| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) | 
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| 10/03/2012 | CN102710148A Alternating current-direct current (AC-DC) switching power supply converter  | 
| 10/03/2012 | CN102710140A Self-excited switching power supply circuit  | 
| 10/03/2012 | CN102710139A Full-bridge three-port bidirectional direct-current converter and control method thereof  | 
| 10/03/2012 | CN102710138A Harmonic direct current converter with wide range and low ZVS (zero-voltage-switching) output  | 
| 10/03/2012 | CN102710137A Low power switch power supply with high power factor and low current ripple  | 
| 10/03/2012 | CN102710136A Internal power supply circuit for wide-range power input  | 
| 10/03/2012 | CN102710135A Current equalization circuit for multi-module shunt-wound power supply  | 
| 10/03/2012 | CN102710134A Modular power supply device with reverse prevention function and reverse-prevention control circuit  | 
| 10/03/2012 | CN102710133A Seven-level circuit, a grid-connected inverter and modulation method and device of seven-level circuit  | 
| 10/03/2012 | CN102710132A Feedback type bipolar junction transistor (BJT) self-exciting Boost converter  | 
| 10/03/2012 | CN102710131A Converter and driving method thereof and power factor correcting device comprising converter  | 
| 10/03/2012 | CN102710130A High precision AC/DC (alternating current/direct current) converter current-limit circuit  | 
| 10/03/2012 | CN102710129A High-precision DC/DC converter current limiting circuit  | 
| 10/03/2012 | CN102710128A Voltage converters with reduced output frequency variations and associated methods  | 
| 10/03/2012 | CN102710127A Single-inductance double-output power converter and driving method thereof  | 
| 10/03/2012 | CN102710126A High-gain type step-up direct current converter  | 
| 10/03/2012 | CN102710125A Switching power supply device and lighting apparatus  | 
| 10/03/2012 | CN102710124A Charge pump circuit  | 
| 10/03/2012 | CN102710123A High-efficiency low-power consumption pulse energy conversion module  | 
| 10/03/2012 | CN102710122A Positive high-voltage charge pump  | 
| 10/03/2012 | CN102710121A Non-isolation type switching electric capacity adjuster for soft switch  | 
| 10/03/2012 | CN102710120A Power converter for electric vehicle  | 
| 10/03/2012 | CN102710119A Differential sensing for voltage control in a power supply circuit  | 
| 10/03/2012 | CN102710028A Cable theft-proof monitoring system based on passive carrier communication  | 
| 10/03/2012 | CN102709994A Charge-discharge two-way power converter for battery for electric car  | 
| 10/03/2012 | CN102709896A Clamping protection circuit, resonance circuit and converter  | 
| 10/03/2012 | CN102708740A Manual input ocular demonstration bridge chopping and inverting experimental circuit  | 
| 10/03/2012 | CN102707107A Portable adjustable direct current voltage source for test of frequency changer  | 
| 10/03/2012 | CN102700484A Power supply unit and car electronic control unit in car electronic control system  | 
| 10/03/2012 | CN102075089B Power converter with digital calibration function  | 
| 10/03/2012 | CN102052206B Energy saver of automobile engine  | 
| 10/03/2012 | CN101989811B Rectifier circuit, label circuit and chip for high-frequency radio frequency identification device (RFID) label  | 
| 10/03/2012 | CN101917120B Device for controlling high precision peak inductive current of switch power supply  | 
| 10/03/2012 | CN101895195B Ultrahigh pressure signal interface circuit  | 
| 10/03/2012 | CN101888178B Charge pump circuit used for reducing current mismatch at extra-low voltage in phase-locked loop  | 
| 10/03/2012 | CN101860204B Direct current/ direct current converter and direct current/ direct current converting method  | 
| 10/03/2012 | CN101855817B Switcing power supply, control circuit controlling switching power supply and control method of switching power supply  | 
| 10/03/2012 | CN101795068B Switch type regulator and control method thereof  | 
| 10/03/2012 | CN101753011B Behavioral scaling model of charge pump circuit suitable for spice scaling emulation  | 
| 10/03/2012 | CN101741250B Pulse width modulation control circuit reducing electromagnetic interference by frequency modulation of commercial power and method thereof  | 
| 10/03/2012 | CN101667019B Control method and circuit of double-module modulation and mode smooth conversion switching power supply  | 
| 10/03/2012 | CN101656477B Dc-dc converter and controller of the dc-dc converter  | 
| 10/03/2012 | CN101521470B Power supply method and power supply system for rubber-tyred container gantry crane  | 
| 10/03/2012 | CN101499725B Modulator with linear period stretching capability  | 
| 10/03/2012 | CN101447760B Voltage controller of wind generating set  | 
| 10/03/2012 | CN101385397B Circuit arrangement for providing an operating DC voltage  | 
| 10/03/2012 | CN101114797B Constant voltage supply circuit  | 
| 10/03/2012 | CN101064474B Control circuit of power supply switch  | 
| 10/02/2012 | US8279646 Coordinated power sequencing to limit inrush currents and ensure optimum filtering  | 
| 10/02/2012 | US8279638 Output regulation circuit of a power converter without current sensing loss and method thereof  | 
| 10/02/2012 | US8279637 Generating drive signals for a synchronous rectification switch of a flyback converter  | 
| 10/02/2012 | US8279636 Flyback converter with forward converter reset clamp  | 
| 10/02/2012 | US8279635 Driving circuit  | 
| 10/02/2012 | US8279634 Circuit and method for predicting a valley timing for a voltage across a switching device  | 
| 10/02/2012 | US8279633 Parallel-connected resonant converter circuit and controlling method thereof  | 
| 10/02/2012 | US8279632 Apparatus for transfer of electrical energy  | 
| 10/02/2012 | US8279631 Limiting primary peak charge to control output current of a flyback converter  | 
| 10/02/2012 | US8279630 Continuous conduction mode power factor correction circuit with reduced sensing requirements  | 
| 10/02/2012 | US8279629 Switching power supply  | 
| 10/02/2012 | US8279628 Audible noise suppression in a resonant switching power converter  | 
| 10/02/2012 | US8279627 Method and apparatus for a control circuit with multiple operating modes  | 
| 10/02/2012 | US8278972 Method and apparatus for simplifying the control of a switch  | 
| 10/02/2012 | CA2526713C Frequency controlled resonant converter  | 
| 09/28/2012 | CA2772274A1 Circuits for dc energy stores  | 
| 09/27/2012 | WO2012129485A2 Integrated magnetics with isolated drive circuit  | 
| 09/27/2012 | WO2012129337A1 Apparatus and method for efficient dc-to-dc conversion through wide voltage swings  | 
| 09/27/2012 | WO2012128937A1 System and method for providing positive and negative voltages from a single inductor  | 
| 09/27/2012 | WO2012128441A1 Power supply apparatus for rapid charging  | 
| 09/27/2012 | WO2012127926A1 Power supply circuit  | 
| 09/27/2012 | WO2012127844A1 Switching power source control circuit for driving light-emitting element, and light-emitting device and electronic apparatus using same  | 
| 09/27/2012 | WO2012127317A1 Tabless roll capacitor and capacitor stack  | 
| 09/27/2012 | WO2012126407A2 Single service board and method for controlling power supply thereof  | 
| 09/27/2012 | WO2012041613A3 A bi-directional dc-dc converter and a system for starting and controlling a power plant  | 
| 09/27/2012 | US20120243272 Constant current power supply apparatus  | 
| 09/27/2012 | US20120243271 Power Converter with Reduced Power Dissipation  | 
| 09/27/2012 | US20120243270 Flyback dc-dc converter with feedback control  | 
| 09/27/2012 | US20120243269 Circuits and Methods for Controlling Power Converters Including Transformers  | 
| 09/27/2012 | US20120243268 Transformers and Methods For Constructing Transformers  | 
| 09/27/2012 | US20120243267 Apparatus and method for efficient dc-to-dc conversion through wide voltage swings  | 
| 09/27/2012 | US20120243266 Method and apparatus for high-side input winding regulation  | 
| 09/27/2012 | US20120243265 Control device for dc/dc converter  | 
| 09/27/2012 | US20120243264 Power Supply Device  | 
| 09/27/2012 | US20120243263 Dc-dc converter circuit  | 
| 09/27/2012 | US20120243262 Power supply system  | 
| 09/27/2012 | DE112009004843T5 Leistungsversorgungssystem Power supply system  | 
| 09/26/2012 | EP2503685A1 Supply Architecture for Inductive Loads  | 
| 09/26/2012 | EP2502337A2 Power supplying system  | 
| 09/26/2012 | EP2408097A9 Current-fed converter  | 
| 09/26/2012 | CN202455283U Compound electronic filtering stabilized-voltage power supply  | 
| 09/26/2012 | CN202455282U Multi-output power supply with auxiliary output voltage stabilizing circuit  | 
| 09/26/2012 | CN202455281U Constant-power output power supply device for measuring and controlling front-end power  | 
| 09/26/2012 | CN202455274U Novel high-power direct current communication power supply  | 
| 09/26/2012 | CN202455273U Digital two-way direct current/direct current converter used for electric drive vehicles  | 
| 09/26/2012 | CN202455272U Power supply circuit with over-current protection  | 
| 09/26/2012 | CN202455271U Secondary-side circuit of DC-DC converter  | 
| 09/26/2012 | CN202455270U Control equipment and circuit integrated in silicon chip  | 
| 09/26/2012 | CN202455269U Switch power supply with standby switching circuit  | 
| 09/26/2012 | CN202455268U Small-power switch power supply manufactured by using NE555  | 
| 09/26/2012 | CN202455267U 电源电路 The power supply circuit  | 
| 09/26/2012 | CN202455266U Buck-Boost voltage-regulating voltage balance converter  |