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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...
US20130201742 VOLTAGE CONVERTING CIRCUIT AND ELECTRONIC DEVICE  
A voltage converting circuit includes a plurality of first capacitors that are charged by a power source, a second capacitor, connected in parallel to the plurality of first capacitors, which is...
US20090323377 OPTIMAL UTILIZATION OF POWER CONVERTERS FOR ENGINE START SYSTEM  
A method and system for utilization of power converters in an aircraft engine start system includes measurement of power converter operation data that is utilized with a mathematical model of the...
US20130308353 NEAR ZERO CURRENT-RIPPLE INVERSION OR RECTIFICATION CIRCUITS  
The present invention relates to a near zero current-ripple inversion circuit including top and bottom cells, a transformer (T1) comprising primary windings (P1, P2) and a secondary winding (S1),...
US20150160270 Primary Sensing of Output Voltage for an AC-DC Power Converter  
A method for estimating an output voltage of a power converter comprises sensing a voltage waveform representative of the output voltage; and detecting a first gap and a second gap. The first gap...
US20130181532 HIGH-VOLTAGE POWER CONVERTER  
The present invention relates to a high-voltage power converter comprising a number of controllable switching valves, each switching valve comprising a plurality of series connected switching...
US20120275204 Bridgeless Power Factor Correcting Circuits with two Switches  
Six, non-isolated, high-frequency, PWM dc-to-dc converters with two switches and bipolar output voltage are reported to perform power factor correction without requiring a bridge rectifier circuit...
US20110299260 ELECTRONIC DEVICE ENCLOSURE AND POWER SUPPLY THEREOF  
An electrical device enclosure includes a front panel, a power supply and a switch assembly mounted on the front panel. The power supply includes an alternating current (AC) plug and a power...
US20140211520 SYSTEM AND METHOD FOR POWER CONVERSION  
A grid-side transformerless power conversion system configured to perform power conversion between a power grid and a load, the transformerless power conversion system includes a first converter,...
US20130235631 ZERO VOLTAGE SWITCHING INTERLEAVED BOOST AC/DC CONVERTER  
Circuits and methods relating to the provision of a reactive current to ensure zero voltage switching in a boost power factor correction converter. A simple passive circuit using a series...
US20130026834 POWER CONVERSION DEVICE  
An uninterruptible power supply device including a filter for rejecting, in the voltage of a power supply node between a converter and an inverter, a ripple voltage of a frequency twice a...
US20080180979 INVERTER BUS STRUCTURES AND ASSOCIATED METHODS  
Inverter bus structures, assemblies and associated methods are disclosed herein. One embodiment of the disclosure, for example, is directed to a power inverter including an inverter module for...
US20120307535 POWER SUPPLY APPARATUS  
There is provided a power supply apparatus supplying driving power. The power supply apparatus includes: a first power converter bypassing input power when a voltage level of the input power...
US20140098576 LOAD CHANGE DETECTION FOR SWITCHED MODE POWER SUPPLY WITH LOW NO LOAD POWER  
A pulse scheme is used for load change detection in a switching mode power supply with low no-load power consumption. The pulse scheme includes a measurement pulse for determining a load condition...
US20090219696 POWER CONVERSION DEVICE AND FABRICATING METHOD FOR THE SAME  
A power conversion device in which the inductance of a main circuit is reduced, a surge voltage is suppressed, elements are properly cooled, which is miniaturized and reduced in weight as a whole,...
US20150009726 GROUND SCHEME IDENTIFICATION METHOD  
The present techniques include methods and systems for detecting the grounding condition of an electrical system to automatically determine a suitable electrical drive configuration. The drive...
US20130235626 THREE-PHASE THREE-LEVEL SOFT-SWITCHED PFC RECTIFIERS  
A low input-current-harmonic three-phase three-level boost rectifier includes an input stage for receiving a three-phase input voltage in relation to a neutral node and an output stage adapted to...
US20150146455 CURRENT CONTROL FOR DC-DC CONVERTERS  
A DC-DC converter having a primary side comprising at least three actively switched primary voltage bridges with several active switches for converting a DC input voltage into primary alternating...
US20140177307 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...
US20140177295 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...
US20130128637 POWER RAIL REGULATOR SYSTEM  
A power regulators system and method is disclosed. In one embodiment, a power regulator system (10) is provided and includes at least one power supply (16) each configured to convert a DC rail...
US20120044718 POWER CONVERTERS  
A power converter for delivering power to a load at a regulated voltage 11 includes a regulating stage receiving an unregulated supply 10 and having a main transformer 18. Switches 16a and 16b are...
US20110261598 POWER CONVERTER WITH MULTI-LEVEL VOLTAGE OUTPUT AND HARMONICS FILTER  
A device for converting a DC voltage into an AC voltage and vice versa comprises at least one phase leg with a first voltage source and a first inductor connected in series between a first DC...
US20130343110 Inverter, Sealing Air Duct and Heat Dissipation System  
An inverter, a sealing air duct, and a heat dissipation system are disclosed. The inverter includes: an enclosure having a first cavity and a second cavity that are isolated from each other and...
US20140321170 INTEGRATED PRIMARY STARTUP BIAS AND MOSFET DRIVER  
Some implementations are directed to a A DC-to-DC converter that includes a power transformer having a primary side and a secondary side and a plurality of power transistors coupled to the primary...
US20150137722 DC Voltage Detector and Power Converter Using the Same  
In a thyristor control device which converts a first AC voltage to a DC voltage and converts the DC voltage to a second AC voltage to be supplied to a synchronous motor, a DC voltage detector is...
US20130285460 POWER ADAPTER HAVING PROGRAMMABLE GAIN COMPENSATION TRIM  
A power adapter to supply power at an output. The power adapter has a programmable gain compensation trim function. In some examples, the gain compensation trim function is a negative gain...
US20120120690 POWER SUPPLY CIRCUIT  
A power supply circuit enabling provision of good energy efficiency and downsizing is provided. A power supply circuit 1 according to the present invention includes: input terminals 2, 2 connected...
US20130088902 PROPORTIONAL BIAS SWITCH DRIVER CIRCUIT  
A switch bias system is provided that includes a bipolar junction transistor (BJT) switch comprising a base, emitter, and collector; a current sense circuit coupled to the emitter, the current...
US20140268941 REACTIVE POWER BALANCING CURRENT LIMITED POWER SUPPLY FOR DRIVING FLOATING DC LOADS  
A capacitance based reactive power balancing current limited power supply (RPBCLPS) for driving floating DC loads utilizes capacitive reactance to limit current being supplied to a load, rather...
US20140339890 INVERTER AND POWER SYSTEM WITH FUSE PROTECTION  
A power conversion system includes a bus bar, a switch coupled to the bus bar and configured to receive a DC input voltage from a voltage source through the bus bar, and a parallel fuse system....
US20140146587 POWER MODULE WITH A MULTI-RESONANCE CIRCUIT (EMBODIMENTS)  
The invention relates to power electronics. The use of said invention in autonomous inverter and pulse regulator circuits makes it possible to reduce dynamic losses and additional losses of...
US20120243268 Transformers and Methods For Constructing Transformers  
Transformers and methods of constructing transformers are disclosed. In one embodiment, a method of constructing a transformer includes wrapping a first primary winding around a core, wrapping a...
US20120262948 PHOTOVOLTAIC MODULE  
A photovoltaic module includes: a solar cell module including a plurality of solar cells; and a junction box including a capacitor unit attached to one face of the solar cell module and that to...
US20110182088 QUASI-RESONANT POWER SUPPLY CONTROLLER AND METHOD THEREFOR  
In one embodiment, a quasi-resonant power supply controller is configured to select particular valley values of a switch voltage to determine a time to enable a power switch. The valleys values...
US20140167661 POWER CONVERSION SYSTEM  
This disclosure relates to a power conversion system to power a variable impedance load with a variable power source, the power conversion system comprising a power converter including input...