Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
10/2004
10/27/2004CN1173457C Switch supply unit with active clamping circuit
10/27/2004CN1173455C Alternatively parallel three-level converter excited by positive voltage
10/26/2004US6809953 Potential generating circuit, potential generating device and semiconductor device using the same, and driving method thereof
10/26/2004US6809943 Programmable power supply
10/26/2004US6809941 Power system having a power factor correction circuit
10/26/2004US6809939 Synchronous rectifying control circuit of flyback switching power supply
10/26/2004US6809923 Power supply unit
10/26/2004US6809678 Data processor controlled DC to DC converter system and method of operation
10/26/2004US6809573 Circuit for generating high voltage
10/26/2004US6809560 Load sensing circuit for a power MOSFET switch
10/26/2004US6809503 Systems and methods for conserving energy in a switching circuit
10/26/2004US6809498 Power supply apparatus and electronic equipment
10/26/2004US6809387 Power switching device
10/21/2004WO2004091069A1 Decoupling circuits
10/21/2004WO2004091068A1 Decoupling circuits
10/21/2004WO2004091052A2 Method and apparatus for substantially reducing electrical displacement current flow between input and output circuits coupled to input and output windings of an energy transfer element
10/21/2004WO2004047263A3 Power converter circuitry and method
10/21/2004WO2003102708A3 Voltage regulator with dynamically boosted bias cuttent
10/21/2004US20040210349 Method and apparatus for controlling a power supply
10/21/2004US20040208667 Power supply control apparatus and electric device
10/21/2004US20040208042 Power output stage for capacitive loads
10/21/2004US20040208032 Microminiature power converter
10/21/2004US20040208029 Method and apparatus for transmitting data
10/21/2004US20040208028 Power system with zero voltage switching
10/21/2004US20040208027 Power system with coupled inductor
10/21/2004US20040208026 Pumping voltage generator
10/21/2004US20040208025 Loosely coupled parallel resonant converter
10/21/2004US20040208024 Switching type AC adapter circuit with a latch protection circuit
10/21/2004US20040208023 Switched mode power supply responsive to current derived from voltage across energy transfer element input
10/21/2004US20040208021 Switching power supply
10/21/2004US20040207459 Charge pump bypass
10/21/2004US20040207458 Voltage booster power supply circuit
10/21/2004US20040207381 Method and apparatus providing final test and trimming for a power supply controller
10/21/2004US20040207378 Enabling circuit for avoiding negative voltage transients
10/21/2004US20040207377 Solenoid driving device
10/21/2004US20040207376 Digital dynamic trace adjustment pulse width modulate controller
10/21/2004US20040207375 Power supply apparatus
10/21/2004US20040207373 Low-cost DC-DC voltage switching converter regulator device
10/21/2004US20040207372 DC-DC converter control circuit and DC-DC converter
10/21/2004US20040207371 Power system with phased controlled inrush limiter
10/21/2004US20040207370 Booster circuit and method for controlling the same
10/21/2004US20040207362 Mobile type power supply, connection device, and carried type electronic equipment
10/21/2004US20040207349 Drive voltage generating apparatus and method for controlling the same
10/21/2004DE4426258B4 Umrichter Inverter
10/21/2004DE10314842A1 Stromerfassungsschaltung für einen DC/DC-Wandler Current detecting circuit for a DC / DC converter
10/21/2004DE102004017514A1 Überstromschutzschaltung für geschaltete Stromversorgung The overcurrent protection circuit switched power
10/20/2004EP1469584A2 Non-contact electrical power transmission system having function of making load voltage constant
10/20/2004EP1469583A2 Switch mode power converter, charger device and portable electrical tool
10/20/2004EP1469582A1 Booster circuit and method for controlling the same
10/20/2004EP1469479A2 Programming voltage protection in non-volatine memory system
10/20/2004EP1468485A1 Method and apparatus for maintaining a constant load current in a switch mode power supply
10/20/2004EP1468484A2 Multicellular dc/dc voltage converter with protection switches
10/20/2004CN2650393Y Isolated self-oscillation reverse exciting inverter
10/20/2004CN2650385Y Soft-changing clamping device
10/20/2004CN1539193A 同步整流器电路 Synchronous rectifier circuit
10/20/2004CN1538806A Reliable board mounted power module
10/20/2004CN1538608A Switch power-supply device
10/20/2004CN1538606A Low voltage largecurrent modle power source
10/20/2004CN1538453A Booster power circuit
10/20/2004CN1172427C Circuit of switching power supply with secondary power supply
10/19/2004US6807075 Start-up circuit for switched mode power supply
10/19/2004US6807073 Switching type power converter circuit and method for use therein
10/19/2004US6807072 Electric power conversion device with push-pull circuitry
10/19/2004US6807071 Transformer isolated driver
10/19/2004US6807070 Resonant converter with phase delay control
10/19/2004US6807069 Direct current converter with integrated transformer windings and output voltage filtering coils on the same magnetic core
10/19/2004US6806761 Integrated charge pump circuit with low power voltage regulation
10/19/2004US6806760 Low-voltage booster circuits and methods of operation thereof
10/19/2004US6806736 Circuit for a lossless capacitive pump
10/19/2004US6806691 Regulator circuit for independent adjustment of pumps in multiple modes of operation
10/19/2004US6806689 Multi-phase buck converter
10/14/2004WO2004088829A1 Switching power supply apparatus
10/14/2004WO2004088828A2 Phase-shifted resonant converter having reduced output ripple
10/14/2004WO2004047268A3 Power converter circuitry and method
10/14/2004US20040204173 Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system
10/14/2004US20040201937 Overcurrent protection circuit for switching power supply
10/14/2004US20040201281 Single-inductor multiple-output switching converters in PCCM with freewheel switching
10/14/2004DE202004012817U1 Passive isolator circuit for DC signals transmission, uses input-side voltage monitoring circuit with reference voltage comparator and switching device for input overvoltages
10/14/2004DE10312921A1 Schaltungsanordnung, Zusatzmodul und Solaranlagen-System Circuitry, additional module and solar system
10/14/2004DE10303435A1 Method for energising semiconductor switch in switching converter, e.g. power MOSFET in bulk converter, with load path of switch in series to energy storage element in converter, providing output voltage from input voltage
10/14/2004DE10051936B4 Spannungspumpe mit Einschaltsteuerung Voltage pump with Power Up
10/13/2004EP1466399A1 Isolated converter with synchronized switching leg
10/13/2004EP1466224A1 Electronic ballast with ignition and operation control
10/13/2004EP1290537B1 Power sequencer control circuit
10/13/2004EP0806074B1 Switching power supply with means for recovering leakage energy from the transformer
10/13/2004CN2648694Y Convension exchange power source supply device with primary/secondary sync control
10/13/2004CN1536750A Switch type AC additional circuit
10/13/2004CN1536749A Recovery time from zero to high load in extra-light DC-DC converter
10/13/2004CN1536748A Feedback bias control circuit of synchronous rectifier
10/13/2004CN1171510C Ballast for discharge lamp
10/13/2004CN1171373C Power supply
10/13/2004CN1171130C Overload protection method for circuit device and readjusting circuit elements
10/12/2004US6804125 Isolated drive circuitry used in switch-mode power converters
10/12/2004US6804091 Switching regulator transient suppressor
10/12/2004US6803807 Negative voltage output charge pump circuit
10/12/2004US6803752 Polyphase PWM regulator with high efficiency at light loads
10/12/2004US6803750 Multiphase synchronous buck converter with improved output current sharing
10/12/2004US6803749 Power supply system and process including sub-switching element control
10/12/2004US6803730 Single stage PFC + ballast control circuit/general purpose power converter
10/12/2004US6803677 System for providing multiple power conversion operations