Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
10/2001
10/18/2001US20010030364 High voltage generating circuit improved in parasitic capacitance of voltage-dividing resistance
10/18/2001DE10017186A1 Device for setting voltages of electrical loads e.g. fan motor, defines voltage applied to load by ratio of two periods in cycle with load and short circuit switches operated in opposite senses
10/18/2001DE10015275A1 Load-driving circuit especially for inductive load, such as electric motor
10/18/2001DE10013672A1 Stromrichterschaltung Converter circuit
10/18/2001CA2372598A1 Miniaturized ac/dc power supply and battery charger
10/17/2001EP1146630A2 Method for regulating the output current and/or the output voltage of a switched mode power supply
10/17/2001EP1146629A2 Control circuit and method for maintaining high efficiency in a buck-boost switching regulator
10/17/2001EP1146628A2 Integrated circuit
10/17/2001EP1146620A2 Driving method of semiconductor switching device and power supply apparatus operated according to said method
10/17/2001EP1145913A2 Vehicle power supply with voltage stabiliser
10/17/2001EP1145604A1 Electronic ballast circuit
10/17/2001EP1145415A1 A synchronous flyback converter
10/17/2001EP1145414A1 Dc-dc converter
10/17/2001EP1145404A1 Method of, and circuit for, controlling the discharge of a battery
10/17/2001EP0932858B1 Hybrid regulator
10/17/2001EP0904619B1 Circuitry for voltage pole reversal
10/17/2001EP0694184B1 Boost converter power supply with reduced losses, control circuit and method therefor
10/17/2001CN2455040Y Intelligent splatter ion pump power-supply controller
10/17/2001CN1318220A Circuit and method for automatic rectification in converters
10/17/2001CN1317866A Zero-voltage zero-current soft-switch converter
10/17/2001CN1317865A Dual-unit step-up switch converter
10/17/2001CN1317864A Current-type chopper with self-excited thyristor
10/16/2001US6304473 Operating a power converter at optimal efficiency
10/16/2001US6304470 Power supply device
10/16/2001US6304469 Charge pump circuit including level shifters for threshold voltage cancellation and clock signal boosting, and memory device using same
10/16/2001US6304467 Progressive start-up circuit for activating a charge pump
10/16/2001US6304466 Power conditioning for remotely mounted microwave power amplifier
10/16/2001US6304464 Flyback as LED driver
10/16/2001US6304463 Single-ended forward converter circuit with quasi-optimal resetting for synchronous rectification
10/16/2001US6304462 Method and apparatus providing a multi-function terminal for a power supply controller
10/16/2001US6304461 DC power converter having bipolar output and bi-directional reactive current transfer
10/16/2001US6304460 Switching DC-to-DC converter utilizing a soft switching technique
10/16/2001US6304256 Display unit
10/16/2001US6304147 Method and circuit for reduced power consumption in a charge pump circuit
10/16/2001US6304068 Bi-directional switched-capacitor based voltage converter
10/16/2001US6304066 Control circuit and method for maintaining high efficiency over broad current ranges in a switching regular circuit
10/16/2001US6304065 Power electronic circuits with all terminal currents non-pulsating
10/16/2001US6304064 Power supply device, power supply method and electronic equipment
10/16/2001US6304046 Driving control circuit of a hood motor
10/16/2001US6304007 Switcher for switching capacitors
10/11/2001WO2001076051A2 Dc power adapter system
10/11/2001WO2001076049A2 Universal input to dc output conversion circuitry
10/11/2001US20010028570 Converter output regulation via channel resistance modulation of synchronous rectifiers
10/11/2001US20010028206 Multilayer piezoelectric transformer
10/11/2001DE10017590A1 Electrical supply device has step-up circuit between operating voltage and voltage regulator inputs activated if battery voltage is below threshold to raise battery voltage at least to threshold
10/11/2001DE10012363A1 Elektronischer Transformator Electronic transformer
10/10/2001EP1142454A1 A high power factor electronic ballast with simplified circuit topology
10/10/2001EP1142095A1 Power transfer unit by electrical energy transformer
10/10/2001EP1142094A1 Overload protection for a switch mode power supply
10/10/2001EP1142093A1 System and method for alternating standby mode
10/10/2001EP1142092A1 Inverter circuit
10/10/2001EP1142091A1 Power supply and method for producing non-periodic complex waveforms
10/10/2001EP1142090A1 Voltage switch-over device
10/10/2001EP1142089A1 Multimode switched-mode power supply
10/10/2001EP1142088A1 High efficiency voltage multiplication device and its use
10/10/2001EP0927450B1 Sample-and-hold circuit for a switched-mode power supply
10/10/2001CN2453603Y Single end normal direction dc to dc inverter
10/10/2001CN1316934A Generator for arc welding machines
10/10/2001CN1316820A Direct current power supply unit using condenser
10/09/2001US6301633 Generic serial interface with automatic reconfigurability
10/09/2001US6301139 Self-driven synchronous rectifier circuit for non-optimal reset secondary voltage
10/09/2001US6301135 Isolated switching-mode power supply control circuit having secondary-side controller and supervisory primary-side controller
10/09/2001US6301132 Compact fast battery charger
10/09/2001US6301129 Switching power supply circuit
10/09/2001US6301128 Contactless electrical energy transmission system
10/09/2001US6301127 Circuit block for power supply
10/09/2001US6300839 Frequency controlled system for positive voltage regulation
10/09/2001US6300820 Voltage regulated charge pump
10/09/2001US6300818 Temperature compensation circuit for semiconductor switch and method of operation thereof
10/09/2001US6300751 Switching regulator control circuit avoiding break-down of the switching element
10/09/2001US6300723 Apparatus for power factor control
10/09/2001US6300589 Plasma cutting or arc welding power supply with phase staggered secondary switchers
10/04/2001WO2001073948A1 A zero-voltage-switch snubber circuit
10/04/2001WO2001073931A1 Lossles switching converter with dc transformer
10/04/2001WO2001073930A1 Method and arrangement for controlling a synchronous rectifier in a dc/dc converter
10/04/2001WO2001073928A2 Method and circuit for reduced power consumption in a charge pump circuit
10/04/2001WO2000022685A9 High voltage power supply using thin metal film batteries
10/04/2001US20010026462 Direct-current power-supply apparatus, control circuit thereof and semiconductor integrated circuit device for power supply
10/04/2001US20010026461 Independent load sharing between parallel inverter units in an AC power system
10/04/2001US20010026458 Power convertor with low loss switching
10/04/2001US20010026187 Booster, IC card having the same, and electronic equipment having the same
10/04/2001US20010026170 Electronic circuit provided with a digital driver for driving a capacitive load
10/04/2001US20010026113 Piezoelectric transformer
10/04/2001US20010026100 System for driving a reactive load
10/04/2001EP1139554A2 Microcontroller operated electric motor soft start using a table drive equation with variable timing
10/04/2001EP1139552A2 Power supply apparatus
10/04/2001EP1139551A2 Charge pump type power supply circuit and driving circuit for display device and display device using such power supply circuit
10/04/2001EP1139330A2 Driving apparatus for display device
10/04/2001EP1138429A2 A welding, plasma or heating power source
10/04/2001EP1138177A1 Modular master-slave power supply controller
10/04/2001EP1138110A1 Llc converter, and method for controlling an llc converter
10/04/2001EP1138107A1 Soft start scheme for resonant converters having variable frequency control
10/04/2001EP1138093A1 High voltage power supply using thin metal film batteries
10/03/2001CN1316174A Flyback converter as LED driver
10/03/2001CN1316127A Power supply device and circuit associated with said power supply device
10/03/2001CN1315778A Public power unit and device for mounting same
10/03/2001CN1072409C Switched-mode power supply with synchronous preconverter
10/02/2001US6297976 Thin, cascade-connected direct current source circuit
10/02/2001US6297974 Method and apparatus for reducing stress across capacitors used in integrated circuits
10/02/2001US6297970 Multiple output synchronous rectifier circuit providing zero volt switch mode operation