Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
01/1999
01/05/1999US5856712 Uninterruptible power supply method
01/05/1999CA2081335C Direct-current converter with current limiting
12/1998
12/30/1998WO1998059413A1 Integrated uninterruptible power supply protection system with novel inverter circuit
12/30/1998WO1998044622A3 Digitally controlled switched-mode voltage converter
12/30/1998EP0887912A1 Power supply
12/30/1998EP0887868A2 Energy conversion system with heat recovery
12/30/1998EP0886911A1 Ups card
12/30/1998CN1203704A AC-DC power supply
12/30/1998CA2290403A1 Integrated uninterruptible power supply protection system with novel inverter circuit
12/29/1998US5854742 Logarithmic power compensation for a switching power supply
12/29/1998US5854567 Low loss integrated circuit with reduced clock swing
12/29/1998CA2163498C Voltage and current mode power regulator
12/24/1998DE19725645A1 Pumpstützdrossel Pump supporting inductor
12/24/1998DE19725440A1 DC/DC converter
12/23/1998WO1998058526A1 Pump support choke
12/23/1998WO1998043336A3 A plant for transmitting electric power including vsc (voltage source converter) and dc/dc converter
12/23/1998WO1998038727A3 Dc-dc converter with multiple outputs turned on and off in certain sequence
12/23/1998EP0886200A2 Circuit arrangement for generating a load-independent DC voltage
12/23/1998EP0885480A1 Circuit arrangement for switching network sections with several load-independent output voltages
12/23/1998EP0801842B1 Circuit for driving a converter
12/23/1998CN1202759A Soft switch circuit topology for power conversion
12/22/1998US5852632 Recovery of the propagation delay in a PWM circuit
12/22/1998US5852557 Switching converter utilizing dual switch outputs
12/22/1998US5852555 Dual inverter power supply
12/22/1998US5852552 High voltage generator with a latch-up prevention function
12/22/1998US5852550 Switched-mode power supply circuit having a very low power stand-by mode
12/22/1998US5852549 Power-supply circuit
12/22/1998US5852538 Power element driving circuit
12/20/1998CA2208380A1 Integrated uninterruptible power supply protection system with novel inverter circuit
12/17/1998WO1998057417A1 A switched-mode power supply
12/17/1998WO1998057243A1 Reboost converter
12/16/1998EP0884830A2 Power supply unit with a pulse width modulated inverter, in particular for an X-ray generator
12/16/1998EP0884829A1 Single ended forward converter with synchronous rectification and delay circuit in phase-locked loop
12/16/1998EP0884746A2 Synchronous switching regulator which employs switch voltage-drop for current sensing
12/16/1998EP0883926A1 High-efficiency electric motor of electronic commutation type
12/16/1998CN1202067A Control of output power of DC-DC converter upon varying switching frequency
12/16/1998CN1041263C Switch mode powder supply circuit with reduced loading of mains by harmonics
12/15/1998US5850337 Magnetic-free DC/DC converter and method of operation thereof
12/15/1998US5850113 Super capacitor battery clone
12/10/1998WO1998056100A1 Single-barrier closed loop dc-to-dc converter and method
12/10/1998WO1998040961A3 A convertor, a power supply, and a battery charger
12/10/1998DE19756088A1 Power supply with synchronous and asynchronous operating modes
12/09/1998EP0883231A2 Power supply device
12/09/1998EP0883230A2 Switch control in quantized power converters
12/09/1998EP0883051A1 System for supplying a regulated voltage
12/09/1998CN1201563A Battery coupler
12/09/1998CN1201291A Power conversion device having voltage driven switch element
12/08/1998US5847950 Control system for a power supply
12/08/1998US5847949 Boost converter having multiple outputs and method of operation thereof
12/08/1998US5847946 Voltage booster with pulsed initial charging and delayed capacitive boost using charge-pumped delay line
12/08/1998US5847941 Switching power supply system and process
12/08/1998US5847940 For powering a load from an input voltage
12/08/1998US5847554 Synchronous switching regulator which employs switch voltage-drop for current sensing
12/08/1998US5847553 Current booster for PC card
12/08/1998US5847550 Exit sign having a pulse switching tandem flyback voltage converter and a backup battery
12/08/1998US5847549 Power converter stabilization loop
12/08/1998US5847548 Current-sharing passive snubber for parallel-connected switches and high power boost converter employing the same
12/08/1998US5847532 Switching circuit for an inductive load
12/03/1998WO1998054827A1 Method and circuit for operating a transistor as a rectifier
12/03/1998WO1998054826A1 Composite transformer for self-oscillator
12/03/1998WO1998054825A1 Adjustable voltage converter utilizing a charge pump
12/02/1998EP0881759A2 Sub-resonant series resonant converter having improved form factor and reduced emi
12/02/1998EP0881758A2 Efficient power conversion
12/02/1998EP0881737A2 Electric charge transfer
12/02/1998EP0881647A1 Transformer with controlled interwinding coupling and controlled leakage inductances and circuit using such transformer
12/02/1998EP0880783A1 Low supply voltage negative charge pump
12/02/1998EP0764297A4 High-efficiency power supply
12/02/1998EP0669053B1 Active clamping circuit
12/02/1998CN1200594A Low cost high efficiency power converter
12/02/1998CN1041039C Switching power supply
12/01/1998US5844790 Split-boost converter having damped EMI isolation filter and method of operation thereof
12/01/1998US5844787 Isolated flyback secondary inductor convertor
12/01/1998US5844786 DC-DC converter circuit and inductive load driver using it
12/01/1998US5844550 Man-machine interface
12/01/1998US5844403 Power apparatus
11/1998
11/26/1998WO1998053548A1 Method and circuit for disconnecting a converter
11/26/1998WO1998053547A1 Voltage transformer
11/26/1998WO1998053378A1 Monolithic dc to dc converter
11/26/1998WO1998043344A3 Switched-mode power supply
11/26/1998DE19721787A1 Slope compensation procedure in logic system component
11/25/1998EP0880220A2 A phase staggered full-bridge converter with soft-PWM switching
11/25/1998EP0880087A2 Power supply circuit and CCD camera using same
11/25/1998EP0880086A1 A control circuit and method for a temperature sensitive device
11/25/1998EP0843822A4 A bidirectional load and source cycler
11/25/1998EP0692154B1 Clocked current supply
11/25/1998CN1200204A Constant-current/constant-voltage battery charger
11/25/1998CN1040931C High efficient voltage doubler
11/24/1998US5841725 Charge pump circuit for a semiconductor memory device
11/24/1998US5841703 Method and apparatus for removal of VT drop in the output diode of charge pumps
11/24/1998US5841648 Adjustable voltage converter utilizing a charge pump
11/24/1998US5841643 For use in a switching voltage regulator
11/24/1998US5841642 Tuned switch-mode power supply with current mode control
11/24/1998US5841641 Protected zero-crossing detection using switching transistor's on-resistance
11/24/1998US5841314 Charge pump type of negative voltage generator circuit and method
11/24/1998US5841313 Switch with programmable delay
11/24/1998US5841268 Multi-resonant soft switching snubber network for DC-to-DC converter
11/19/1998WO1998052273A1 Switched-mode power supply, an electric shaver, and a method of converting direct voltages
11/19/1998DE19720948A1 Vorrichtung zur Spannungswandlung Device for voltage conversion
11/18/1998EP0878050A1 Ac/dc converter
11/18/1998CN1040823C Switch mode power supply circuit with output supply voltage control and overcurrent protection functions