Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
01/2005
01/27/2005US20050018457 DC regulated power supply
01/27/2005US20050018455 Voltage converter for a power supply
01/27/2005US20050018452 Contactless power supply
01/27/2005US20050017805 Isolated converter with synchronized switching leg
01/27/2005US20050017803 Switched mode power amplifier
01/27/2005US20050017792 Charge pump circuit capable of completely cutting off parasitic transistors
01/27/2005US20050017767 Apparatus and method for noise sensitivity improvement to a switching system
01/27/2005US20050017764 Drive circuit for a switch in a switching converter
01/27/2005US20050017706 Method and apparatus for low cost, current and voltage sense circuits with voltage drop
01/27/2005US20050017703 Synthetic ripple regulator
01/27/2005US20050017702 Switching power converter method
01/27/2005US20050017700 Voltage regulator using a transimpedance block to measure output
01/27/2005US20050017699 Series interleaved boost converter power factor correcting power supply
01/27/2005US20050017698 Switched mode power supply with delay-compensated current mode control
01/27/2005US20050017695 Opposed current converter power factor correcting power supply
01/27/2005US20050017583 Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency
01/27/2005DE19605493B4 Spannungsversorgungsvorrichtung Power supply device
01/27/2005DE10330605A1 Schaltnetzteil Switching power supply
01/27/2005DE10328623A1 Converter circuit for (dis)charge of capacitive and/or piezoelectric adjuster for motor vehicle IC engine fuel injection system, comprises bridge circuit coupled to small buffer capacitor, larger storage capacitor and transformer
01/27/2005DE10326573A1 Integrated current supply device for data equipment, has a current supply feeder unit, a rectifier unit and a unit for increasing voltage
01/27/2005CA2530768A1 Electronic device display system and method
01/26/2005EP1501179A1 Freely oscillating flyback converter with current and voltage limitation
01/26/2005EP1501178A2 A circuit for driving a load, in particular a direct-current electric motor
01/26/2005EP1501177A2 Power supply with power factor correction
01/26/2005EP1501176A2 Power supply with power factor correction
01/26/2005EP1500999A1 Power factor correction circuit
01/26/2005EP1500182A2 Synchronous and bi-directional variable frequency power conversion systems
01/26/2005EP1500181A1 Switching power supply with a snubber circuit
01/26/2005EP1500178A1 A power supply system and apparatus
01/26/2005EP1500177A2 Circuit arrangement for generating dc voltages
01/26/2005EP1379929A4 Amplifier system with on-demand power supply boost
01/26/2005EP0793334B1 Dc-dc converter circuit and inductive load driver using it
01/26/2005CN2674759Y Single phase ac multifunction electricity saver
01/26/2005CN2674758Y Push-pull circuit mode type transformer
01/26/2005CN2674757Y Voltage converting circuit for injection molder
01/26/2005CN2674756Y Low-common mode interference power converter
01/26/2005CN1571255A Synchronous rectification reverse-flow preventing circuit and method for parallel synchronous rectification converter
01/26/2005CN1571254A Two-way DC-DC converter
01/26/2005CN1571235A A uniform electric energy quality regulator using DC energy-storage to proceed electric isolation
01/26/2005CN1186874C Control method of charging exciting circuit
01/26/2005CN1186873C Apparatus and method for driving switching elements
01/25/2005US6847250 Pumping circuit for outputting program voltage and program verify voltage of different levels
01/25/2005US6847222 Apparatus for measuring voltage fluctuation waveform in semiconductor integrated circuit, and semiconductor integrated circuit having function for measuring voltage fluctuation waveform
01/25/2005US6847197 System and method for detection of zero current condition
01/25/2005US6847174 Drive for a half-bridge inverter
01/25/2005US6847131 Power supply device and electronic equipment
01/20/2005WO2005006530A1 Power supply for discharge
01/20/2005WO2005006527A1 Power supply and its controlling method
01/20/2005WO2005006526A1 Switched mode power supply
01/20/2005WO2005006525A1 Switched mode power supply
01/20/2005WO2005006524A2 Voltage converter
01/20/2005WO2005006392A2 Low voltage circuit for interfacing with high voltage analog signals
01/20/2005WO2005006344A1 Booster circuit
01/20/2005WO2004088828A3 Phase-shifted resonant converter having reduced output ripple
01/20/2005US20050013447 Supplying electrical power
01/20/2005US20050013148 Universal power supply system
01/20/2005US20050013146 Parallel feed-forward compensating type power factor correction circuit for a three-phase power source
01/20/2005US20050013143 Power supply for power factor correction and driving method thereof
01/20/2005US20050012739 Semiconductor device and display device
01/20/2005US20050012584 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
01/20/2005US20050012542 Power supply
01/20/2005US20050012541 Apparatus and circuit for power supply, and apparatus for controlling large current load
01/20/2005US20050012497 Device for measuring a chopped current
01/20/2005US20050012492 Digital multiphase control system
01/20/2005US20050012473 DC-DC converter and device for operation of a high pressure discharge lamp using said converter
01/20/2005DE10329829A1 Switching power supply with synchronization circuit, for TV receiver, has transformer with primary and at least one secondary, switching transistor in series with primary
01/20/2005DE102004024914A1 Motorantriebsgerät Motor drive unit
01/19/2005EP1499165A2 Load driving device and portable apparatus utilizing such driving device
01/19/2005EP1499017A2 Electrical power supply
01/19/2005EP1499005A1 Freely oscillating flyback converter with current and voltage limitation
01/19/2005EP1499004A1 Method for controlling a synchronous rectifier and synchronous rectifier controller
01/19/2005EP1498012A1 Trigger circuit for an electronic flash device
01/19/2005EP1497910A1 Switched-mode power supply arrangement
01/19/2005EP1497908A1 Circuit arrangement with power factor correction, and corresponding appliance
01/19/2005EP1374007A4 Single-stage pfc + ballast control circuit/general purpose power converter
01/19/2005EP1299680A4 Temperature controller for a refrigerated vending machine
01/19/2005CN2672956Y DC dropping voltage stabilizer
01/19/2005CN2672955Y Device for providing buckle power
01/19/2005CN2672954Y Device for prividing buckle power
01/19/2005CN1568569A Voltage detection circuit and internal voltage generation circuit using same
01/19/2005CN1568568A Method and circuit for reducing losses in DC-DC converters
01/19/2005CN1567690A Synchronous rectification supply converter controlled by current transformer
01/19/2005CN1567689A A current regulator for charging and discharging of superconducting magnet
01/19/2005CN1567688A Voltage stabilizer of charge pump
01/19/2005CN1567687A Morbid operation preventing device of boosting type converter
01/19/2005CN1567686A Power transformation installation of hanging unit
01/19/2005CN1185781C Forward converter circuit having reduced switching losses
01/19/2005CN1185780C DC-DC transfer circuit, power selection circuit and equipment
01/19/2005CN1185156C 电梯控制装置 The elevator control apparatus
01/18/2005US6845021 Multi-output DC-DC converter
01/18/2005US6845019 Flyback converter
01/18/2005US6845018 Power circuit and method for controlling drive and control voltages of an image formation apparatus
01/18/2005US6844760 LED drive circuit
01/18/2005US6844739 Maximum power point tracking method and device
01/18/2005US6844710 Controller for DC to DC converter
01/18/2005US6844702 System, method and apparatus for contact-less battery charging with dynamic control
01/13/2005WO2005004316A1 Dc/dc converter using bipolar transistor, method of manufacturing the same and dc power supply module using the same
01/13/2005WO2005004304A1 Booster
01/13/2005WO2005004301A1 A system and method for charging a battery
01/13/2005WO2004073147A3 Electric converter for fuel cell