One of a plurality of current-limited power distribution switches is enabled in accordance with a hierarchical scheme depending upon the respective states of plural power sources. The power source having the greatest available load carrying capacity is thus coupled to a power node for provision to load entities. Servers, computing devices, printers, and other apparatus can include such selective power provisioning. | 03-27-2014 |
20140097701 | APPLICATION OF NORMALLY-ON SWITCHING ELEMENTS/DEVICES IN A STACKED SWITCHING CIRCUIT - A stacked switching circuit with normally-on devices includes a first normally-on switch coupled between a first input rail and an output port, and is coupled to be switched in response to a first control signal. A second normally-on switch is coupled to the output port and is coupled to a normally-off switch in a cascode coupled configuration. A second terminal of the normally-off switch is coupled to a second input rail. The normally-off switch is coupled to be switched in response to a second control signal. Switching of the stacked switching circuit is coupled to provide chopped high frequency pulses through the output port. Current flow through the stacked switching circuit between the first input rail and the second input rail is blocked at startup. | 04-10-2014 |
20140111025 | SAFELY DEPLOYING POWER - A first-switch-actuation-polarity power is applied to a first-switch actuation line, the first polarity being defined relative to a first voltage on a first-switch-actuation-enable line, causing the first switch to actuate and remain actuated after the applied first-switch-actuation-polarity power is removed. Actuating the first switch couples a first-switch power input line to a first-switch power output line and the first-switch power input line to the first-switch enable line. The first-switch enable line is coupled to a second-switch actuation enable line on a second switch. Second-switch-actuation polarity power is applied to the second-switch actuation line on the second switch, the second polarity being defined relative to a voltage on the second-switch actuation enable line and being opposite of the first polarity, causing the second switch to actuate and remain actuated after the applied second-switch-actuation-polarity power is removed and coupling a second-switch power input line to a second-switch power output line. | 04-24-2014 |
20140117775 | POWER FEEDING PATH SWITCHING DEVICE AND POWER FEEDING SYSTEM - A power feeding path switching device includes a relay. The relay becomes excited when a power supply current flows across the relay in a first direction of a power feeding path, and becomes unexcited when a power supply current flows across the relay in a second direction opposite to the first direction, or when a power supply current does not flow across the relay. The relay in an unexcited state connects the power feeding path with ground, and the relay in an excited state does not connect the power feeding path with ground. | 05-01-2014 |
20140117776 | SWITCHING DEVICE - A switching device for switching bipolar DC currents in a high-voltage system includes at least two electromechanical switching units and a semiconductor switching arrangement. The electromechanical switching units have a first switching status and a second switching status. In the first switching status, the DC current can be passed via at least one of the electromechanical switching units without in this case flowing via the semiconductor switching arrangement. In the second switching status of the electromechanical switching units, the DC current can be passed via the semiconductor switching arrangement and can be switched off. | 05-01-2014 |
20140125148 | SERIAL LOAD LEVELING SYSTEM AND METHOD - A load leveling system and method capable of controlling switches such that it appears to a generator that the load is constant. The purpose is to prevent high-load simultaneous switching or multiple synchronous switching from damaging sensitive equipment. The present invention utilizes a central controller communicating to a number of switches such that the switches turn off and on in a synchronized, serialized manner. As one switch turns “off,” another should be turning “on” until a cycle is completed. In this manner, the generator will only see a single “on” and a single “off” load per cycle. The various switches are scheduled such that, ideally, the power load seen by the power source has emissions of no more than one PWM load superpositioned with zero or more constant, non-modulated loads. | 05-08-2014 |
20140132080 | OPERATING A STATIC TRANSFER SWITCH TO ELIMINATE TRANSFORMER INRUSH CURRENT IN THE PRESENCE OF RESIDUAL FLUX - A method is provided for operating a static transfer switch to eliminate transformer inrush current in the presence of residual flux. The method includes: detecting an interrupt of electric power at an output terminal of the static transfer switch; controlling amplitude of voltage at the output terminal using phase fired control of one or more silicon controlled rectifiers interposed between a voltage source and the output terminal, where the amplitude of voltage is set at a value less than a peak value of the sinusoidal waveform; and increasing the amplitude of voltage at the output terminal incrementally until the amplitude reaches a peak value. | 05-15-2014 |
20140139044 | BRIDGE CIRCUIT WITH IMPROVED FAIL-SAFETY - A bridge circuit with improved fail-safety, having a first electrical load with a first contact terminal and a second contact terminal, and a first series circuit connected to a first node and to a second node. A second series circuit is connected to a third node and to a fourth node. A third series circuit is connected to the second node and to a fifth node. A fourth series circuit is connected to the fourth node and to a sixth node. The first node and the third node are connected to a supply voltage, and the fifth node and the sixth node are connected to a reference voltage, and the first contact terminal is connected to the second node and the second contact terminal is connected to the fourth node. | 05-22-2014 |
20140145519 | HIGH-EFFICIENCY, ENERGY-SAVING DEVICE FOR INSERTING BETWEEN A POWER SOURCE AND A MOTIVE AND/OR LIGHTING POWER LOAD - An energy-saving device ( | 05-29-2014 |
20140175901 | SWITCH CIRCUIT AND SPDT SWITCH CIRCUIT - The present invention relates to a switch circuit and a single pole double throw (SPDT) circuit. The switch circuit includes: a MOS transistor transferring or blocking a signal according to a turn on/off operation thereof; a gate resistor connected to a gate of the MOS transistor; and a variable gate resistor circuit increasing a resistance value of the gate resistor when the MOS transistor is changed from a turn-off state to a turn-on state. | 06-26-2014 |
20140183974 | UNIVERSAL POWER INTERFACE - An electronic device is provided that may include an input port to couple to an external device, and a universal power interface to determine a type of the external device connected to the input port based at least on a voltage of a voltage supply line. The universal power interface may provide a power delivery path based on the determined type of the external device. | 07-03-2014 |
20140217833 | HYBRID HIGH-VOLTAGE DC BREAKER - A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits | 08-07-2014 |
20140239739 | INPUT OPERATION RECEIVING APPARATUS AND THRESHOLD VALUE ADJUSTING METHOD - An input operation receiving apparatus includes a mechanical switch; a capacitance sensor that is provided at a position where an operator comes into contact therewith when the mechanical switch is operated and that detects capacitance; and an adjustment unit that adjusts a threshold value for a contact determination when the capacitance sensor is used as a switch, on the basis of a detection value at a time of operation, the detection value at the time of operation being a detection value of the capacitance sensor when an operation of the mechanical switch is detected. | 08-28-2014 |
20140265630 | PHASE DETECTION CIRCUIT - A phase detection circuit includes first to third power input modules, first to third power input terminals, an alarm module, first to fifth electronic switches, and a power management module. The power input modules are used to convert pulse signals from a multi-phase power supply into direct current voltages and output the direct current voltages to the first to third electronic switches. When the multi-phase power supply operates abnormally, no direct current voltages are output to the first to third electronic switches and the alarm module alarms. | 09-18-2014 |
20140300208 | SWITCH STATE DETECTION CIRCUIT AND SWITCH SYSTEM - A switch state detection circuit according to the present invention comprises: a plurality of switch connection portions to each of which a switch is connected, a connection line to which any one of the switch connection portions is connected in a switchable manner, a detection portion that detects a state of the switch connected to the connection line based on a state of the connection line, and a connection control portion that switches successively each of the switch connection portions and connects it to the connection line, wherein the state of each switch is detected. | 10-09-2014 |
20140319928 | AUTO DETECTION OF GUARD LOCKING DEVICE - A safety switching device for driving a plurality of different kinds of guard locking devices is provided. The safety switching device comprises a first terminal and a second terminal for connecting a guard locking device, and a safety processor adapted for controlling drive signals at the first and the second terminal to drive the guard locking device. The safety processor is adapted for determining a kind of a guard locking device connected to the first and/or the second terminal out of a plurality of different kinds of guard locking devices by detecting external electrical connections between the first terminal, the second terminal, and a reference potential. The safety processor is further adapted for controlling the drive signals depending on the determined kind of the guard locking device. | 10-30-2014 |
20140327325 | DISCONNECT CABINET WITH WIRELESS MONITORING CAPABILITY - A disconnect system for a solar installation shuts down power upstream from an inverter, so that it is safe for solar field personnel to perform work related to a solar installation. The system actuates multiple disconnect devices in one motion by a linkage assembly which can associate 2-4 disconnect switches with a single handle. This system preferably includes hardware and logic for monitoring the current and voltage output of electrically coupled combiner/recombiner boxes in the solar field, and for wirelessly transmitting this data to a user. A single disconnect cabinet can accommodate 2-20 inputs from associated recombiner boxes with 5 handles or less. | 11-06-2014 |
20140346891 | DEVICE AND METHOD TO BREAK THE CURRENT IN POWER TRANSMISSION OR DISTRIBUTION SYSTEM - A direct current (DC) circuit breaker for power transmission or distribution system includes a current sensor for sensing current of a system, a controller, a physical switch, and multiple switch modules. The multiple switch modules are electrically coupled to the current sensor and the physical switch in series. Each switch module includes multiple base elements electrically coupled in parallel. Each base element includes a first silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET) and a second SiC MOSFET electrically coupled in an opposite series connection mode. The first and second SiC MOSFETs are configured in a synchronous rectification mode by channel reverse conduction control. The controller controls the multiple switch modules to connect current in the system, and break current of the multiple switch modules according to sensed current signals from the current sensor. | 11-27-2014 |
20140361637 | BUS SWITCHING CIRCUIT - A bus switching circuit includes a bus switching element which is connected between a first input/output terminal and a second input/output terminal, a first switching element which is connected between the second input/output terminal and a first voltage wiring, and a second switching element which is connected between the second input/output terminal and the first voltage wiring, the second switching element having an internal resistance to an electric current flowing therethrough which is larger than that of the first switching element. The bus switching circuit further includes a signal generation circuit which controls the first switching element and the second switching element by outputting the first control signal and the second control signal based on a result of the comparison between a first voltage applied to the first input/output terminal and a first threshold value. | 12-11-2014 |
20140375142 | UNINTERRUPTIBLE POWER SUPPLY WITH A POWER ISOLATION CIRCUIT LOOP - An interruptible power supply with a power isolation circuit loop has a base with a battery chamber defined in the base, a fixed top cover, and a movable top cover. The battery chamber serves to receive a battery. The fixed top cover and the movable top cover are mounted on two ends of the base, and the movable top cover corresponds to the battery chamber. The fixed top cover has a loop switch therein connected with a power loop and having an actuation member to switch on or off the power loop. When the movable top cover is mounted on the base, an urging member formed on the movable top cover triggers the actuation member of the loop switch to connect with the power loop. When the movable top cover is removed, the power loop is disconnected. Accordingly, the UPS is economical in terms of parts, cost and space utilization. | 12-25-2014 |
20150008762 | AIR CONDITIONER - An indoor unit of an air conditioner includes a relay K | 01-08-2015 |
20150042176 | MULTI-FUNCTIONAL DIRECT CURRENT ICE MELTING AUTOMATIC SWITCHING CIRCUIT AND SWITCHING METHOD THEREOF - A multi-functional automatic switching circuit for direct current ice melting and a switching method thereof are provided. The automatic switching circuit comprises at least one sub-switching circuit. The sub-switching circuit comprises a six-pulse current converter (R) with no saturable reactor, six reactors (L | 02-12-2015 |
20150048691 | UPS SYSTEMS AND METHODS USING CURRENT-CONTROLLING LOW-LOSS MODES - Some embodiments provide a UPS including a non-current-commutated solid-state bypass switch. The bypass switch may include at least one transistor configured to control current to the load. Further embodiments provide a UPS including a converter including a first half-bridge circuit having an input port configured to be coupled to an AC source and an output port coupled to first and second buses and a second half-bridge circuit having an output port configured to be coupled to a load and an input port coupled to the first and second buses. The UPS further includes a control circuit configured to control the converter to provide a first mode wherein the first bridge circuit and the second bridge circuit operate as a rectifier and an inverter, respectively, and a second mode wherein the first and second bridge circuits operate as a pass-through switch from the AC source to the load. | 02-19-2015 |
20150061407 | DYNAMIC ELEMENT MATCHING OF RESISTORS IN A SENSOR - An apparatus comprising: a sensor; and a resistor array comprising a set of resistors; wherein on a first cycle: at least one first of said resistors is configured to provide a first resistance value; and on a second cycle: at least one second of said resistors is configured to provide said first resistance value. | 03-05-2015 |
20150076923 | SYSTEMS AND METHODS FOR MEMS-BASED CROSS-POINT ELECTRICAL SWITCHING - A Microelectromechanical systems (MEMS)-based N×M cross-point switch, a MEMS-based system, and a method provide MEMS-based cross-point electrical switching for a Layer 0 flow-based switch. The N×M cross-point switch includes N inputs each at least 10 Gbps, M output each at least 10 Gbps, a plurality of Radio Frequency (RF) MEMS switches selectively interconnecting the N inputs to the M outputs; and control and addressing circuitry to selectively control the plurality of RF MEMS switches to switch each of the N inputs to a corresponding output of the M outputs. The systems and methods provide an electrical switching fabric for flow-based switching of wavelengths that can be part of a Reconfigurable Electrical Add/Drop Multiplexer (READM) with similar functionality as a ROADM in the electronic domain. | 03-19-2015 |
20150097446 | INTEGRATED SPDT OR DPDT SWITCH WITH SPDT RELAY COMBINATION FOR USE IN RESIDENCE AUTOMATION - Method and apparatus for integrating one of single and plurality of hybrid SPDT or DPDT switch with one of SPDT and DPDT relay via contactors structured to connect the poles of the relay and the switch directly or via conductive structures including PCB assembly, for operating electrical appliances via the switch manual key and remotely by powering the relay coil having latching or non-latching armature, with a CPU program providing the manual key and the manual keys of each SPDT or DPDT connected in a traveler lines to the integrated switch-relay to switch on-off group of loads and all the loads of home automation network or grid via optical cable, RF, IR in line of sight and bus line. | 04-09-2015 |
20150137617 | Using Pulsed Biases to Represent DC Bias for Charging - Power transfer systems including a direct current source and a plurality of outputs operable in several modes. A ground mode may couple an output to circuit ground and a current mode may couple the output to the direct current source. The power transfer system may also include a controller configured to iteratively select a pair of outputs from the plurality of outputs. Once a pair is selected, the controller may set a first output of the pair of outputs to the current mode and the second to ground mode for a determined duration. After the duration has passed, the controller may set the first output to the ground mode and the second output to the current mode for the same duration. Thereafter the controller may select another pair of outputs. | 05-21-2015 |
20150145347 | LOW POWER CONSUMPTION AC LOAD SWITCHES - A circuit for ensuring ultra-low power relay switching to control an AC load and extend a battery's lifetime. A control circuit may be designed to work where power is provides at very low duty cycle in that the on-time of applied voltage is quite short compared to its off-time. During the on-time, power such as that from a battery may be consumed to drive the circuit but overall such consumption of power is almost miniscule, for instance, a few microamperes or less from a three volt battery. An input FET may drive a pair switching FETs that provide pulses to a transformer which provides a ramp of voltage that remains above zero volts to a pair of AC switch FETs. An output of the AC switch may go to operate relays of a wire saver for operating one or more thermostats. | 05-28-2015 |
20150294813 | POWER ROUTER, POWER NETWORK SYSTEM, POWER INTERCHANGE METHOD, AND OPERATION CONTROL PROGRAM OF POWER ROUTER - Provided is a power router to construct a power network system in which power cells are asynchronously interconnected. The power router includes a DC bus, a power conversion leg having a function of bidirectionally converting power, and a controller that controls an operation of the power conversion leg. The power conversion leg operated in a master mode supplements (or sends) an insufficient (or excessive) power from (or to) a connection partner, when a voltage of the DC bus decreases (or increases) from a rated voltage. The power conversion leg operated in a designated power transmission/reception mode sends a designated power to the connection partner or receives the designated power from the connection partner according to a designation from a management server. The controller sets the mode of at least one of the power conversion legs to the master mode during the operation of the power router. | 10-15-2015 |
20160033979 | POWER SHARING SOLID-STATE RELAY - A solid-state switch, comprising at least one switch controller. At least one switch having a first terminal coupled to a power source, a second terminal coupled to the power source and a control terminal coupled to the switch controller and configured to selectively conduct and block current flow from the first terminal to the second terminal. At least one power converter coupled to the first terminal and the second terminal and configured to convert power from the power source from a first voltage level to a second voltage level and to provide power at the second voltage level to the switch controller. | 02-04-2016 |
20160049793 | HIGH SPEED CHARGE CONTROL FOR POWER SWITCHING DEVICES - Disclosed are systems, devices, apparatus, circuits, methods, and other implementations, including a system that includes one or more power switching devices that receive power delivered by a power unit, and a high-speed charge control circuit electrically coupled to the one or more power switching devices. The high-speed charge control circuit includes an optocoupler coupled to the power unit and further coupled to a first switching device of the high-speed charge control circuit, the first switching device actuated based on output of the optocoupler to establish an electrical path to discharge at least a portion of electrical charge present at least on the one or more power switching devices when power delivery from the power unit is stopped. | 02-18-2016 |
20160126032 | SWITCH APPARATUS FOR HIGH PRESSURE ENVIRONMENTS AND SYSTEM HAVING THE SAME - A switch apparatus is provided. The switch apparatus includes a switch main body, a switch actuator, a housing and at least one pressure compensator. The switch main body includes multiple of contacts. The switch actuator is coupled with the switch main body and configured to trigger movement of the contacts. The housing accommodates the switch main body and the switch actuator and is filled with insulation fluid. The pressure compensator is in fluid communication with the housing and has a variable volume to regulate pressure inside the housing equal to external pressure surrounding the housing. A system having the switch apparatus is also provided. | 05-05-2016 |
20160126950 | POWER OUTLET SOCKET SENSOR SWITCH - A mains electrical power outlet assembly; said power outlet assembly including at least one power outlet socket; said power outlet assembly including at least one sensing module, operating a power switching module and a microprocessor; said sensing module including a sensor responsive to proximity to said sensor of selected objects; proximity of a said selected object switching status of a said power outlet socket from a current state to another state. | 05-05-2016 |
20160134098 | SEMICONDUCTOR SWITCH AND POWER CONVERSION APPARATUS - According to one embodiment, a switch includes a first element with a first withstand voltage, a second element whose withstand voltage is lower than the first withstand voltage, a diode which is connected between a positive electrode of the first element and a positive electrode of the second element in such a manner that a direction from the positive electrode of the second element toward the positive electrode of the first element is a forward direction and whose withstand voltage is equal to the first withstand voltage, a negative electrode of the first element and a negative electrode of the second element being connected, and a circuit configured to apply a positive voltage to the positive terminal output a pulse lower than the first withstand voltage when the first element goes off. | 05-12-2016 |
20160155587 | Direct-Current Switching Device | 06-02-2016 |
20160164284 | SEMICONDUCTOR INTEGRATED CIRCUIT AND OPERATING METHOD THEREOF - A semiconductor integrated circuit and its operating method are provided. The present circuit has first and second supply terminals capable of supplying first and second power supply voltages respectively, an input voltage selection circuit coupled to the first and second supply terminals, and first and second power supply switches. The input voltage selection circuit includes a power-on reset circuit, an input voltage detection circuit and a control circuit. When the supply of the first or second power supply voltage to one of both supply terminals is detected upon completion of a power on reset operation, one of both power supply switches and the other thereof are controlled to on and off respectively. When the supply of both power supply voltages to both supply terminals is detected, the one thereof and the other thereof are respectively controlled to on and off according to the preset order of precedence. | 06-09-2016 |
20160172851 | DC POWER DISTRIBUTION SYSTEM | 06-16-2016 |
20160172856 | SIGNALING AND CONTROLLING A POWER GRID COUPLING ACTUATORS | 06-16-2016 |
20160189887 | BIDIRECTIONALLY BLOCKING ELECTRONIC SWITCH ARRANGEMENT - An electronic circuit includes first and second electronic switches each having a load path and a control node, a plurality of switch units each having a load path between a first load node and a second load node, and a plurality of drive units. The load paths of the electronic switches and switch units are connected in series to form a load path of the electronic circuit. A series circuit with the load paths of the switch units is connected between the load paths of the electronic switches. The load path of the electronic circuit includes a plurality of taps. Each drive unit is associated with one of the switch units, is coupled to at least two different taps of the plurality of taps, and is configured to drive the associated switch unit based on an electrical potential at one of the at least two different taps. | 06-30-2016 |
20160191048 | ROBUST SEMICONDUCTOR POWER DEVICES WITH DESIGN TO PROTECT TRANSISTOR CELLS WITH SLOWER SWITCHING SPEED - This invention discloses a power switch that includes a fast-switch semiconductor power device and a slow-switch semiconductor power device controllable to turn on and off a current transmitting therethrough. The slow-switch semiconductor power device further includes a ballasting resistor for increasing a device robustness of the slow switch semiconductor power device. In an exemplary embodiment, the fast-switch semiconductor power device includes a fast switch metal oxide semiconductor field effect transistor (MOSFET) and the slow-switch semiconductor power device includes a slow switch MOSFET wherein the slow switch MOSFET further includes a source ballasting resistor. | 06-30-2016 |
20160203930 | POWER FEED LINE SWITCHING CIRCUIT, BRANCHING DEVICE, SUBMARINE CABLE SYSTEM, AND POWER FEED LINE SWITCHING METHOD | 07-14-2016 |
20160254675 | SWITCHING MODULE | 09-01-2016 |
20160379771 | ELECTRONIC DEVICE FOR CONTROLLING HIGH-VOLTAGE WITH MULTIPLE LOW-VOLTAGE SWITCHES - An electronic device is disclosed for controlling a high-voltage power source with multiple low-voltage switches. The electronic device includes a low-voltage DC power supply that allows for low-voltage wiring and components to be used to control the high-voltage power source using multiple low-voltage switches. The electronic device includes a single pulse generator that generates a pulse signal upon activation of any one of the multiple switches. The pulse signal activates a bistable circuit controller that is coupled the a high-voltage electronic switch to control high-voltage power to the load. | 12-29-2016 |