Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
01/2004
01/02/2004EP1376838A1 Current-powered converter with energy recovery clamping circuit
01/02/2004EP1376837A1 DC/DC converter with filter for limiting the oscillation of the input current and associated method
01/02/2004EP1376836A2 Quick-start DC-DC converter circuit and method
01/02/2004EP1376814A2 Power supply control circuit
01/02/2004EP1376529A2 Image display device and portable electrical equipment
01/02/2004EP1376295A1 Power-supply device
01/02/2004EP1374393A2 High efficciency switching amplifiers
01/02/2004EP1374390A2 Dc-coupling approach for current mode circuits
01/02/2004EP1374382A1 Switch-mode power supply with autonomous primary inverter
01/02/2004EP1374381A1 Device for transforming a primary voltage into a secondary voltage by means of at least one switched-mode power supply
01/02/2004EP1374380A1 Dc-dc converter.
01/02/2004EP1374379A1 A single reference dc/dc converter
01/02/2004EP1374378A1 Device for voltage conversion
01/02/2004EP1374365A2 Sensor for connection to a bus and method for supplying energy to a sensor connected to a bus
01/02/2004EP1374007A1 Single-stage pfc + ballast control circuit/general purpose power converter
01/02/2004EP1287607B1 Reduced load switching device and method
01/02/2004EP1266545B1 Electronic transformer
01/02/2004EP1243065B1 Resonant gate drive for synchronous rectifiers
01/02/2004CA2434108A1 Drive for a half-bridge inverter
01/01/2004US20040000945 Pumping circuit
01/01/2004US20040000897 Power supply apparatus, switching power supply apparatus, and image forming apparatus
01/01/2004US20040000896 Multimode voltage regulator
01/01/2004US20040000895 Method and apparatus for operating a voltage regulator based on inductor current detection
01/01/2004US20040000894 Multiphase synchronous buck converter with improved power loss balancing
01/01/2004US20040000154 Refrigerated vending machine exploiting expanded temperature variance during power-conservation mode
12/2003
12/31/2003WO2004001938A1 Dc-dc converter
12/31/2003WO2004001937A1 Sc-dc converter
12/31/2003WO2003065558A9 Synthetic ripple regulator
12/31/2003WO2003058804A3 Driver circuit for controlling a resonant converter
12/31/2003WO2003026115A3 Dc converter
12/31/2003WO2003026114B1 Universal energy supply system
12/31/2003WO2003026112B1 Universal power supply system
12/31/2003CN2596658Y Control bus autoamtic voltage regulator
12/31/2003CN2596364Y High voltage wire detector input/output board
12/31/2003CN1464626A High-power high-voltage D. C. electrostatic electric power unit
12/31/2003CN1464625A Power supply for generating positive and negative voltage
12/31/2003CN1133264C Arrangement having switched-mode power supply and microprocessor
12/31/2003CN1133263C Soft switch topology circuit for step-up/step-down voltage conversion
12/30/2003USRE38371 DC-to-DC controller having a multi-phase synchronous buck regulator
12/30/2003US6671195 Load matched alternator system with fault protection
12/30/2003US6671194 Switching power supply unit
12/30/2003US6671193 Power source and arrangement for restricting the short-circuit current or rectifier
12/30/2003US6671190 DC/DC converter
12/30/2003US6671189 Power converter having primary and secondary side switches
12/30/2003US6671188 Soft-switching power supply
12/30/2003US6671143 Technique for limiting current through a reactive element in a voltage converter
12/30/2003US6670844 Charge pump circuit
12/30/2003US6670794 Multi-phase DC-to-DC buck converter with multi-phase current balance and adjustable load regulation
12/30/2003US6670779 High power factor electronic ballast with lossless switching
12/30/2003US6670778 AC power generating apparatus having electrolytic capacitor and ceramic capacitor
12/30/2003US6668451 Methods for trimming electrical parameters in an electrical circuit
12/27/2003CA2433597A1 Supply circuit, in particular for a discharge lamp
12/25/2003US20030235061 Power supply circuit for video display device
12/25/2003US20030235059 Synchronous rectifier drive circuit and power supply including same
12/25/2003US20030234636 Power savings in a voltage supply controlled according to a work capability operating mode of an integrated circuit
12/25/2003US20030234635 Quick-start dc-dc converter circuit and method
12/25/2003US20030234634 Method and system for diagnosing an arm-short of a bi-directional DC/DC converter
12/25/2003US20030234633 Enabling circuit for avoiding negative voltage transients
12/25/2003US20030234581 Method and apparatus for isolating RFI, EMI, and noise transients in power supply circuits
12/24/2003WO2003107722A2 Autonomous solid state lighting system
12/24/2003WO2003107519A1 Switching regulator, especially down converter, and switching/regulating method
12/24/2003WO2003107506A2 Charger for rechargeable batteries
12/24/2003WO2003107505A2 Charger for rechargeable batteries
12/24/2003WO2003106826A2 Improved pulse forming converter
12/24/2003WO2003079526A3 Cmos digital pulse width modulation controller
12/24/2003WO2003073594A3 Method of operating a switched-mode power supply and switched-mode power supply
12/24/2003WO2003065540A3 Charging circuit
12/24/2003CN2595065Y Power supply circuit of portable product
12/24/2003CN1463071A Power source for providing high voltage
12/24/2003CN1132302C Power factor corrector
12/24/2003CN1132301C 自驱动同步整流的方法和电路 Self-driven synchronous rectification method and circuit
12/24/2003CN1132300C Swithcing power source
12/24/2003CN1132299C 具有电流和电压限制的开关模式电源 With a current and voltage limit switch mode power supply
12/24/2003CN1132297C DC/DC converter circuit with zero-current soft switch
12/23/2003US6667893 Phase and frequency shifted controller for interleaved ZVS forward power converter
12/23/2003US6667864 Low-cost power supply device to a plurality of electronic modules installed in a compartment
12/23/2003US6667667 Method for driving at least one inductive load using pulse width modulated control signals
12/23/2003US6667662 Oscillator circuit of internal power generator circuit and control method thereof
12/23/2003US6667651 Voltage supply circuit and control method of the same
12/23/2003US6667606 Power regulation and thermal management circuit
12/23/2003US6667605 Method and apparatus for reducing audio noise in a switching regulator
12/23/2003US6667603 Semiconductor integrated circuit with different operational current modes
12/23/2003US6667602 Low frequency switching voltage pre-regulator
12/23/2003US6667583 Method and apparatus for efficiently driving a low-voltage device from a wide-range input supply
12/23/2003CA2270816C Zero voltage switching buck derived converter
12/23/2003CA2183788C Electronic device for converting electric energy, and supply plant using such device
12/18/2003WO2003105327A2 Dc-dc-converter
12/18/2003WO2003065556A3 Low frequency inverter fed by a high frequency ac current source
12/18/2003WO2003034385A3 System and method for illumination timing compensation in response to row resistance
12/18/2003WO2003034384A3 Method and system for precharging oled/pled displays with a precharge latency
12/18/2003US20030231514 Double resonance electronic converter
12/18/2003US20030231450 Electric-power supply with rectifier
12/18/2003US20030231047 Pulse forming converter
12/18/2003US20030231012 Voltage regulator
12/18/2003US20030231011 Switching device driving apparatus and DC/DC converter incorporating the same
12/18/2003US20030231010 Power-supply device
12/18/2003US20030230766 MOS transistor and switching power supply
12/18/2003US20030230758 Method of increasing an internal operating voltage for an integrated circuit, and integrated circuit
12/18/2003US20030230334 Autonomous solid state lighting system
12/17/2003EP1372253A1 Apparatus and method for reducing BUS voltage stress in a single-stage single switch power factor correction circuit