Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
04/2008
04/09/2008CN100380796C Switching type power switching circuit and saturable transformer
04/09/2008CN100380795C Method of frequency limitation and overload detection in a voltage regulator
04/09/2008CN100380794C Dc/dc converter
04/09/2008CN100380775C Combination of AC-DC to DC converter
04/08/2008US7355871 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components
04/08/2008US7355870 Switching mode power supply and method for outputting voltage therefrom
04/08/2008US7355867 Power supply for an electric meter having a high-voltage regulator that limits the voltage applied to certain components below the normal operating input voltage
04/08/2008US7355864 Switching regulator and its control method
04/08/2008US7355830 Overcurrent protection device
04/08/2008US7355829 Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuit
04/08/2008US7355374 Direct current voltage transformer
04/08/2008US7355373 DC-DC converter
04/08/2008US7355303 Constant voltage discharge device
04/08/2008US7354301 DC adapter and electronic apparatus using the same
04/08/2008CA2493048C Dc power source determination circuitry for use with an adapter
04/03/2008WO2008039590A2 Regulated charge pump circuit and application in power stages employing normally on power switching devices
04/03/2008WO2008037668A1 A dc-dc converter with an active snubber
04/03/2008WO2008037221A1 Power supply and its transformer
04/03/2008WO2008004008A3 Switch mode power supply systems
04/03/2008WO2007126630A3 Methods and apparatus for switching regulator control
04/03/2008US20080080220 Inverter with Improved Overcurrent Protection Circuit, and Power Supply and Electronic Ballast Therefor
04/03/2008US20080080217 Circuit Device
04/03/2008US20080080212 Switched-mode power supply system and speed variator comprising such a system
04/03/2008DE112005000731T5 Gleichstrom-Gleichstrom-Wandler mit mehreren Ausgängen DC-DC converter with multiple outputs
04/03/2008DE102006046383A1 Voltage supply circuit comprises step up converter for generating output voltage at output connection from input voltage, where charging pump driver converts supply DC voltage into intermediate alternating voltage
04/03/2008DE102006046019A1 Schaltungsanordnung und Verfahren zur PWM-Ansteuerung einer elektrischen Last Circuit arrangement and method for PWM driving an electrical load
04/03/2008DE102006045970A1 Verfahren und Vorrichtung zum Betreiben eines Transformators Method and apparatus for operating a transformer
04/03/2008DE102006045909A1 Voltage generation circuit has four switches having two ends where one end is connected with supply potential and other end is connected with storage capacitance
04/03/2008DE102006045902A1 Integrated semiconductor component has function block, and power control unit which produce supply voltage from input voltage, and frequency spectrum is adjusted in dependence of actual operating condition
04/03/2008DE102006044879A1 Stromversorgungsvorrichtung A power supply apparatus
04/03/2008DE102006043941A1 Antriebsenergieversorgung bei Schienenfahrzeugen Driving power supply for rail vehicles
04/02/2008EP1906516A1 Switching power supply unit and voltage detection circuit
04/02/2008EP1905222A2 Dc/dc converter-regulator
04/02/2008EP1904722A1 Arrangement for agglomerating and collecting particles contained in exhaust gases of an internal combustion engine for a motor vehicle provided a high-voltage power supply
04/02/2008CN201044437Y Remote control switch controlling make and break of load by single phase wire
04/02/2008CN201044418Y Constant-current control power supply
04/02/2008CN201044417Y Minitype frequency converter
04/02/2008CN201044413Y Circuit for implementing output voltage regulation of switch power source
04/02/2008CN201044412Y Circuit for implementing output voltage regulation of switch power source
04/02/2008CN101156305A Method for operating a switched mode power supply with the recovery of primary scattered energy
04/02/2008CN101156304A Switched mode power converter and method of operation thereof
04/02/2008CN101154892A Control circuit of synchronous rectification type power supply unit, synchronous rectification type power supply unit and control method thereof
04/02/2008CN101154891A Resonance converter and its synchronous commutation driving method
04/02/2008CN101154890A Power supplying converter with failure-to-safety characteristic
04/02/2008CN101154889A Output control circuit of switch power supply
04/02/2008CN101154888A Switching type power supplier and its control circuit and method
04/02/2008CN101154887A Wind power generation power conversion device of direct-driving type permanent magnet synchronous motor
04/02/2008CN101154886A DC-to-DC switching circuit and its controller
04/02/2008CN101154885A Width pulse modulation booster system and its starting method
04/02/2008CN101154884A Current mode width pulse modulation booster circuit and its feedback signal sensing method
04/02/2008CN101154880A Semiconductor device alleviating or preventing surge voltage
04/02/2008CN100379137C Zero valtage switch compound crisscross parallel two-tube positive shock three-level DC inverter
04/02/2008CN100379136C Switching power supply circuit
04/02/2008CN100379135C 电源电路 The power supply circuit
04/02/2008CN100379134C Step-up switching voltage regulator circuit
04/02/2008CN100379133C High-voltage input zero voltage switch DC converter
04/02/2008CN100379132C Soft-switch PWM interleaving shunt-wound two-transistor forward power converter
04/02/2008CN100379131C Three-level output soft-switch isolated DC converter
04/02/2008CN100379119C Conversion device with power factor correcting and DC-DC conversion function
04/01/2008US7352600 Electric power unit
04/01/2008US7352599 Switching power source apparatus
04/01/2008US7352598 Inverter units with duty cycle control based on the detected, high and low output voltage
04/01/2008US7352596 Method of operating a resonant push-pull converter in an above resonant frequency mode
04/01/2008US7352595 Primary-side controlled switching regulator
04/01/2008US7352269 Method for making magnetic components with N-phase coupling, and related inductor structures
04/01/2008US7352232 Method and apparatus for extending the size of a transistor beyond one integrated circuit
04/01/2008US7352136 DC-DC converter with reduced surge voltage and an electronic ballast including the converter for a discharge lamp
04/01/2008US7351931 Switching power supply apparatus and electronic device using the same
03/2008
03/27/2008WO2008036391A1 Multiple output multiple topology voltage converter
03/27/2008WO2008035988A1 A switched mode power supply and method of production
03/27/2008WO2008034515A1 Power supply device with power factor correction and (startup) current limitation
03/27/2008WO2008012722A3 Determining output voltage or current in an smps
03/27/2008WO2008012714A3 Binary controller and power supply with a binary controller
03/27/2008WO2008004009A3 Switch mode power supply systems
03/27/2008WO2007144649A3 Power supply for atomisation device
03/27/2008WO2005101633A3 Methods and devices for low noise current source with dynamic power distribution
03/27/2008US20080074906 Power Transformation Device of a Powered Device in a Power Over Ethernet System
03/27/2008US20080074905 Method for Controlling Bidirectional DC-DC Converter
03/27/2008US20080074904 Bipolar Power Supply System
03/27/2008DE202008001162U1 Netzgerät Power Supply
03/27/2008DE202008000460U1 Netzgerät mit höherem Spannungsumwandlungswirkungsgrad Power supply unit with a higher voltage conversion efficiency
03/27/2008DE19830758B4 Schaltnetzteil Switching power supply
03/27/2008DE112005002255T5 Vorrichtung und Verfahren für Mehrphasentransformatoren Apparatus and method for multi-phase transformers
03/27/2008DE102006043831A1 Energy-storage system for vehicle hybrid system, has partial energy storage for storage and distribution of electric energy by series connection, where bi-directional direct current regulator is upstream to each partial energy storage
03/27/2008DE102006040186A1 Verfahren zum Betreiben eines elektrischen Gerätes Method for operating an electrical appliance
03/26/2008EP1903666A1 Integrated switch-mode power supply and linear regulator
03/26/2008EP1903549A2 Plasma television and power supply circuit
03/26/2008EP1903417A2 Electronic control device comprising a transistor with a tap connection
03/26/2008EP1902512A2 Wide range power supply
03/26/2008EP1800198A4 Master slave critical conduction mode power converter
03/26/2008CN101151789A Control of a resonant converter
03/26/2008CN101151788A Voltage converting apparatus and vehicle
03/26/2008CN101150285A Power supply topologies with PWM frequency control
03/26/2008CN101150284A Power supply device for improving power supply conversion efficiency
03/26/2008CN101149650A Optical pointing device and power supply semiconductor device therefor
03/26/2008CN100377487C Low power flyback exchanging circuit with primary side voltage feedback
03/26/2008CN100377486C Converter with automatic switching over pulse width/frequency modulating mode and its control circuit
03/26/2008CN100377485C Switching power source device
03/26/2008CN100377484C Semiconductor integrated circuit for DC-DC converter
03/26/2008CN100377483C PWM controller with temperature regulation of switching frequency