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US20110103118 NON-ISOLATED DC-DC CONVERTER ASSEMBLY  
A non-isolated DC-DC converter assembly includes a boost converter and a Ćuk converter connected together in a specific way. The non-isolated DC-DC converter assembly allows for grounding of a...
US20140293663 Modular Configurable Multi-Megawatt Power Amplifier  
In an embodiment, a power converter includes: a plurality of power amplifier units, each having: a plurality of slice each with a power conversion module including an AC/DC/AC converter; a mains...
US20130077362 POWER FACTOR CORRECTION (PFC) CIRCUIT CONFIGURED TO CONTROL HIGH PULSE LOAD CURRENT AND INRUSH CURRENT  
A power circuit for protecting against high pulse load current and inrush current is disclosed. The power circuit comprises a buck-boost module and a PFC controller operatively coupled with the...
US20140233283 STARTUP CIRCUIT AND METHOD FOR AC-DC CONVERTERS  
An AC-DC power converter includes a rectifying unit for generating a rectified voltage, an output stage for converting the rectified voltage into a DC voltage for a load, a controller for...
US20140268928 POWER CELL BYPASS METHOD AND APPARATUS FOR MULTILEVEL INVERTER  
Multilevel inverters, power cells and bypass methods are presented in which a power cell switching circuit is selectively disconnected from the power cell output, and a bypass which is closed to...
US20150229205 DIODE CIRCUIT AND POWER FACTOR CORRECTION BOOST CONVERTER USING THE SAME  
Embodiments relate to a diode circuit which uses a Schottky diode. A parallel bypass branch has a switch and bypass diode in series. The operation of the switch is dependent on the voltage across...
US20130033211 SWITCHING-MODE POWER SUPPLIES AND CONTROL METHODS THEREOF  
Disclosed include switching-mode power supplies and control methods thereof. A disclosed switching-mode power supply is coupled to an input power node and a ground node, comprising a controller, a...
US20110188276 CIRCUIT ARRANGEMENT HAVING A BOOST CONVERTER, AND INVERTER CIRCUIT HAVING SUCH A CIRCUIT ARRANGEMENT  
An inverter circuit contains a first and second DC sources for providing a DC voltage, a common boost converter for boosting the DC voltage, an intermediate circuit capacitor connected between the...
US20130010505 METHOD FOR CONTROLLING A POWER CONVERTER IN A WIND TURBINE GENERATOR  
A method for controlling a power converter in a wind turbine generator, the power converter being connected to a power grid, the method comprising obtaining an alternating current (AC) line...
US20060098466 Demagnetization circuit for using in push-pull circuit  
A demagnetization circuit that is used in a push-pull circuit, when the positive-half-period circuit is on and the negative-half-period circuit is off, a pulse width modulation signal (Vga) at...
US20130176762 Three Level Inverter Modulation  
An apparatus, system, and method for providing three level inverter modulation. In one embodiment, control signals can be provided to control a three level inverter in a power converter based on...
US20110211379 POWER CONVERTER WITH REVERSE RECOVERY AVOIDANCE  
A power converter includes a reverse-recovery avoidance scheme. The power converter may include deliver current from a direct current (DC) power source to an alternating current (AC) load. A first...
US20150098257 MULTIFUNCTION POWER CONVERTER WITH OPTION FOR INTEGRATED MAGNETICS  
Power converter modules and parallel conversion systems are presented in which the modules are provided in a rollable enclosure having AC and DC electrical connections, and an interior including a...
US20070296363 Rectifier and System for Controlling the Speed of an Electric Motor  
The invention concerns a reversible current rectifier, for connection to part of a polyphase network and to a continuous bus comprising a plurality of rectifier cells each rectifier cell including...
US20100328978 VARIABLE FREQUENCY TRANSFORMER HAVING MULTIPLE HORIZONTAL ROTARY TRANSFORMERS WITH COMMON CONTROLS AND VOLTAGE INFRASTRUCTURE AND METHOD  
A variable frequency transformer including: a first parallel circuit including at least two of the rotary transformers arranged in parallel and having an isolating circuit breaker connected to a...
US20130307340 POWER CONVERTER OPERABLE FROM VARIOUS POWER SOURCES  
A power converter and method of operating the same for use in a power conversion system capable of receiving power from various sources, including renewable sources, for application to a load....
US20120281443 INVERTER DEVICE COMPRISING A TOPOLOGY SURVEYING A SERIES OF CAPACITORS  
An inverter device for feeding electrical energy from a DC-power source into a power grid includes a pair of bus lines to be connected to the DC-power source; a plurality of capacitors connected...
US20150103574 POLY-PHASE INVERTER WITH INDEPENDENT PHASE CONTROL  
A converter system and inverter system are disclosed with individual real and reactive power control for each phase of a poly-phase system. The converter system includes a controller,...
US20150085535 LLC single stage power factor correction converter  
A single stage PFC LLC power converter is consist of two transformer, one forward transformer, one main transformer. The first winding of the forward transformer is connected with a capacitor in...
US20120155124 THREE-PHASE POWER SUPPLY WITH THREE-PHASE THREE-LEVEL DC/DC CONVERTER  
A three-phase power supply with a three-phase three-level DC/DC converter includes a full-bridge thyristor converter with three-set four in-series power switch elements, a three-phase isolated...
US20120250383 VOLTAGE ADJUSTING CIRCUIT, CONTACTLESS CARD AND CONTACTLESS CARD SYSTEM HAVING THE SAME, AND METHODS OF OPERATING THE VOLTAGE ADJUSTING CIRCUIT AND THE CONTACTLESS CARD  
A voltage adjusting circuit is provided includes an inducing circuit configured to induce a voltage from electromagnetic waves, a first rectifying circuit configured to rectify an output voltage...
US20110031930 SYSTEMS AND METHODS FOR BI-DIRECTIONAL ENERGY DELIVERY WITH GALVANIC ISOLATION  
Systems and methods are provided for bi-directional energy delivery. A charging system comprises a first bi-directional conversion module, a second bi-directional conversion module, and an...
US20110032737 Power Factor Correction Circuit for Three-Phase Power Supply  
A power-factor correction circuit for a three-phase power supply is provided. The correction circuit comprises a filtering unit at the input receiving the three phases of the current, at least one...
US20150200603 INTEGRAL INVERTER AND SOLAR CELL MODULE INCLUDING THE SAME  
Discussed is an integral inverter usable with a solar cell module including a solar cell panel. The integral inverter includes a terminal connected to the solar cell panel, a bypass diode...
US20140157015 CLAMP CIRCUITS FOR POWER CONVERTERS  
A power converter comprises an input port configured to receive a source of power, an output port configured to provide output power, and a bridge circuit coupled to the input port. The bridge...
US20140084702 MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY  
An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled...
US20120075894 Configurable Power Supply Assembly  
An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled...
US20110267858 CONFIGURABLE POWER SUPPLY ASSEMBLY  
An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled...
US20110267855 MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY  
An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled...
US20110149623 ACTIVE PARASITE POWER CIRCUIT  
A circuit is provided that includes a parasitic power circuit that powers a parasitic circuit. The parasitic power circuit derives a supply voltage from an external AC or other signal suitable for...
US20150256101 POWER CIRCUIT  
A power circuit includes: a rectifying circuit configured to rectify an AC voltage; a capacitor configured to integrate an output current of the rectifying circuit; a field effect transistor...
US20150062976 SWITCHED-MODE POWER SUPPLY WITH MODULAR ARCHITECTURE  
The disclosure concerns a switched-mode power supply comprising a module for charging and discharging an energy store including an electrical transformer. The device provides high configuration...
US20150229228 USB POWER CONVERSION DEVICE  
A device can be used to convert power supplied by an external power source into power that is compatible with an external electronic device. In an example implementation, the device receives...
US20100309701 SYNCHRONOUS RECTIFYING DRIVE CIRCUIT WITH ENERGY FEEDBACK FOR VOLTAGE DOUBLER RECTIFER  
A current-driven synchronous rectifying drive circuit designed for a T-type voltage doubler rectifier with an energy feedback circuit including a clamp and energy feedback circuit, a high...
US20140159676 POWER SUPPLYING APPARATUS AND POWER CHARGING APPARATUS  
There are provided a power supplying apparatus controlling voltage of a power factor correcting circuit according to a power state and a power charging apparatus controlling voltage of a power...
US20130285621 POWER SUPPLYING APPARATUS AND POWER CHARGING APPARATUS  
There are provided a power supplying apparatus controlling voltage of a power factor correcting circuit according to a power state and a power charging apparatus controlling voltage of a power...
US20110216568 SYSTEM INTERCONNECTION INVERTER  
The present invention includes: an inverter 1 configured to perform pulse wide modulation on an output from a DC power source 5; a first capacitor pair 41 provided at an input side of the inverter...
US20130250626 SWITCHING POWER-SUPPLY CIRCUIT  
A switching power-supply circuit includes a transformer, a first switching element, a first rectifying/smoothing circuit generating a first output voltage by rectifying and smoothing the output of...
US20120155134 HIGH EFFICIENCY RECTIFIER, WIRELESS POWER RECEIVER INCLUDING THE RECTIFIER  
A high efficiency rectifier and a wireless power receiver including the rectifier are provided. In one embodiment, a rectifier may be formed of a full bridge diode circuit and may include: a first...
US20120257426 AC Adapter With Automatic Built-In Power Switch  
The AC adapter with automatic built-in power switch comprises of an AC power supply circuit, an AC control circuit, and a monitoring circuit. The monitoring circuit further comprises of a standby...
US20110306295 Voltage Regulation of Near Field Communication Communicators  
A NFC enabled device to couple inductively to the H field of an RF signal and a regulator to regulate a voltage derived from an RF signal inductively coupled to the inductive coupler. The...
US20140268936 ULTRA LOW-VOLTAGE CIRCUIT AND METHOD FOR NANOPOWER BOOST REGULATOR  
At least one embodiment provides a method for a nanopower boost regulator to startup from an ultra-low-voltage (such as 0.3V˜0.5V) for energy harvesting applications. The method does not...
US20110103116 PLANT FOR TRANSMITTING ELECTRIC POWER  
A plant for transmitting electric power comprising a direct voltage network (100) and at least one three-phase alternating voltage network (101) connected thereto through a station (102). This...
US20150117077 AC / DC POWER BANK DISTRIBUTION MANAGEMENT SYSTEM  
An AC/DC power bank distribution management system is provided, which includes a power supply unit, a power distribution board and a power distribution unit. The power source includes the...
US20140126245 CONVERTING LEAKAGE CURRENT TO DC OUTPUT  
A power source capable of supplying power to operate electronics of a system is disclosed. In one example, the power source takes advantage of an electrical potential difference between primary...
US20120140527 CONVERTING LEAKAGE CURRENT TO DC OUTPUT  
A power source capable of supplying power to operate electronics of a system is disclosed. In one example, the power source takes advantage of an electrical potential difference between primary...
US20120092901 POWER MANAGEMENT IN AN ELECTROMAGNETIC TRANSPONDER  
A method for managing the power in an electromagnetic transponder in the field of a terminal, including the steps of: evaluating the power consumption of the transponder circuits; and if this...
US20110194319 ALTERNATING CURRENT POWER SUPPLY DEVICE AND METHOD OF CONTROLLING SAME  
An alternating current power supply device comprises a DC power supply for generating direct current power, a plurality of, e.g., three first DC/AC inverter to third DC/AC inverter which are...
US20130343098 Power Converters And Methods For Active Leakage Energy Recovery In A Power Converter  
Power converters and methods of recovering leakage energy in power converters are disclosed. In one embodiment, a power converter assembly includes an input for receiving a direct current (DC)...
US20130201737 OFF-GRID MASTER-SLAVE SOLAR INVERTER SYSTEM AND METHOD THEREOF  
A control method of an off-grid master-slave solar inverter system includes powering on the off-grid master-slave solar inverter system; a controller controlling a first inverter and a second...