09th week of 2013 patent applcation highlights part 12 |
Patent application number | Title | Published |
20130049541 | SURFACE MOUNT TYPE PIEZOELECTRIC DEVICE - A piezoelectric device includes a rectangular base plate having a first face where a pair of mounting terminals are formed, a second face opposite to the first face, where a bonding face is formed in a circumference, and a pair of connecting electrodes formed in the bonding face; a rectangular piezoelectric vibrating piece having a pair of excitation electrodes and lead electrodes extracted from a pair of the excitation electrodes, so that the lead electrode is fixed to the connecting electrode using a conductive adhesive; a lid plate that covers the piezoelectric vibrating piece; and a ring-shaped encapsulating material arranged in a ring shape between the bonding face and the lid plate to encapsulate the base plate and the lid plate. The connecting electrode is formed in a comb-tooth shape as seen from a normal direction of the second face to increase a lateral length of the connecting electrode. | 2013-02-28 |
20130049542 | OSCILLATION DEVICE AND METHOD FOR MANUFACTURING OSCILLATION DEVICE - An oscillation device which contributes to the demand for downsizing/miniaturization and commercial production, and provides highly reliable oscillation frequency is provided. The oscillation device includes a base substrate provided with an oscillation member, a lid member that contains the oscillation member in a cavity, an adhesion layer that has a first melting point and connects the base substrate with the lid member, and a metal layer that has a second melting point higher than the first melting point and covers the base substrate, the adhesion layer and the lid member. | 2013-02-28 |
20130049545 | RESONATOR DEVICE INCLUDING ELECTRODES WITH BURIED TEMPERATURE COMPENSATING LAYERS - An acoustic resonator includes a substrate and a first composite electrode disposed over the substrate. The first composite electrode includes first and second electrically conductive layers and a first temperature compensating layer disposed between the first and second electrically conductive layers. The second electrically conductive layer forms a first electrical contact with the first electrically conductive layer on at least one side of the first temperature compensating layer, and the first electrical contact electrically shorts a first capacitive component of the first temperature compensating layer. | 2013-02-28 |
20130049546 | SPINDLE MOTOR - Disclosed herein is a spindle motor including: a shaft insertedly mounted so as to be perpendicular to an upper side portion; a sleeve receiving the shaft therein to thereby rotatably support the shaft and forming a space between the sleeve and the shaft to thereby be spaced apart from the shaft so as not to contact the shaft; a holder having the sleeve mounted in an inner portion thereof and having a lower portion mounted on an upper portion of a plate; and the plate integrally supporting lower portions of the shaft and the sleeve and including connecting parts connecting the holder and the plate to each other and fixing parts fixing positions of the holder and the plate so that a lower surface of the holder is coupled thereto. | 2013-02-28 |
20130049547 | STATOR FOR BICYCLE GENERATOR HUB - A stator is provided for a bicycle generator hub. The stator comprises a coil bobbin and a plurality of first and second yokes. The first and second yokes are radially arranged on opposite axial ends of the bobbin. Each of the first and second yokes includes a magnetic pole section extending along an axial direction of the coil bobbin and facing the external circumferential surface of the coil bobbin, an insertion section t extending along the axial direction of the coil bobbin and facing the internal circumferential surface of the coil bobbin, and a connecting section extending radial direction of the coil bobbin and connecting the first magnetic pole section and the first insertion section together. The insertion sections of the first yokes have first end portions that abut two corresponding ones of second end portion of the insertion sections of the second yokes. | 2013-02-28 |
20130049548 | STATOR YOKE FOR BICYCLE GENERATOR HUB - A stator yoke is provided for a bicycle generator hub. The stator yoke includes a first tubular section and a plurality of first pole sections. The first tubular section has a first axial end and a second axial end. The first pole sections are integrally formed with the first tubular section as a one-piece, unitary member. Each of the first pole sections includes a first radially protruding section that extends from the first axial end of the first tubular section in a radial direction of the first tubular section, and a first axially protruding section that extends from the first protruding section in an axial direction of the first tubular section toward the second axial end of the first tubular section. | 2013-02-28 |
20130049551 | MOTOR AND DISK DRIVE APPARATUS - A rotary unit of a motor includes a tubular hub portion. A bearing mechanism of the motor includes a bearing portion positioned radially inward of the hub portion. A stationary unit of the motor includes a stator fixing portion positioned inward of the hub portion and higher than a lower end of the hub portion. A cylinder gap is defined between the hub portion and an upper section of the bearing portion. A first communication gap is defined between a lower section of the hub portion and an upper section of the stator fixing portion. A second communication gap is defined between the lower end of the hub portion and a radial inner section of the stator core. | 2013-02-28 |
20130049552 | REDUCING ANGULAR CLEARANCE BETWEEN A MOTOR SHAFT AND AN ANGULAR POSITION SENSOR - An electric motor assembly includes a motor shaft rotatable about a longitudinal axis, an angular position sensor, and a deformable pin. The motor shaft has an axial keyway formed therein, and the axial keyway has a nominal keyway dimension. The angular position is coupled to the motor shaft to rotate with the motor shaft. The angular position sensor has an axial key to fit within the axial keyway of the motor shaft, and the axial key has a nominal key dimension that is less than the nominal keyway dimension. The deformable pin is located in the axial keyway under compression between the axial key and the motor shaft to inhibit rotational shifting of the angular position sensor relative to the motor shaft. | 2013-02-28 |
20130049553 | SPINDLE MOTOR - Disclosed herein is a spindle motor including: a rotor part including a shaft and a rotor case coupled to the shaft to rotate integrally with the shaft, having a rotor magnet coupled to an inner side thereof, and having a disk mounted on one surface thereof; and a stator part including a base plate having the rotor part coupled thereto, a bearing part rotatably supporting the shaft, and an armature having a stator core part coupled to an outer peripheral surface of the bearing part so as to face the rotor magnet and a coil wound several times around the stator core part, wherein the stator core part is formed by stacking a plurality of stator cores having different thickness ratios. | 2013-02-28 |
20130049554 | DIFFERENTIAL RACK AND PINION STORAGE MEDIA MOVER ASSEMBLY - A combination comprises a first rack ( | 2013-02-28 |
20130049557 | DEVICE HOUSING AND METHOD FOR MAKING THE DEVICE HOUSING - A device housing includes a stainless steel substrate having a first metallic coating and a second metallic coating formed thereon and in that order. The stainless steel substrate has at least one recess defined in an outer surface. The first metallic coating and a second metallic coating have different colors. The first metallic coating is left exposed in the recesses but covered elsewhere by the second metallic coating to form a desired symbol, logo, or pattern on the device housing. A method for making the present device housing also is provided. | 2013-02-28 |
20130049558 | RACK MECHANISM FOR SERVER - A rack mechanism includes a sliding rail, a cabinet, three first fixed beams, a guide rail, two rods, and four roller assemblies. The cabinet includes a top portion, which includes a lid defining four holes. The bottom portion slidably connected to the sliding rail. The three first fixed beams parallelly arranged above the top portion. The guide rail is fixed to the first fixed beams. The two rods are arranged under the lid. Each two of the four roller assemblies are respectively connected to the two rods. Each roller assembly includes a shelf and a pulley. One end of the shelf passes through one of the holes to fix the shelf to the rod. The pulley is arranged to the other end of the shelf. The pulley rolls along the guide rails when the bottom portion slides along the sliding rails. | 2013-02-28 |
20130049559 | DOOR FOR A DOMESTIC APPLIANCE - The present invention relates to a door for a domestic appliance, in particular for a cooking oven. The door comprises two door columns ( | 2013-02-28 |
20130049560 | Foldable Drawer Assembly - A foldable drawer assembly includes a side plate association and a bottom plate selectively connecting with the side plate association. The side plate association includes a plurality of plates pivotally connected with one another. A storage space is enclosed with the plurality of plates of the side plate association. The side plate association is operable between an operative state and a stored state. When the side plate association is in the operative state, a shape of cross-section of the storage space corresponded to a shape of cross-section of the bottom plate. When the side plate association is in the storage state, a measure of area of cross-section of the storage space is less than a measure of area of the bottom plate. | 2013-02-28 |
20130049561 | MOUNTING SYSTEM FOR A BANK OF STORAGE UNITS AND THE COMBINATION OF A BANK OF STORAGE UNITS CONNECTED TO THE MOUNTING SYSTEM - A mounting system for mounting a bank of storage units in side-by-side relationship above a ground surface includes an elongate member having an elongate top wall, having side edges and at least one leg section extending downwardly from one of the side edges. Each of the at least one leg section includes an elongate flange at a distal end that is contiguous to the ground. The elongate top wall has an elongate dimension between opposed ends for receiving a bank of storage units in side-by-side relationship on an upper surface thereof. The top wall includes attachment members for cooperating with a mounting plate for attaching the bank of storage units in side-by-side relationship to the top wall. The elongate flanges include a plurality of leveling adjuster passages for receiving leveling adjusters therethrough and a plurality of anchor passages for receiving anchoring members therethrough. The plurality of adjuster passages on each flange includes leveling adjuster passages located adjacent each elongate end of the flanges for receiving leveling adjuster members therethrough to engage a ground surface and provide a leveling function. A plurality of anchor passages is adapted to receive anchoring members insertable into the ground surface for securing the elongate member to the ground surface. The invention also resides in the combination of the mounting system and a bank of lockers attached to it, as well as to storage units including a mounting plate as part of its construction. | 2013-02-28 |
20130049562 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a sub hinge connecting a main door to a sub door, and a main hinge connecting the main door to a main body of the refrigerator. The sub hinge is not connected to the main hinge, to prevent interference during door movement and to minimize leakage of cool air. A single latch assembly may allow both the main door and the sub door to be smoothly opened and secured, to reduce manufacturing costs and enhance reliability with respect to a simultaneous operation of the latch. | 2013-02-28 |
20130049563 | LIGHT EMITTING DEVICE PACKAGE, LIGHT SOURCE MODULE, AND LIGHTING SYSTEM INCLUDING THE SAME - Disclosed is a light emitting device package. The light emitting device includes a package body having a cavity defined by a sidewall and a bottom surface, a light emitting device disposed in the cavity, a radiator inserted into the package body and disposed below the light emitting device, and a second electrode pattern disposed around the radiator and electrically connected to the light emitting device via wire bonding. The second electrode pattern includes a first region to which a wire is bonded, and a second region connected to the first region, and a width of the first region differs from a width of the second region. | 2013-02-28 |
20130049564 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT - Embodiments provide a light emitting device package including a package body having a through-hole; a radiator disposed in the through-hole and including an alloy layer having Cu; and a light emitting device disposed on the radiator, wherein the alloy layer includes at least one of W or Mo, and wherein the package body includes cavity including a sidewall and a bottom surface, and wherein the through-hole is formed in the bottom surface. | 2013-02-28 |
20130049571 | LIGHT EMITTING MATERIAL, INK COMPOSITION, THIN FILM, LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING LIGHT EMITTING DEVICE - An object of the invention is to provide a light emitting material which can improve the luminous lifetime of a light emitting device by being included in a light emitting layer of the light emitting device. A means for achieving the object is a light emitting material characterized by comprising wherein the material comprises a conjugated polymer having a conjugated part and a blue light emitting compound having a blue light emitting part and satisfies the following formula (1): | 2013-02-28 |
20130049572 | BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - A backlight assembly includes a light emitting portion, a chromaticity converter and a light guide plate. The light emitting portion generates a first light. The chromaticity converter receives the first light, and converts a chromaticity of the first light to generate a uniform light having a uniform chromaticity. The light guide plate includes an incident surface to which the uniform light is incident, and a light exiting surface guiding the uniform light provided from the incident surface and emitting the uniform light. Accordingly, a display quality of a display apparatus may be enhanced. | 2013-02-28 |
20130049573 | OPTICAL FILM AND LIGHT EMITTING DEVICE - An optical film and a light emitting device are provided. The optical film includes a substrate, a resin layer, and a plurality of porous particles. The resin layer is located on the substrate. The porous particles are distributed in the resin layer, and each of the porous particles includes a particle body and a plurality of holes. A refractive index of the particle body is different from a refractive index of the resin layer, and the refractive index of the particle body is different from a refractive index of air in the holes. The light emitting device includes a light emitting element and an optical film. The light emitting element has a light emitting surface, and the optical film is located on the light emitting surface of the light emitting element. | 2013-02-28 |
20130049574 | LIGHT EMITTING DEVICE - A light emitting device is disclosed. The light emitting device may include a light emitting diode (LED) for emitting light and phosphor adjacent to the LED. The phosphor may be excitable by light emitted by the LED and may include a first compound having a host lattice comprising first ions and oxygen. In one embodiment, the host lattice may include silicon, the copper ions may be divalent copper ions and first compound may have an Olivin crystal structure, a β-K2SO4 crystal structure, a trigonal Glaserite (K | 2013-02-28 |
20130049577 | Quinoxaline Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Quinoxaline Derivative - An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage. Still another object is to provide a light-emitting element with low power consumption. Yet another object is to provide a light-emitting device and an electronic device each having low power consumption by using such a light-emitting element. A quinoxaline derivative is provided which has a structure in which at least one of carbon at a 2-position and carbon at a 3-position of quinoxaline, and carbon of a pyridine ring are bound via an arylene group. | 2013-02-28 |
20130049578 | Organic Electroluminescent Device - An organic electroluminescent device having a plurality of pixels, the device comprising: an anode formed on a substrate; an organic electroluminescent layer formed on the anode in each well of a well-defining layer to form the plurality of pixels; a cathode layer on the electroluminescent layer and a layer of metal on the top surface of the well-defining layer; wherein a conductive layer is deposited over the cathode layer and the metal layer to electrically connect the cathode layer on the electroluminescent layer with the metal layer on the top surface of the well-defining layer. | 2013-02-28 |
20130049581 | NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING THE SAME - An organic compound represented by the following general formula [1] is provided. In the general formula [1], R | 2013-02-28 |
20130049582 | PORTABLE LIGHTING DEVICE - A portable electronic lighting device and a method for controlling a portable lighting device are described. The device has a switched-mode power supply, a light source, a high frequency switch, a controller controlling the operation of the light source and a user interface for inputting commands to the controller. A DC power source has a negative pole that is connected by only one single electric contact with the lighting device tail. The method for controlling a portable lighting device includes connecting a DC power source, an inductor, a light source, a high frequency switch and a resistor in series, measuring a voltage across the resistor, and controlling the high frequency switch dependent on the voltage measured across the resistor. | 2013-02-28 |
20130049583 | INDICATOR LAMP LIGHTING CIRCUIT FOR VEHICLE - If a state to be informed occurs during an on-state of an ignition switch of a vehicle, a first and a second switching transistor are turned on by a control signal of a signal line, and an indicator lamp is lighted by power from a meter power supply. In addition, a third and a fourth switching transistor are turned on by a sub control signal of the signal line during an off-state of the ignition switch, and the indicator lamp is lighted by power from a continuous power supply. | 2013-02-28 |
20130049584 | System and Method for Non-Linear Dimming of a Light Source - In one embodiment, a light dimming module is disclosed. The light dimming module has a dimming engine coupled to a digital input interface and an output interface. The dimming engine is configured to provide a N-segment piecewise linear exponential digital control signal, and the output interface is configured to control the intensity of a light source. | 2013-02-28 |
20130049585 | DAYTIME RUNNING LAME (DRL) CONTROL SYSTEM - A daytime running lamp (DRL) controller for controlling power to a light source of a vehicle includes a switch, an engine starting-up detector and a switch control circuit. The switch is coupled to the light source. The engine starting-up detector is coupled to the switch, and generates a trigger signal if the engine is starting up. The switch control circuit is coupled to the switch and the engine starting-up detector, and includes a controller. The controller generates a first control signal to switch on the switch to power on the light source responsive to the trigger signal, and keeps outputting the first control signal if a holding signal is generated within a first time period after the trigger signal is received. The first time period is a time period during which the controller is reset after receiving the trigger signal. | 2013-02-28 |
20130049586 | LIGHTING DEVICE, HEADLAMP LIGHTING DEVICE, AND HEADLAMP UNIT AND VEHICLE HAVING SAME - A lighting device includes: a power conversion unit which converts a direct current (DC) power into a power required by a load; an output current detection unit which detects an output current of the power conversion unit; and a source voltage detection unit which detects a source voltage. Further, the lighting device includes an operation unit which calculates an output current command value so as not to exceed an upper limit of the output current command value set according to a resistance value of an externally connected resistor; and a control unit which controls the power conversion unit such that the output current thereof the power conversion unit becomes the output current command value. | 2013-02-28 |
20130049595 | LED LIGHTING APPARATUS WITH A HIGH EFFICIENCY CONVECTIVE HEAT SINK - An LED lighting apparatus including an LED chip having at least one LED, a light reflector configured to direct light emitted by the LED at a predetermined direction and dispersion angle, a heat sink including a mounting base and cooling fins extending from a first side of the mounting base and with the LED chip secured to an opposite second side of the mounting base, a cooling fan attached to the heat sink adjacent distal ends of the plurality of fins, an electrical regulator electrically connected to the cooling fan to provide regulated power to the cooling fan, an LED driver electrically connected to the LED chip, and a thermal limit switch mounted to the heat sink and configured to cut off power to the LED chip if a sensed temperature of the heat sink exceeds a temperature set point to thereby provide thermal protection to the LED chip. | 2013-02-28 |
20130049596 | SYSTEM FOR OPERATING AN LED LIGHT SOURCE - The invention relates to a system for operating an LED-based light source which system comprises an operating device that is designed to transform the input-side mains voltage to a supply voltage, and a control unit for the light source, which control unit is connected to the operating device and operates the LEDs using the supply voltage obtained from the operating device. The control unit is arranged in a module which is designed as a unit separate from the light source and which is connected thereto by means of a preferably flexible cable. | 2013-02-28 |
20130049599 | Driver Circuit for Efficiently Driving a Large Number of LEDs - A circuit can be used for controlling a plurality of LEDs coupled in series. A switching converter operates as a current source coupled to the plurality of LEDs to provide a constant load current thereto. The switching converter includes an inductor coupled in series with the plurality of LEDs such that the same load current flows through the inductor and the plurality of LEDs. No substantial capacitance is coupled between the inductor and the plurality of LEDs. A floating driver circuit is coupled in parallel with each individual LED of the plurality of LEDs. The floating driver circuit is configured to fully or partially take over the load current thereby bypassing the respective LED in accordance with a respective modulated input signal to control the intensity of the light emitted by the LED. | 2013-02-28 |
20130049600 | LIGHTING DEVICE AND METHOD OF CONTROLLING LIGHT EMITTED THEREBY - A lighting device and a method of controlling a light emitted thereby are disclosed. A lighting device including light emitting units configured of a plurality of light emitting diodes connected with each other in series according to the present invention may include a rectifier unit configured to rectify an alternation current voltage to supply the rectified voltage to each of the light emitting units, a control unit configured to control on and off of each light emitting unit according to the input voltage and light emitting units configured to be on and off based on the control of the control unit, wherein a first light emitting unit and a second light emitting unit are connected with each other in series, and the first light emitting unit and a third light emitting unit are connected with each other in parallel. | 2013-02-28 |
20130049605 | METHODS FOR COMMUNICATION BETWEEN A LIGHTING NODE AND A CONTROLLER - A method for communication between a lighting node and a controller is described. One embodiment of the method includes transmitting a command from the controller based on a target illumination profile stored on the controller to the lighting node utilizing a controller radio device and receiving the command from the controller at the lighting node utilizing a node radio device. The method may also include generating illumination having a spectral content from the lighting node utilizing at least a light emitting diode; and receiving the spectral content from the lighting node at the controller utilizing an optical sensor. | 2013-02-28 |
20130049606 | METHOD FOR OPEN-LOOP AND CLOSED-LOOP CONTROL OF A LIGHTING BUSWAY - A method for open-loop and closed-loop control of a lighting busway with a primary luminaire and at least one secondary luminaire for an interior space, involves measuring a brightness at the location of the primary luminaire, determining a primary ambient light percentage for the primary luminaire, determining a secondary ambient light percentage for at least one secondary luminaire based on the primary ambient light percentage, and determining a secondary manipulated variable for at least one secondary luminaire based on the secondary ambient light percentage and a setpoint value for this secondary luminaire. | 2013-02-28 |
20130049607 | CONTROLLER, METHOD OF CONTROLLING ILLUMINATION, AND NETWORK SYSTEM - A controller includes a communication interface for communicating with at least one illumination and a plurality of home appliances; a memory for storing a corresponding relationship between the plurality of home appliances and a lighting up scheme of the illumination; and a processor for obtaining, upon receiving a signal from one of the plurality of home appliances indicating the state thereof, a lighting up scheme corresponding to the home appliance on the basis of the corresponding relationship, using the communication interface, and for instructing at least one illumination to light up in accordance with the lighting up scheme. | 2013-02-28 |
20130049608 | Adaptive Optics System for Harmonization and Balanced Lighting in Information Displays - A system for adaptively controlling and adjusting the output and balance of multiple integrated illuminated panels may include a plurality of illumination sources in operative connection with a plurality of integrated illuminated panels, the plurality of illumination sources being disposed within a vehicle cockpit. The system may also include a dimming control configured to provide manual adjustment of brightness of the plurality of illumination sources, and a digital controller configured to automatically harmonize chromaticity and brightness of the plurality of illumination sources based on detected ambient lighting conditions. | 2013-02-28 |
20130049613 | RESONANT NETWORK FOR REDUCTION OF FLICKER PERCEPTION IN SOLID STATE LIGHTING SYSTEMS - An apparatus and method for reducing the perception of flicker of solid state light sources. An alternating current (AC) signal is passed through an AC conditioning circuit and a passive resonating circuit before being supplied to a string of solid state light sources, such as light emitting diodes. | 2013-02-28 |
20130049614 | LED DRIVER APPARATUS - A Light Emitting Diode (LED) driver apparatus is provided. The LED driver apparatus includes: a Pulse Width Modulation (PWM) signal generator configured to generate a PWM signal, a DC-DC converter configured to provide a driving voltage of a plurality of LED arrays by using the generated PWM signal, and a sensor configured to determine whether at least one LED array among the plurality of LED arrays is in an open state in response to the driving voltage being higher than or equal to a preset first reference voltage, and the preset first reference voltage is higher than the driving voltage applied when the plurality of LED arrays are each in a working state. | 2013-02-28 |
20130049617 | LOAD COMPENSATION FOR AN ELECTRONIC TRANSFORMER IN A LED ILLUMINATION SYSTEM - The invention relates to a light emitting diode (LED) illumination system, and more particularly, to systems, devices and methods of rapidly ramping up a transformer current and a LED driver current by coupling a transformer load compensation circuitry to an output of an electronic transformer. A bridge rectifier is coupled to the electronic transformer and provides full-wave rectification to an AC supply at the output of the electronic transformer. The load compensation circuitry senses the rectified AC supply and compensates the load of the electronic transformer, such that the electronic transformer starts up properly when the level of the signal envelope is below a threshold voltage. Therefore, the load compensation circuit is active for a programmed time during which the LED driver current has been increased to a sufficient value to keep the electronic transformer operational. | 2013-02-28 |
20130049618 | ADAPTIVE CIRCUIT - The invention describes an adaptive circuit ( | 2013-02-28 |
20130049623 | LED DRIVE CIRCUIT AND LED DRIVING METHOD - An LED drive circuit of the present invention carries out, by use of a DC-to-DC converter, light control of an LED. The light control is carried out, in a region where a light control level is equal to or greater than a certain light control level, by a DC light control method for adjusting a pulse height of an LED drive current. The light control is carried out, in a region where a light control level is equal to or less than the certain light control level, by a PDM light control method for adjusting an off period of oscillation of the DC-to-DC converter. | 2013-02-28 |
20130049624 | Lighting Device - A lighting device has a power-factor correction circuit | 2013-02-28 |
20130049625 | Discharge-Lamp Lighting Device - A lighting device has a direct-current power generation circuit, a rectangular-wave generation circuit, a pulse generating circuit, lamp-voltage detection means, and pulse-generation command means. The direct-current power generation circuit generates direct-current power from external power. The rectangular-wave generation circuit converts the direct-current power to rectangular-wave alternating-current power. The pulse generating circuit superposes high-voltage pulses on the rectangular-wave power output from the rectangular-wave generation circuit and starts a discharge lamp. The lamp-voltage detection means detects, in digital form, a lamp voltage supplied to the discharge lamp. The pulse-generation command means issues a pulse generation command to the pulse generating circuit when the value detected by the lamp-voltage detection means reaches a predetermined no-load-voltage determination level. | 2013-02-28 |
20130049626 | METHOD AND APPARATUS FOR LED LIGHTING - Aspects of the disclosure provide a circuit. The circuit includes a first switch, a second switch and a controller. The first switch is switched on and off to allow a boost circuit to transfer electric energy from an input power supply to a capacitor to generate an intermediate power supply having a higher voltage than the input power supply. The second switch is switched on and off to allow a buck circuit to provide a driving voltage based on the intermediate power supply to drive a load device, and to regulate a current to the load device. The controller is configured to provide a first signal to the first switch and a second signal to the second switch to switch on and off the first switch and the second switch. | 2013-02-28 |
20130049627 | SEGMENTED ELECTRONIC ARC LAMP BALLAST - Described herein are segmented electronic ballasts for a high power are lamp, such as a High Intensity Discharge (“HID”) lamp, capable of drop-in replacement of a pre-existing magnetic ballast and methods of use thereof. In certain aspects, the segmented electronic ballasts described herein include a first housing containing a driver circuit configured to receive electrical power from a source of electrical power and configured to output a conditioned power signal; and also include a second housing containing a striker circuit connected to the driver circuit and configured to receive the conditioned power signal and ignite the lamp. In certain aspects, the methods described herein include removing a transformer of the pre-existing magnetic ballast from a transformer mounting position; and also include fixing the first housing to the transformer mounting position. | 2013-02-28 |
20130049628 | Current-Switching LED Driver Using DAC to Ramp Bypass Currents to Accelerate Switching Speed and Reduce Ripple - A light-emitting diode (LED) driver provides faster rise and fall times for LED current to reduce image sticking and other interference. A standard DC-DC converter provides a sum current that is slowly ramped up and down by a bypass current digital-to-analog converter (DAC). A digital value to the bypass current DAC is ramped up or down before an LED current is turned on or off. When the LED current is turned on, current is shifted from a bypass path to a path through the LED, maintaining a constant sum current from the DC-DC converter. When a different LED is turned on, current is shifted from one LED's path to the other LED's path. Separate LED current DAC's in each LED path and in the bypass path can share the sum current with digital precision. Using a single DAC for the sum current and switches in each path reduces cost. | 2013-02-28 |
20130049635 | Lighting System for Growing Plants - A lighting system includes a first LED array which includes a plurality of LED sub-arrays, and a plurality of inputs operatively coupled to a corresponding LED sub-array through a controller. The intensity of light emitted by the LED sub-arrays is adjustable in response to adjusting input signals provide by the inputs. In this way, the intensity of light emitted by the LED sub-arrays is adjustable, in response to adjusting the input signals, to drive a wavelength spectrum of the first LED array to match the action spectrum of a physiological activity of a plant. | 2013-02-28 |
20130049636 | Electronic Device for Controlling Lighting Effects Using an Audio File - An electronic device is provided, which comprises one or more light groupings, each light grouping including one or more light sources, and audio processing circuitry adapted for interpreting an audio file. The audio file includes one or more instrument definitions exclusively assigned to a corresponding one of the one or more light groupings. The audio file further includes one or more note definitions associated with at least one of the one or more instrument definitions exclusively assigned to the corresponding one of the one or more light groupings, where a value associated with each of the one or more note definitions controls the color displayed by the one or more light sources within the associated exclusively assigned light grouping. In some instances, one or more commands for the instrument definitions assigned to the corresponding one of the one or more light groupings can include commands for at least one of volume definitions, note velocity definitions and modulation definitions, wherein the light intensity of the color displayed by the one or more light sources is controlled in accordance with the at least one of the volume definitions, note velocity definitions and modulation definitions. In some instances, the note definitions can include relative start times and end times, which when associated with the instrument definitions assigned to each of the one or more lighting groups affects the start time and the end time of the illumination of the light sources within the corresponding light grouping. | 2013-02-28 |
20130049639 | LIGHT SOURCE APPARATUS - A constant-current power source unit has a variable power source which can adjust an output voltage. To detect a voltage applied to the gas discharge tube, a voltage detection unit is provided. A power source controlling unit configured to control the voltage by adding a predetermined voltage to the voltage taken in from the voltage detection unit after the electric discharge is started in the gas discharge tube. | 2013-02-28 |
20130049640 | MIRROR ELECTROLUMINESCENT DISPLAY PANEL - A mirror electroluminescent display panel includes an array substrate, a plurality of driving devices, a plurality of electroluminescent devices, and a cover substrate. The driving devices and the electroluminescent devices are disposed on the array substrate. Each electroluminescent device includes a first electrode electrically connected to the corresponding driving device, a light-emitting layer disposed on the first electrode, and a second electrode disposed on the light-emitting layer. The cover substrate and the array substrate are disposed oppositely. The cover substrate has a plurality of transmission regions, and a reflection region disposed between adjacent transmission regions, and each of the transmission regions is corresponding to each of the light-emitting layers, respectively. | 2013-02-28 |
20130049645 | APPARATUS AND METHOD FOR CONTROLLING A FLEXIBLE DISPLAY - A flexible display control apparatus includes a direct current-to-alternating current (DC-AC) converter to convert a DC driving voltage to an AC driving voltage having a period, a controller to determine whether to provide the DC driving voltage or the AC driving voltage to an ionic layer, a driving unit to drive cells included in the ionic layer based on the provided DC driving voltage or the AC driving voltage, and a display having a shape that is modified to correspond to an input according to the driven cells. | 2013-02-28 |
20130049646 | ENERGY CONVERSION DEVICE AND METHODS OF MANUFACTURING AND OPERATING THE SAME - An energy conversion device, and methods of manufacturing and operating the same. The energy conversion device includes: a monolithic single-crystal silicon layer that includes a plurality of doping regions; a vibrator that is disposed in the single-crystal silicon layer and is connected to a doping region of the plurality of doping regions; a first diode that is a PN junction diode and allows an input signal applied to the vibrator to pass therethrough; and a second diode that is a PN junction diode and allows a signal output from the vibrator to pass therethrough. | 2013-02-28 |
20130049647 | Force Distribution Method for Stage Systems Utilizing Dual Actuators - According to one aspect, a method for controlling a stage that is a part of a stage apparatus and is coupled to a voice coil motor (VCM) and an EI-core actuator arrangement includes driving the stage, identifying a frequency associated with the stage, and determining whether the frequency is below a frequency setpoint. The method also includes providing a first control force on the stage using the EI-core actuator arrangement when it is determined that the frequency is below the frequency setpoint, and providing the first control force on the stage using the VCM when it is determined that the frequency is not below the frequency setpoint. | 2013-02-28 |
20130049648 | DIRECT CURRENT BUS MANAGEMENT CONTROLLER - A direct current bus management system can include a power management and distribution unit, having a source management section, a bus management section coupled to the source management section, a load management section coupled to the bus management section, a DC bus coupled to the power management and distribution unit, a plurality of DC sources coupled to the source management section and a plurality of loads coupled to the load management section, wherein the bus management section is configured to reconfigure excess DC power on the DC bus from the DC inputs from the plurality of DC sources based on a plurality of priorities, a plurality of feedback signals and a plurality of system parameters. | 2013-02-28 |
20130049663 | CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE - When a vehicle collision is detected, a electric connection between a power supply and an input stage of an inverter is switched to the disconnected condition. Then, when a rotation speed of an alternating current motor is higher than an allowable rotation speed or a terminal voltage of a storage unit provided at the input stage is higher than an allowable terminal voltage, an exciting current command value is set at a value other than zero and a torque current command value is set at zero, and when the rotation speed is equal to or lower than the allowable rotation speed and the terminal voltage is equal to or lower than the allowable terminal voltage, both command values are set at zero. An exciting current component and a torque current component of an alternating current supplied from the inverter to the motor are controlled according to the set command values. | 2013-02-28 |
20130049664 | Method of Automatically Controlling a Motorized Window Treatment While Minimizing Occupant Distractions - A load control system provides for automatically controlling a position of a motorized window treatment to control the amount of sunlight entering a space of a building through a window located in a façade of the building in order to control a sunlight penetration distance within the space and minimize occupant distractions. The load control system automatically generates a timeclock schedule having a number of timeclock events for controlling the position of the motorized window treatment during the present day. A user is able to select a desired maximum sunlight penetration distance for the space and a minimum time period that may occur between any two consecutive timeclock events. In addition, a maximum number of movements that may occur during the timeclock schedule may also be entered. The load control system uses these inputs to determine event times and corresponding positions of the motorized window treatment for each timeclock event. | 2013-02-28 |
20130049665 | DRIVE SYSTEM FOR ROTATING ELECTRIC MACHINE - A MG drive computer switches off system relays when a collision or a possibility of collision is detected. The computer also executes the revolution speed reduction control for reducing the revolution speed of a rotating electric machine and the discharge control for discharging a smoothing capacitor. In the revolution speed reduction control, the second control for switching on switching elements of three phases of an upper arm or lower arm of an inverter and switching off all other switching elements is performed when the revolution speed of the rotating electric machine is equal to or less than a second threshold. When the revolution speed is higher than the second threshold, the first control for switching on a switching element of one phase of the upper arm or lower arm and switching off other switching elements is performed. | 2013-02-28 |
20130049666 | DEVICE AND METHOD FOR CONTROLLING MOTOR - In order to lower electromagnetic noise, normally, a carrier frequency of a inverter or controlling drive of a motor mounted on an electrically powered vehicle is changed periodically or randomly within a first frequency range set in advance, as the time elapses. While a vehicle speed is low, the carrier frequency is changed periodically or randomly within a second frequency range set in advance to be wider than the first frequency range and to be equal in central frequency to the first frequency range, as the time elapses. The second frequency range is set to include a resonant frequency of a specific mechanical oscillation system higher in electromagnetic noise generated at a natural resonant frequency, among a plurality of mechanical oscillation systems formed by equipment mounted on the electrically powered vehicle. On the other hand, the first frequency range is set not to include the resonant frequency. | 2013-02-28 |
20130049669 | METHOD OF CONTROLLING POSITION OF SEAT USING SINGLE HALL SENSOR - A method of controlling a position of a seat using a single hall sensor. A pulse is output from the hall sensor in response to the rotation of the motor when displacing the seat forward or backward. The rotation of the motor is controlled such that the pulse output from the hall sensor is put in a sensor error state. It is determined whether or not the pulse output from the hall sensor is in the sensor error state. A sensor error is generated if the pulse output from the hall sensor is not in the sensor error state in the error state check step. | 2013-02-28 |
20130049670 | INTEGRATED SERVO SYSTEM - An integrated servo system and a method of controlling a motor is provided. The integrated servo system includes a position detector which determines original position data of a motor and a position signal processor which determines a position of the motor based on the determined position data. The integrated servo system further includes a servo controller circuit which controls the motor based on the determined position data and a parallel bus through which the determined position data is transmitted from the position signal processor to the servo controller circuit. | 2013-02-28 |
20130049671 | Base Vibration Attenuation and Load Tracking in Mechanical Systems - A hybrid controller for a mechanical system includes an actuator configured to position a load. A vibration attenuation controller produces a vibration attenuation control signal in response to an input signal for the mechanical system. A tracking controller configured produces a tracking control signal in response to the input signal. In response to an output signal from the mechanical system, either the vibration attenuation control signal or the tracking control signal is switched as a control signal for the mechanical system to reduce both vibration in the mechanical system and improve tracking the load. | 2013-02-28 |
20130049672 | Mobile Telephone Wireless Earpiece Storage and Charging Device - Systems, methods and apparatus for providing mobile telephone wireless earpiece storage and charging are disclosed. In an aspect of the present invention, an apparatus includes a belt attachment member, a body coupled to the belt attachment member, and a coupling member coupled to the body and capable of removably securing a portable wireless device such as a Bluetooth earpiece. | 2013-02-28 |
20130049673 | PHOTO-VOLTAIC ARRAY FED SWITCHED CAPACITOR DC-DC CONVERTER BASED BATTERY CHARGING FOR LI-ION BATTERIES - Technologies generally described herein relate to a cell balancing and charging scheme for a serially coupled Li-Ion battery pack supported by a photovoltaic cell array power source. A switched capacitor DC-DC converter and a cell monitoring approach may be used to charge and cell balance the battery pack. When one of the cells falls below a predefined voltage, a capacitor (charged by the photovoltaic array) may supply current to bring the voltage to the predefined point. Continuous monitoring for the cells during charging and discharging may ensure cell voltage changes beyond the predefined limit are detected timely. Cell balancing may be performed even in the absence of photovoltaic (PV) array illumination. | 2013-02-28 |
20130049674 | INTEGRATED PHOTO VOLTAIC SOLAR PLANT AND ELECTRIC VEHICLE CHARGING STATION AND METHOD OF OPERATION - Systems, methods and apparatus are disclosed for using renewable energy sources as broadband AC to DC conversion. In one aspect, an apparatus configured for charging an electric vehicle is provided. The apparatus includes a power supply circuit configured to convert direct current received from a renewable power source into alternating current. The alternating current is having a frequency. The apparatus further includes a power transmit circuit configured to receive the alternating current from the power supply circuit and to provide power to charge the electric vehicle using the alternating current. The power transmit circuit is further configured to substantially resonate at the frequency of the alternating current. | 2013-02-28 |
20130049675 | OUTPUT CONNECTOR EQUIPPED BATTERY PACK, BATTERY-PACK-AND-BATTERY-DRIVEN-DEVICE SYSTEM, AND CHARGING METHOD BY USING BATTERY PACK - An output connector | 2013-02-28 |
20130049676 | QUICK CHARGING DEVICE AND MOBILE CHARGING APPARATUS - A quick charging device includes a battery capable of quickly charging a battery for power, the battery for power being a load, a high-capacity battery having a higher electrical capacitance than the battery, and a controller configured to, when the battery for power is charged, connect the battery and the high-capacity battery in series to add power of the high-capacity battery to power of the battery, and supply the battery for power with the power obtained through the addition. | 2013-02-28 |
20130049677 | SYSTEM, DEVICES AND METHOD FOR CHARGING A BATTERY OF AN ELECTRIC VEHICLE - Energy exchange station for a battery of an electric vehicle, comprising at least one power output for a vehicle, means for determining whether a vehicle coupled to the at least one power output is able to be charged with an AC voltage and/or a DC voltage, a plurality of power inputs, comprising at least one AC power input; and at least one DC power input and at least one controllable switch, for switching the at least one power output to any of the power inputs a controller for the switch, for controlling the switch at least based on the determination. | 2013-02-28 |
20130049678 | BATTERY TEMPERATURE DETECTION AND PARASITIC RESISTANCE COMPENSATION SYSTEM - The present application provides systems and methods for battery temperature detection and parasitic resistance compensation. Compensation circuitry is provided to generate a compensation current, proportional to a battery charging or discharging current, to compensate for the parasitic resistance associated with the line connection between a charger/monitor and a battery pack. The compensation current operates to adjust a reference current supplied to a temperature sensor, to enable accurate temperature measurement of the battery pack while reducing or eliminating influence from the parasitic resistance. The compensation circuitry can be utilized in a battery charger topology to enhance battery charging control and/or a battery monitoring topology to enhance battery discharge control. | 2013-02-28 |
20130049679 | PROTECTION ELEMENT, BATTERY CONTROL DEVICE, AND BATTERY PACK - Heat from a heating resistor is efficiently transmitted to a low-melting-point metal body through a heat transfer path. A protection element, connected onto an electric current path of an electric circuit, is provided with an insulating substrate ( | 2013-02-28 |
20130049680 | ELECTRONIC DEVICE - An electronic device includes an electronic device main body, a USB connection unit, a VBUS detecting unit, a USB control unit, a battery contained in the electronic device main body, a battery monitoring unit, a charging control unit, a switch, and, a system control unit that controls the switch and the charging control unit. The VBUS detecting unit detects connection of the USB device. If the USB control unit determines that D+ and D− terminals of the USB connection unit are not short-circuited, when a battery voltage obtained from the battery monitoring unit is a preset threshold value or less, the system control unit starts charging of the battery. | 2013-02-28 |
20130049687 | System and Method for in Situ Charging of a Remote Vehicle - A system for in situ charging of at least one rechargeable power source of a remote vehicle. The system comprises a power recharger having contacts configured to supply power to the at least one rechargeable power source, and a chassis adapter at least partially enclosing the at least one rechargeable power source and retaining the at least one rechargeable power source on the remote vehicle, the chassis adapter including terminals connected to the at least one rechargeable power source and configured to mate with the power recharger to allow the power recharger to recharge the at least one rechargeable power source. The chassis adapter comprises charger input contacts including a positive contact, a ground, and one or more data contacts. The power recharger automatically disengages from the recharging terminals when the remote vehicle is driven away from the chassis adapter without damaging the power recharger. | 2013-02-28 |
20130049688 | VEHICLE BATTERY COOLING DEVICE - To achieve improvement in a vehicle battery cooling device in its effect on the cooling of a battery, and also in its mountability in a vehicle through simplification of a passage structure for the cooling. A structure is such that: an upstream end portion of an air inlet passage for cooling down a battery is opened behind and above a rear seat while an upstream end portion of an air inlet passage for cooling down a charger is opened to a space in front of a lower side of the rear seat; and in a case in which an air conditioning device takes in air from a lower part of a cabin and blows out cool air to an upper part of the cabin, air having cooled down the battery is returned into the cabin through the air inlet passage for cooling down the charger. | 2013-02-28 |
20130049689 | STORED ENERGY AND CHARGING APPLIANCE - A charging system detachably drawing from a power source comprising: (a) an electrical output configuration; (b) an electrical input configuration; and (c) an energy store configuration; and methods of provisioning the energy store, the charging system, and electric vehicle charger devices. | 2013-02-28 |
20130049690 | Vehicle Charger with Memory Function for Electric Vehicles - A vehicle charger with memory function for electric vehicles contains an AC input circuit, a power factor correction circuit, a high voltage DC circuit, a DC-DC conversion circuit, an output control circuit, and a charging output terminal. The charging output terminal is connected to and charges a battery pack of the electric vehicle. A MCU chip, a battery pack voltage detection circuit, an operation data memory chip, a vehicle control signal connection port, a perpetual calendar chip, a data reading port, and an auxiliary power supply circuit are further included. The MCU chip detects a voltage of the battery pack through the battery pack voltage detection circuit, automatically records the charge and discharge data of the battery pack, and stores the data into the operation data memory chip. The recorded data include: times to complete a normal charge process, times and when the charge is not done in time after discharged, times and when the charge is powered off to be stopped before it is full-charged, and times and when the voltage of the battery pack meets a low voltage protection. The charger can provide real-time and reliable data and has a protection function for batteries with low voltage. | 2013-02-28 |
20130049691 | CELL BALANCE DEVICE AND BATTERY SYSTEM - Provided are a cell balance device for protecting a switch circuit from an overcurrent flow. The cell balance device includes: a plurality of electric accumulator connection terminals each connected to one of a node and two terminals of electric accumulators connected in series; a voltage hold device connection terminal connected to a voltage hold device; a plurality of first switch circuits provided between the plurality of electric accumulator connection terminals and the voltage hold device; a control circuit for controlling ON/OFF of the plurality of first switch circuits based on a synchronization signal; and an overcurrent detection circuit for detecting an overcurrent flowing through each of the plurality of first switch circuits. | 2013-02-28 |
20130049692 | REFUELABLE STORAGE BATTERY - A reversible storage system for electric energy, including charging or discharging surfaces as a positive collector terminal and a charging or discharging area as a negative collector terminal and a flow electrode with a pumpable dispersion with particles storing electric energy and at least one supply line and at least one drain line for the pumpable dispersion. The pumpable dispersion includes particles storing electric energy in a capacitive and/or chemical fashion, having an average grain size distribution: 1 nM to 500 μm. For chemically storing particles, the negative and the positive collector terminals have a planar shape with a single exterior closed border and with their planar sides each contacting an ion-selective diaphragm or spacers, and the pumpable dispersion is arranged on a side facing away from the planar side of the respective collector, contacting the ion-selective diaphragm or spacers, and the dispersion at least partially penetrates the respective collector. | 2013-02-28 |
20130049693 | BATTERY POWERED ELECTRIC GENERATOR - A battery powered electric generator system and method of recharging a battery are disclosed. The system may include a battery, an inverter, and a charger connected between the battery and inverter. The charger may be adapted to draw and supply a portion of current drawn from the battery into the inverter back into the battery. | 2013-02-28 |
20130049694 | ELECTROCHEMICAL CELL, AND PARTICULARLY A CELL WITH ELECTRODEPOSITED FUEL - The present invention relates to a method for charging the cell by electrodeposition of metal fuel on the anode thereof | 2013-02-28 |
20130049695 | ELECTRIC POWER CONTROL APPARATUS AND GRID CONNECTION SYSTEM HAVING SAME - An electric power control apparatus enables a surplus electric power from a distributed power source to be stored in a storage battery in a consumer unit provided with a distributed power source and a storage battery. The electric power control apparatus is characterized in being provided with a compensation calculating unit which calculates the compensation of electric power by using a unit price of electricity for sale when charging the storage battery and a unit price of electricity for purchase when discharging from the storage battery. | 2013-02-28 |
20130049696 | Series/parallel connection scheme for energy storage devices - A battery pack has series-parallel connected battery cells. An inrush current limiting circuit has current limiting devices and a current limiting tracking means limits inrush current from shorted battery cells. Each current limiting tracking means is coupled to the current limiting devices such that they limit an inrush current from parallel neighbor battery cells when one battery cell on the column shorts. The current limiting devices are variable buffer resistors with a positive temperature coefficient. The current limiting tracking means are heat sinks that thermally couples the buffer resistors together such that the buffer resistors increase in resistance with a temperature increase caused by current flowing through the buffer resistor associated with the shorted battery cell. Current regulating elements are in series with columns of battery cells for preventing inrush current to the columns of the battery cells. | 2013-02-28 |
20130049703 | SYSTEMS AND METHODS FOR PROVIDING POWER TO A LOAD BASED UPON A CONTROL STRATEGY - Systems and methods are provided for an electrical system. The electrical system, for example, includes a first load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage through the interface and to provide a voltage and current to the first load. The controller may be further configured to, receive information on a second load electrically connected to the voltage source, determine an amount of reactive current to return to the voltage source such that a current drawn by the electrical system and the second load from the voltage source is substantially real, and provide the determined reactive current to the voltage source. | 2013-02-28 |
20130049704 | CHARGING APPARATUS AND CHARGING METHOD - According to one embodiment, a charging apparatus includes a charger, a controller, and a switch. The charger is configured to charge a battery. The controller is configured to control a charge of the battery performed by the charger such that the charge is stopped when a battery capacity reaches a first capacity at a first charge mode and stopped when the battery capacity reaches a second capacity lower than the first capacity at a second charge mode. The switch is configured to execute processing which is concerned with switching between the first charge mode and the second charge mode in accordance with a record on the battery capacity. | 2013-02-28 |
20130049705 | REGULATOR, BATTERY CHARGING APPARATUS AND BATTERY CHARGING SYSTEM - A regulator comprises a rectifying circuit that rectifies an alternating current output from an output terminal of each phase of the three-phase alternating-current generator “ | 2013-02-28 |
20130049706 | CIRCUIT FOR DISCHARGING AN X CAPACITOR - A circuit for discharging an X capacitor includes an AC detection unit, a reset unit, a counter, and a discharging unit. The AC detection unit is coupled to two terminals of the X capacitor through a pin. The AC detection unit has a plurality of reference levels for detecting a DC voltage level according to the plurality of reference levels, and outputting a detection signal. The reset unit is coupled to the AC detection unit for generating a reset signal according to the detection signal. The counter is coupled to the reset unit for being reset according to the reset signal. When the counter does not receive the reset signal within a first predetermined time, the counter generates a turning-on signal. The discharging unit is coupled to the counter for discharging the X capacitor according to the turning-on signal. | 2013-02-28 |
20130049707 | DC CHOPPER AND DC CHOPPING METHOD FOR DOUBLY FED INDUCTION GENERATOR SYSTEM - A DC chopper comprising a control unit and a power circuit and a DC chopping method for a DFIG (doubly fed induction generator) system are provided. The input terminal of the control unit is coupled to a DC capacitor of a converter to detect a DC voltage. The power circuit includes input terminals, an overvoltage protection module, a rectifier module and output terminals. The overvoltage protection module comprises at least one discharge unit formed from a discharge resistor and a switch element, and the rectifier module is coupled in parallel to the overvoltage protection module. When a grid voltage drops, the control unit outputs a corresponding control signal to drive the switch element to be ON or OFF, and the output terminal of the power circuit absorbs a portion of rotor inrush current, so as to impose over-current protection. | 2013-02-28 |
20130049708 | OUTPUT CONTROL DEVICE OF ELECTRIC GENERATOR - A rising temperature of components of an electric generator is restrained without deteriorating the quality of electricity output and the user-friendliness of the electric generator. AVR ( | 2013-02-28 |
20130049711 | Frequency Lock Loop for Hysteretic Switching Regulators - Embodiments of the present invention provide systems and methods for reducing switching frequency variation in a hysteretic switching regulator. Embodiments of the present invention provide a new duty cycle controller for a switching regulator incorporating a new Frequency Lock Loop (FLL) for controlling the hysteresis of a comparator, and this hysteresis variation directly controls the switching frequency. The FLL of the present invention advantageously maintains a fixed frequency operation for a switching regulator while not affecting the transient response or stability of the main loop because it only changes the hysteresis of the fast comparator and does not introduce delays in the main loop of the switching regulator. Thus, the FLL of the present invention advantageously maintains a fixed switching frequency while causing a minimal impact to the switching regulator. | 2013-02-28 |
20130049712 | DC-DC CONVERTER AND INFORMATION PROCESSING DEVICE - There is provided a DC-DC converter which converts an input voltage into an output voltage for supply to a load, in which an input terminal receives the input voltage, an output terminal outputs the output voltage, power stages each includes: a high side switch, a low side switch and an inductor, the control unit executes a first mode and a second mode wherein the first mode controls the high side switch and the low side switch in each of the power stages so that a ratio of an output current in each of the power stages to a load current flowing through the load becomes a set value and the second mode controls the high side switch and the low side switch in each of the power stages so that duty ratios of the high side switch and the low side switch are equalized among the power stages. | 2013-02-28 |
20130049713 | A/D CONVERSION APPARATUS AND DC-DC CONVERSION APPARATUS - There is provided with an A/D conversion apparatus which the first terminal receives a reference voltage signal, the single-ended to differential converter conducts single-ended to differential conversion on the reference voltage signal to obtain a first differential signal, the A/D converter conducts A/D conversion on the first differential signal based on the reference voltage signal to obtain a first digital signal, the digital circuit detects a DC offset which is a difference between the first digital signal and a digital signal, the second terminal receives an input signal, the single-ended to differential converter conducts single-ended to differential conversion on the input signal to acquire a second differential signal, the A/D converter conducts A/D conversion on the second differential signal based on the reference voltage signal to acquire a second digital signal, and the digital circuit subtracts the DC offset from the second digital signal to obtain a third digital signal. | 2013-02-28 |
20130049714 | PWM Control Circuit of A Converter And the Control Method Thereof - A PWM control circuit of a power converter includes an upper-bridge element Q | 2013-02-28 |
20130049715 | FEEDBACK CONTROL OF A DC/DC POWER CONVERTER - A current mode power conversion system and method operates in cycles. Each cycle includes an on time and an off time. The system includes an inductor connected to store energy during the on time of each cycle and use the energy during the off time of each cycle. The system provides a stable output voltage and a maximum-limited output current to a load during constant load conditions. The system comprises a feedback control linearly operable so as to control the output voltage across the load during constant load conditions, and non-linearly operable so as to control the output voltage across the load during certain detected changes in load conditions as a function of the derivative of the current in the inductor so as to speed up the transient response of the power conversion system when a fault condition exists. | 2013-02-28 |
20130049716 | DC-DC CONVERTER, CONTROL CIRCUIT AND INFORMATION PROCESSING SYSTEM - A DC-DC converter includes: an inductor provided between a power input node and a power output node; a plurality of switching elements which switch an input route of a power toward the inductor and a discharge route of the power from the inductor; a first pulse generation circuit which generates a first pulse based on a feed-back signal according to an output of the output node; a second pulse generation circuit which generates a second pulse having a second frequency being equal to or higher than a first frequency set as an upper limit of a human audible frequency band; a driver which drives the switching element based on one of the first pulse and the second pulse; and a control circuit which supplies the first pulse or the second pulse to the driver based on a load state of a load coupled to the output node. | 2013-02-28 |
20130049717 | SWITCHING POWER SUPPLY CIRCUIT AND CONTROL METHOD THEREFOR - A switching power supply circuit includes a PWM drive circuit ( | 2013-02-28 |
20130049718 | CLASS D AMPLIFIER AND CONTROL METHOD - A Class D power amplifier is for driving a load between first and second output nodes defined between two bridges. A controller is adapted to derive an amplifier hold signal when an overcurrent state is detected in an output bridge, and to prevent switching of the other output bridge between the two main output states. | 2013-02-28 |
20130049719 | VOLTAGE CLAMP CIRCUIT, A SWITCHING POWER SUPPLY DEVICE, A SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE, AND A VOLTAGE LEVEL CONVERSION CIRCUIT - A voltage clamping circuit which operates in a stable manner and a switching power source device which enables high-speed operation. In the switching power source device, one source/drain route is connected to an input terminal to which an input voltage is supplied, a predetermined voltage to be restricted is supplied to a gate, and using a MOSFET which provides a current source between another source/drain route and a ground potential of the circuit, a clamp output voltage which corresponds to the input voltage is obtained from another source/drain route. The switching power source device further includes a first switching element which controls a current in an inductor and a second switching element which clamps a reverse electromotive voltage generated in the inductor. The voltage clamping circuit is used in a feedback route for setting a dead time. | 2013-02-28 |
20130049720 | VOLTAGE REGULATOR CONTROLLER AND RELATED REFERENCE VOLTAGE ADJUSTING METHOD - A voltage regulator controller is disclosed including: a reference voltage generator for generating a reference voltage; a comparison circuit, coupled with the reference voltage generator, for comparing the reference voltage with an output voltage of a voltage regulator; and a control circuit, coupled with the reference voltage generator and the comparison circuit, for controlling the reference voltage generator to stepwise lower the reference voltage when a power saving command is received by the voltage regulator controller. | 2013-02-28 |
20130049729 | SEMICONDUCTOR CIRCUIT FOR OUTPUTTING REFERENCE VOLTAGES - A semiconductor circuit includes a control signal generation circuit configured to generate control signals in response to a voltage characteristic determination signal and a reference voltage generation circuit configured to output a main reference voltage, having one of a first characteristic of being proportional to temperature, a second characteristic of being constant irrespective of temperature, and a third characteristic of being inversely proportional to temperature, in response to the control signals. | 2013-02-28 |
20130049730 | DC-DC CONVERTER - A DC-DC converter includes an insulating substrate with an inductor provided on the top surface thereof, a switching control IC provided therein, and a ground electrode pattern provided on the bottom surface thereof. The ground electrode pattern includes a first pattern and a second pattern separated from each other and a bridge pattern that connects the first and second patterns to each other. A capacitor and the switching control IC is connected to each of the first and second patterns. The bridge pattern faces the inductor and has a smaller width than that of the first and second patterns. | 2013-02-28 |