Electric power conversion systems patents - Monitor Patents
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Electric power conversion systems

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
07/10/2014 > 19 patent applications in 16 patent subcategories.

20140192560 - Duty cycle balance module for switch mode power converter: A duty cycle balance module (DCBM) for use with a switch mode power converter. One possible half-bridge converter embodiment includes a transformer driven to conduct current in first and second directions by first and second signals during and second half-cycles, respectively. A current limiting mechanism adjusts the duty cycles of... Agent: Analog Devices Technology

20140192561 - Control circuit for switching power converters with synchronous rectifiers: A control circuit for switching power converters with synchronous rectifiers is disclosed for providing start-up and shut-down protection. The control circuit for switching power converters with synchronous rectifiers includes a means for blocking the driving signals to the synchronous rectifiers, a voltage sampling circuit, a reference voltage, and a comparator.... Agent: Alcatel-lucent Canada Inc.

20140192562 - Single stage ac/dc converter: A single stage AC/DC converter includes a rectifier to rectify an input AC voltage and output the input AC voltage from first and second input nodes to first and second output nodes, an input capacitor connected between the first and second output nodes to store a rectified voltage and output... Agent: Lg Innotek Co., Ltd

20140192563 - Dual-mode switching power control device: A dual-mode switching power control device includes an electric transformer, a PWM driving controller, a switching transistor, an isolation element, an output diode and an output capacitor. The PWM driving controller is connected to the switching transistor coupled to the electric transformer. The first side inductor of the electric transformer... Agent: Inno-tech Co., Ltd.

20140192565 - Circuit with synchronous rectifier for controlling programmable power converter: A control circuit of a power converter and a method for controlling the power converter are provided. The control circuit of the power converter comprises a switching circuit and a temperature-sensing device. The switching circuit generates a switching signal in response to a feedback signal, and the switching circuit generates... Agent: System General Corp.

20140192564 - Switching power converting apparatus: A switching power converting apparatus is capable of converting an input voltage to an output voltage, and includes a transformer, a primary side control module, and a secondary side control module. The secondary side control module utilizes voltage clamping techniques or current-drawing techniques to stop self-excited conversion from the input... Agent: Richtek Technology Corp.

20140192566 - Primary-side controlled programmable power converter: A circuit for controlling a programmable power converter is provided. The circuit comprises a control circuit, a switching controller, and a first opto-coupler. The control circuit generates a programmable voltage-reference signal for regulating an output voltage of the programmable power converter. A feedback circuit of the control circuit detects the... Agent: System General Corporation

20140192567 - Methods for controlling electrical inverters and electrical inverters and systems using the same: A system for generating a duty cycle control signal for controlling an inverter power train providing an output current waveform to a grid operating with a grid voltage waveform compares a reference current waveform shaped to the grid voltage waveform with the output current waveform to generate an error signal.... Agent: Aeg Power Solutions Bv

20140192568 - Inverter for a distributed power generator: Provided is a maximum power point (MPP) tracker for a PV cell inverter, and a PV cell inverter. The MPP tracker decouples output power oscillations from the input power generation and extracts maximum available power from the PV cell. The PV cell inverter uses the MPP tracker and generates a... Agent: Sparq Systems Inc.

20140192569 - Overvoltage protection circuit: Apparatus and methods for generating an overvoltage signal from a bias winding signal of a power converter transformer are disclosed. In one example, an overvoltage protection circuit may include a current augmentation circuit and a detection circuit. The current augmentation circuit may be coupled to receive the bias winding signal,... Agent:

20140192570 - Power generation system and method for operating a power generation system: According to an embodiment, a power generation system is provided comprising a power generator; a plurality of converter modules, each converter module having a DC link, wherein the DC link of each converter module is connected to the DC links of the other converter modules of the plurality of converter... Agent: Vestas Wind Systems A/s

20140192571 - Wide input voltage range power supply circuit: An under voltage lockout circuit configured to set a minimum turn-on voltage for a load is provided. The circuit includes an input terminal configured to receive an input voltage. The circuit includes a first transistor configured to become conductive to supply the input voltage to the load when an input... Agent:

20140192573 - Power conversion circuit: A power conversion circuit includes a high side switching device connected at its collector to the high potential side of a power supply, a low side switching device connected at its emitter to the lowpotential side of the power supply, a first junction to which the emitter of the high... Agent: Mitsubishi Electric Corporation

20140192572 - Power converter capable of outputting a plurality of different levels of voltages: A power converter includes a group of serial three-level inverters including 2n (n=2) three-level inverters connected in series, two switch circuits for selecting an output from either one of two of the three-level inverters in the group of serial three-level inverters, and a switch circuit for selecting an output from... Agent: Toshiba Mitsubishi-electric Industrial Sys. Corp.

20140192574 - Technique for reducing power consumed by electric equipment: When an image forming apparatus shifts to a power saving mode, a controller unit further reduces power consumption by switching AC current on/off every predetermined amount of time. When AC current input from a commercial AC power supply is turned off, a DC voltage generating circuit normally can no longer... Agent: Canon Kabushiki Kaisha

20140192575 - Method of forming a synchronous rectifier controller and structure therefor: In one embodiment, a synchronous rectifier controller is configured to initiate forming an off-time interval for a first period of time responsively to the controller forming a disable state of a switching signal wherein the control circuit maintains the switching signal in the disable state for at least the off-time... Agent:

20140192576 - Voltage regulator: Provided are improvements for systems and methods of alternating current (AC) to direct current (DC) power regulation. The system improvements include a regulation circuit having a microprocessor that controls a silicon controlled rectifier circuit. Method improvements include one or more of SCR load sharing, adaptive voltage droop compensation, and/or voltage... Agent: Trumpet Holdings, Inc.

20140192577 - Power conversion device: In the present invention, a power conversion device is provided with an inverter for converting power output from a power source; a first power supply bus, connected to the positive electrode side of the inverter and the power source; a second power supply bus, connected to the negative electrode sides... Agent: Nissan Motor Co., Ltd.

20140192578 - Power converter: Provided is a power converter 3 that directly converts polyphase AC power to AC power. A converter circuit has a plurality of first switching elements 311, 313 and 315 that are connected to each phase R, S or T of the polyphase AC power to enable switching for turning on... Agent: Nissan Motor Co., Ltd

  
07/03/2014 > 22 patent applications in 18 patent subcategories.

20140185326 - Power conversion device: There is disclosed a power conversion apparatus 3 for converting polyphase ac power directly to ac power. A conversion circuit includes a plurality of first switching devices 311, 313, 315 and a plurality of second switching devices 312, 314, 316 connected, respectively, with the phases R, S, T of the... Agent: Nissan Motor Co., Ltd.

20140185327 - High power density off-line power supply: A power supply is provided, the power supply including a filter stage configured to receive an AC input voltage, a bridge circuit configured to rectify the filtered AC input voltage, an AC/DC converter, and a DC/DC converter. The AC/DC converter includes a primary transistor and an auxiliary circuit including an... Agent: Avogy, Inc

20140185328 - Apparatus and method for avoiding transformer saturation: A controller for a power converter includes one or more controller modules operably linked to a transformer core of the power converter, to primary bridge switches of the power converter, and to secondary bridge switches of the power converter, wherein the one or more controller modules are configured to avoid... Agent: General Electric Company

20140185329 - Power supply apparatus: There is provided a power supply apparatus including an interleaved active clamp forward converter unit including a first active clamp forward converter and a second active clamp forward converter, and an output unit magnetically coupled to the forward converter unit and having an output path according to a duty ratio... Agent: Samsung Electro-mechanics Co., Ltd.

20140185330 - Dc to dc power converting device: A power converting device includes a switching unit, a resonant unit, a converting unit, a rectifying and filtering unit, an inductance-sensing unit, and a driver. The resonant unit is electrically connected to the switching unit and includes a resonant capacitor, a resonant inductor, and a variable magnetizing-inductor having at least... Agent: Chicony Power Technology Co., Ltd.

20140185331 - Active forward mode rectifier: A power converter includes a transformer having a primary winding and a secondary winding, a primary side circuit coupled to the primary winding, and a secondary side circuit coupled to the secondary winding and configured to output a substantially direct current (DC) output. The primary side circuit is configured to... Agent:

20140185332 - Switching power supply circuit: A switching power supply circuit (101) includes a first rectifier circuit (102) converting an alternate current to a direct current, a switching operator (20), a switching transformer (103) including a primary coil supplied with a switched current and a secondary coil inducing power corresponding to the current, a second rectifier... Agent: Panasonic Corporation

20140185333 - Active clamp circuits for flyback power converters: An active clamp circuit for a flyback power converter is provided. The active clamp circuit includes a power transistor, a capacitor, a high-side transistor driver, a charge-pump circuit, and a controller. The power transistor is coupled in series with a capacitor to develop an active-clamper. The active-damper is coupled in... Agent: System General Corporation

20140185334 - Switching power supply: Aspects of the invention provide a switching power supply in which frequency reduction control in a light load condition both in a power factor correction converter and a DC-DC converter restrains energy loss and achieves optimum efficiency. A switching power supply can include a power factor correction converter and a... Agent: Fuji Electric Co., Ltd.

20140185335 - Power converter system with synchronous rectifier output stage and reduced no-load power consumption: A power converter circuit may convert alternating current signals into direct current signals. A load may be powered from output terminals that are provided with the direct current signals. The power converter circuit may have a transformer with primary and secondary sides. A transistor on the primary side may be... Agent: Apple Inc.

20140185336 - Switching power supply apparatus and method of controlling switching power supply apparatus: A switching power supply apparatus includes a transformer having a primary winding, a secondary winding, and an auxiliary winding, a switching element coupled in series to the primary winding; an output circuit section generating a voltage output from power transferred from the primary winding to the secondary winding in response... Agent: Sanken Electric Co., Ltd.

20140185337 - Transverse shield wire for energy transfer element: Energy transfer elements having a shield to reduce EMI while maintaining a low profile are disclosed. In one example, the transformer may include a transverse shield wire that may be utilized to keep displacement current within the energy transfer element. While windings of the energy transfer element are generally wound... Agent:

20140185338 - Balancing power grid parameters using distributed energy control: Described embodiments include a system and a method. A system includes an energy storage device configured to store and release energy. The system includes a waveform sensor configured to detect a second harmonic or higher frequency component deviation in a waveform of electric power supplied to the system by an... Agent: Elwha LLC

20140185339 - Power factor correction circuit: There is provided a power factor correction circuit including: a power conversion circuit unit controlling an inductor current according to a switching signal applied to a main switch to convert an external input voltage into an output voltage having a predetermined range; an imbalance detection circuit outputting an imbalance state... Agent: Samsung Electro-mechanics Co., Ltd.

20140185340 - Switching power supply: In some aspects of the invention, a switching power supply can include a control circuit that conducts feedback control of a pulse width of a driving signal for switching the switching element according to an output voltage and settle the output voltage to a specified voltage level; a frequency reducing... Agent: Fuji Electric Co., Ltd.

20140185341 - Dc to ac power conversion apparatus and method thereof: A DC-to-AC power conversion method is provided, including: generating an AC reference signal and an AC zero crossing detection signal; generating an error signal based on the AC reference signal and an output current or an output voltage at an AC output terminal; generating a turn-off signal based on the... Agent:

20140185342 - Electrical supply apparatus with current waveform signal and method for operating the electrical supply apparatus: D

20140185343 - Switching mode power supply and control method thereof: There is provided a switching mode power supply having primary and secondary induction coils inductively coupled to each other and converting a voltage applied to the primary induction coil to supply the converted voltage to the secondary induction coil, the switching mode power supply including a power switching unit switching... Agent: Samsung Electro-mechanics Co., Ltd.

20140185344 - Method and apparatus for determining a corrected monitoring voltage: A method and apparatus for correcting a locally measured inverter voltage. In one embodiment, the method comprises determining a voltage compensation to compensate for a voltage drop along an AC bus between an inverter and a remotely located point on the AC bus; obtaining a voltage measurement at the inverter;... Agent: Enphase Energy, Inc.

20140185345 - Method and apparatus for three port line frequency energy storage: A method and apparatus for power conversion comprising a three-port converter comprising a DC port for coupling to an external DC line, an AC port for coupling to an external AC line, and a storage port, internal to the three-port converter, for storing excess energy and discharging needed energy during... Agent: Enphase Energy, Inc

20140185347 - Compound semiconductor device and manufacturing method therefor: An HEMT includes, on an SiC substrate, a compound semiconductor layer, a silicon nitride (SiN) protective film having an opening and covering the compound semiconductor layer, and a gate electrode formed on the compound semiconductor layer so as to plug the opening. In the protective film, a projecting portion projecting... Agent: Fujitsu Limited

20140185346 - Hybrid power devices and switching circuits for high power load sourcing applications: A hybrid switching circuit includes first and second switching devices containing first and second unequal bandgap semiconductor materials. These switching devices, which support parallel conduction in response to first and second control signals, are three or more terminal switching devices of different type. For example, the first switching device may... Agent: Eaton Corporation

  
06/26/2014 > 29 patent applications in 22 patent subcategories.

20140177280 - Systems and methods for source switching and voltage generation: System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal... Agent: On-bright Electronics (shanghai) Co., Ltd.

20140177281 - Power converting system and control method thereof: A power converting system includes a full-bridge converter and a controlling unit. The full-bridge converter includes two switch elements at a first leg and two switch elements at a second leg. The controlling unit is in communication with the full-bridge converter for generating two leading control signals to control the... Agent:

20140177283 - Power supply: There is provided a power supply including a direct current (DC) to DC converter supplying main power to a load, and a sub converter connected to the DC to DC converter and reducing output loss, wherein the sub converter is operable based on a hold-up time.... Agent: Samsung Electro-mechanics Co., Ltd.

20140177282 - Power supply device: There is provided a phase shift full bridge (PSFB) type power supply device controlling a switching on time of lagging leg switches according to a load state. The power supply device includes a power supply unit supplying preset DC power by switching input power using a full bridge by a... Agent: Samsung Electro-mechanics Co., Ltd.

20140177284 - Switching power-supply apparatus: A switching power-supply apparatus includes: a control circuit that controls on-and-off switching of a switching element; a first rectifying-and-smoothing circuit that smoothes a voltage generated in a secondary winding; and a second rectifying-and-smoothing circuit that smoothes a voltage generated in a tertiary winding as a power supply voltage, a starting... Agent: Sanken Electric Co., Ltd.

20140177286 - Quasi-resonant switching power supply: A quasi-resonance switching power supply quickly determines the number of bottom skips corresponding to the load condition even in abrupt load change. The quasi-resonance switching power supply is provided with a bottom skipping control function and a capacitor to hold a voltage corresponding to the load condition of the switching... Agent: Fuji Electric Co., Ltd.

20140177287 - Switching mode power supply and switching control circuit thereof: There are provided a switching-mode power supply (SMPS) and a switching control circuit thereof. The switching-mode power supply includes: a power supply circuit switching input power generated by rectifying AC power with a switching transistor to generate output power having a pre-set voltage level; and a switching control circuit having... Agent: Samsung Electro-mechanics Co., Ltd.

20140177285 - Electronic circuit control element with tap element: An example control element for use in a power supply includes a first terminal, a power MOSFET, and a control circuit. The power MOSFET has a drain terminal, a source terminal, a control terminal, and a tap terminal. In operation, a voltage at the tap terminal is less than and... Agent: Power Integrations, Inc.

20140177288 - Flyback converter: There is provided a flyback converter, including: a power supply unit supplying input power; a transformer unit including first and second transformers converting first and second primary current from the power supply unit into first and second secondary current, respectively; a main switch unit including first and second main switches... Agent: Samsung Electro-mechanics Co., Ltd.

20140177289 - Control circuit for reducing current error of output of power converter and control method thereof: A control circuit adjusts the output of a power converter by controlling a power switch, in which a primary side of a transformer, the power switch and a sensing resistor are connected in series to ground. The control circuit includes a peak current emulating unit, an error amplifier, a comparator,... Agent: National Taiwan University

20140177290 - Switch mode power supply, control circuit and associated control method: A switch mode power supply having an output terminal configured to provide an output voltage, the switch mode power supply has a first switch and a control circuit. The control circuit is configured to provide a switching control signal to control the first switch. The control circuit is configured to... Agent: Chengdu Monolithic Power Systems Co., Ltd.

20140177291 - Self-excited push-pull converter: A self-excited push-pull converter, which comprises a Royer circuit, wherein an inductor is further connected between a supply terminal of said Royer circuit and a center tap of primary windings of a transformer in said Royer circuit, an inductance amount of said inductor is less than 1/10 of the inductance... Agent:

20140177292 - Multilevel valve for voltage sourced converter transmission: A method for transforming electric power from high voltage AC voltage and AC current to high voltage DC voltage and DC current and from high voltage DC voltage and DC current to high voltage AC voltage and AC current. The method includes passing the power through voltage sourced converters whose... Agent:

20140177293 - Distribution transformer interface apparatus and methods: An apparatus includes at least one external source terminal configured to be connected to at least one secondary terminal of a distribution transformer and at least one external load terminal configured to be connected to a load. The apparatus further includes a converter circuit coupled to the at least one... Agent: Gridbridge

20140177294 - Systems and methods for suppressing resonances in power converters: Systems and methods for suppressing resonances in power converters are provided. A power converter (100) includes an input stage (101) configured to receive alternating current (AC), an output stage (102) configured to output alternating current (AC), a first direct current (DC) bus (106) coupling the input stage (101) to the... Agent: General Electric Company

20140177295 - Phase shift circuit and power factor correction circuit including the same: There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a switching circuit unit charging power in or discharging power from a capacitor through a plurality of switching devices and comparing a voltage of the capacitor with a predetermined... Agent: Samsung Electro-mechanics Co., Ltd.

20140177296 - Power conversion apparatus: A power conversion apparatus is provided. The power conversion apparatus includes an AC to DC adapter, an input port, a power conversion control unit, and a restart circuit. The AC to DC adapter converts an AC input voltage into a DC output voltage according to an external signal of an... Agent: Compal Electronics, Inc.

20140177297 - Power supply circuit: A power supply circuit preventing any overvoltage to an electronic element includes a voltage conversion unit and a voltage clamping unit. The voltage conversion unit converts voltage of a power supply into an operation voltage of the electronic element, and outputs the converted voltage through an output terminal of the... Agent: Hong Fu Jin Precision Industry (shenzhen) Co., Ltd

20140177298 - Device for protecting against an electrical overcurrent in at least one electronic switching branch, conversion system including such a protection device, and associated control method: The protection device includes, for each switching branch, at least one second controllable switch, each second switch being connected to the intermediate terminal or to an electrode of said diode in antiparallel to the first switch, each second switch being able to switch, under action of a controller, from an... Agent: Schneider Electric Industries Sas

20140177299 - Inverter and grid-connected power generation system: An inverter and a grid-connected power generation system are provided to efficiently reduce the electric energy loss due to a DC boosted circuit, improve the efficiency of a PV system, and increase lifetime of the inverter. The inverter comprises: a DC boosted circuit; an inversion circuit connected to a output... Agent: Boe Technology Group Co., Ltd.

20140177300 - Switched-mode power supply system and aircraft comprising such a system:

20140177301 - Power module and distributed power supply apparatus: There are provided a power module in which a bias voltage is varied and supplied to a control circuit controlling power conversion when an idle mode is switched to a normal mode, and a distributed power supply apparatus having the same. The power module includes: a power factor correction stage;... Agent:

20140177302 - Power factor correction apparatus and power supply apparatus: There are provided a power factor correction apparatus and a power supply apparatus, the power supply apparatus including a power supply unit switching input power to supply preset driving power to a load, and a control unit providing a switching control signal having a preset number of pulses for a... Agent: Samsung Electro-mechanics Co., Ltd.

20140177303 - Volt-second integration cable compensation circuit: A power converter (such as a battery charger) includes a cable configured to deliver a source voltage and current to a load, where the cable is anticipated to drop some voltage as the load current increases. The power converter also includes a regulator having a feedback-adjusting transistor configured to gradually... Agent: Texas Instruments Incorporated

20140177304 - Constant current source: A constant current source includes an alternating current input, a pair of capacitors connected in parallel with a load output, a pair of diodes connected in parallel with the pair of capacitors, wherein a first lead of the alternating current input is connected between the pair of diodes and a... Agent:

20140177308 - Electrical power conversion device: A normally-off bidirectional switch having two gates is connected to a transformer. The transformer has a first winding and a second winding. A first gate bias power supply configured to use power generated at the first winding to supply power for driving one of the gates of the bidirectional switch... Agent: Panasonic Corporation

20140177305 - Gate drive circuit for synchronous rectification: Systems, methods and apparatus are disclosed for AC to DC conversion. In one aspect a rectifier circuit for providing DC voltage to a load based at least in part on an AC input from an AC output source having a first and second terminal is provided. The rectifier circuit includes... Agent:

20140177306 - Method for operating an electrical power rectifier, as well as an electrical power rectifier: A method for operating an electrical power rectifier. The power rectifier comprises at least two branches that are connected in parallel to each other, each of the branches comprising at least two power semiconductor elements that are connected in series. The collector-emitter voltage Vce(t) and/or the collector current Ic(t) of... Agent:

20140177307 - Power factor improvement circuit: A power factor improvement circuit is configured with two series circuits each having a switching element and a rectifying element connected in series. Two input terminals of a single-phase AC power source are respectively connected between the switching elements and the rectifying elements in the series circuits. An inductor element... Agent: Tdk Corporation

  
06/19/2014 > 19 patent applications in 17 patent subcategories.

20140169038 - Digital isolator: Several circuits and methods for transferring an input data signal in a digital isolator are disclosed. In an embodiment, the digital isolator includes an isolation element, input circuit, and output circuit. The isolation element includes at least one input node and at least one output node, the input circuit is... Agent: Texas Instruments Incorporated

20140169039 - High bandwidth, high efficiency dc-dc multilevel converter topology: A multilevel DC-DC converter includes a voltage source that provides a voltage Vout1 to at least one charge converter circuit and an output filter capacitor having an associated output voltage Vout2. The at least one charge converter circuit includes a transformer having at least one primary winding and at least... Agent:

20140169040 - Multilevel converter: A power converter is presented. The power converter includes at least one leg operatively coupled between a first bus and a second bus and includes a first string including a plurality of non-controllable semiconductor switches, a first node, a second node, and a third node, where the first node is... Agent: General Electric Company

20140169041 - Dc to dc converting circuit: The invention provides a DC to DC converting circuit, comprising: a transforming unit with a primary winding and a secondary winding; a bridge rectifier unit coupled to an input voltage, having a first output terminal and a second output terminal coupled to both side of the primary winding respectively; a... Agent: Chung-shan Institute Of Science And Technology

20140169042 - Power supply device: A power supply device includes a primary circuit that includes two primary windings, a secondary circuit that includes two secondary windings and a switching element for synchronous rectification, a first transformer configured to couple one of the two primary windings with one of the two secondary windings, a second transformer... Agent: Fujitsu Limited

20140169043 - Bias voltage generating circuit and switching power supply thereof: Disclosed herein are bias voltage generating circuits configured for switching power supplies, and associated control methods. In one embodiment, a bias voltage generating circuit can include: (i) a first control circuit configured to compare a drain-source voltage of a switch against a bias voltage; (ii) a capacitor, with the bias... Agent: Silergy Semiconductor Technology (hangzhou) Ltd

20140169044 - Self-excitation push-pull type converter: A self-excited push-pull converter, comprising a Jensen circuit, characterized in that a two-terminal network with an electrical property of passing high frequencies and blocking low frequencies exists between a terminal of a magnetic saturation transformer primary winding and a terminal of a main transformer primary winding in said Jensen circuit,... Agent:

20140169045 - Bidirectional device, bidirectional device circuit and power conversion apparatus: Provided is a longitudinal bidirectional device in which current flows in a layering direction of a semiconductor layered portion formed on a front surface of a substrate, the bidirectional device comprising a first semiconductor element that includes a first channel and is formed on the semiconductor layered portion; and a... Agent: Fuji Electric Co., Ltd.

20140169046 - Power supply apparatus with low standby power consumption: An electronic apparatus is removed from a power supply apparatus and that can be certified by detecting a secondary-side transformer coil by a no-load detecting unit. The no-load detecting unit is configured to turn off an output switch unit and a power factor correction and pulse width modulation controller. An... Agent: Chicony Power Technology Co., Ltd.

20140169047 - Alternating-current conversion system having low power consumption bleeder circuit: A low power consumption bleeder circuit is disclosed, and it is coupled to an alternating-current (AC) power source, an input filtering capacitor, and a rectifying filter. The low power consumption bleeder circuit includes a first switch component, a second switch component, and a controller. The first switch component is coupled... Agent: Niko Semiconductor Co., Ltd.

20140169048 - Power conversion device: A power conversion device is provided which includes a plurality of series circuits each formed of a voltage source and a controlled current source. At least two of said series circuits formed of the voltage source and the controlled current source are connected in parallel. Further, parallel connection points of... Agent: Hitachi, Ltd.

20140169049 - Controller for a power converter and method of operating the same: A controller for a power converter and method of operating the same. In one embodiment, the controller includes a current-sense device couplable in series with switched terminals of power switches of interleaved switching regulators and configured to produce a current-sense signal. The controller also includes an error amplifier configured to... Agent: Power Systems Technologies, Ltd.

20140169050 - Blanking control circuit for controlling synchronous rectifier and method of controlling synchronous rectifier using the circuit: Disclosed herein are a blanking control circuit for controlling a synchronous rectifier and a method of controlling the synchronous rectifier by using the blanking control circuit. The blanking control circuit for controlling a synchronous rectifier includes: a power generating unit that receives power from the outside to generate a reference... Agent: Samsung Electro-mechanics Co.ltd.

20140169051 - Power supply device: A power supply device includes: a first serial circuit coupled between a first output terminal and a second output terminal, and including a first switching element and a first rectification element; a second serial circuit coupled between the first output terminal and the second output terminal, and including a second... Agent: Fujitsu Limited

20140169052 - Iii-nitride power conversion circuit: According to an exemplary embodiment, a III-nitride power conversion circuit includes a gate driver having a plurality of cascaded inverters, each of the plurality of cascaded inverters including at least one III-nitride transistor. At least one of the plurality of cascaded inverters has a cutoff switch and a III-nitride depletion... Agent: International Rectifier Corporation

20140169053 - Distributed voltage source inverters: Systems and methods are disclosed with multiple direct current (DC) voltage source inverters to supply power to an alternating current (AC) power system. The system includes a plurality of full bridge inverter stages, each having a primary node and a secondary node, each of said full bridge inverter stages having... Agent:

20140169055 - Non-isolated dc/ac inverter: A method and apparatus for converting DC power comprising: a boost circuit comprising two switches and a capacitor where the two switches are serially connected and coupled in parallel to the capacitor, a voltage source inverter (VSI) comprising at least four switches in an H-bridge configuration, and a controller coupled... Agent: Enphase Energy, Inc.

20140169054 - Semiconductor module, upper and lower arm kit, and three-level inverter: A first semiconductor module (100) on an upper arm side and a second semiconductor module (200) on a lower arm side are formed using an existing package, and the semiconductor modules (100) and (200) are used to configure an upper and lower arm kit (300). Further, the upper and lower... Agent: Fuji Electric Co., Ltd.

20140169056 - Clean energy generating device: The present invention is related to a clean energy generating device which includes coiled or spiral shaped conductors, for receiving electromagnetic wave and inducing electric current, and elements which can create magnetic fields passing through the coiled or spiral shaped conductors for rectifying alternating current (AC) and transforming random electron... Agent:

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