Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › H02M 3 - Conversion of dc power input into dc power output
Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
07/2003
07/31/2003US20030141767 Method of and device for temperature-dependent power control of electrical device
07/31/2003US20030141764 Real-time digital voltage sag compensator
07/31/2003US20030141763 Current regulator
07/31/2003US20030141530 Semiconductor device and manufacturing method thereof
07/31/2003US20030141529 Semiconductor apparatus having a built-in-electric coil and a method of making the semiconductor apparatus
07/30/2003EP1331723A2 Low output voltage, high current, half-bridge, series-resonant, multiphase, DC-DC power supply
07/30/2003EP1331721A2 Method and apparatus for a switch mode power supply that genarates a high pulse width modulation gain while maintaining low noise sensitivity
07/30/2003EP1331720A2 Programmable dual mode hysteretic power output controller
07/30/2003CN2563825Y 12V/18V compatible electromagnetic lock control box
07/30/2003CN1116733C Circuit and method for making on-time of switching regulator constant
07/30/2003CN1116732C Dynamic regulator for DC-to-DC power converter and related methods
07/29/2003US6600670 Switching power supply capable of ac to dc conversion
07/29/2003US6600668 Crowbar circuit for low output voltage DC/DC converters
07/29/2003US6600300 Digitally controlled DC/DC converter
07/29/2003US6600298 Switching DC-DC converter with the output voltage changing inversely to any change in the converter inductor current
07/29/2003US6600296 Method and semiconductor die with multiple phase power converter
07/29/2003US6600295 Electric power converter with continuous stable noise reduction
07/24/2003WO2003061125A1 Power modulator
07/24/2003WO2003061123A2 A switching circuit and a method of operation thereof
07/24/2003WO2003061106A2 Power source apparatus
07/24/2003WO2003061105A1 Switched-mode power supply unit
07/24/2003WO2003061104A1 Voltage converter control apparatus, voltage conversion method, storage medium, program, drive system, and vehicle having the drive system
07/24/2003WO2003061103A2 A switching circuit and a method of operation thereof
07/24/2003WO2003060619A1 Electronic ballast with ignition and operation control
07/24/2003WO2003059681A2 Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage
07/24/2003WO2003038976A3 Synchronous rectifier circuit
07/24/2003WO2003033749A8 Matrix element precharge voltage adjusting apparatus and method
07/24/2003WO2003028196A3 Converter mounting
07/24/2003US20030137856 Method of switching synchronization of parallel-connected converter system
07/24/2003US20030137853 Multi-stage DC-DC converter
07/24/2003US20030137787 Innovative regulation characteristics in multiple supply voltages
07/24/2003US20030137341 Method and system for charge pump active gate drive
07/24/2003US20030137286 Capacitorless DC-DC converter
07/24/2003US20030137198 Power supply having power saving mode
07/24/2003DE20302521U1 Voltage supply controller with multi-period switching mode has mutual clock, power transfer controller, dimming power controller, burst clock controller and logic controller
07/23/2003EP1330015A1 Magnetic core, coil component comprising it, and power source circuit
07/23/2003EP1329914A2 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components without requiring additional windings
07/23/2003EP1329786A1 Method for powering consuming appliances with low supply voltage
07/23/2003EP1329016A1 Converter control
07/23/2003EP1328958A1 Magnet, vacuum electron devices and communication systems
07/23/2003EP0878050B1 Ac/dc converter
07/23/2003CN2562490Y Switch power supply
07/23/2003CN1431760A Dual positive excitated DC-DC power transfer device with soft switch in three electrical levels
07/23/2003CN1431759A DC-DC power transfer device with zero voltage soft switch
07/23/2003CN1115762C Positively exciting circuit unit
07/23/2003CN1115761C Buck boost switching regulator
07/22/2003USRE38196 Control of stored magnetic energy in power converter transformers
07/22/2003US6597603 Dual mode high voltage power supply for providing increased speed in programming during testing of low voltage non-volatile memories
07/22/2003US6597592 Apparatus and method for turning off BJT used as controlled rectifier
07/22/2003US6597589 Power converter
07/22/2003US6597588 Insulating-type switching electric power source device
07/22/2003US6597587 Current driven synchronous rectifier with energy recovery using hysterisis driver
07/22/2003US6597586 Switched mode power supply responsive to current derived from voltage across energy transfer element input
07/22/2003US6597235 Voltage boost circuits using multi-phase clock signals
07/22/2003US6597221 Power converter circuit and method for controlling
07/22/2003US6597210 Apparatus and method for control and driving BJT used as controlled rectifier
07/22/2003US6597159 Pulse width modulation controller having frequency modulation for power converter
07/22/2003US6597158 Adjustable current consumption power supply apparatus
07/22/2003US6597157 Parallel phased switch control
07/22/2003US6597156 Arrangement and method for generating high voltage from a low-voltage supply source
07/22/2003US6597155 Highly efficient self-oscillation boost DC/DC converter
07/22/2003US6597075 DC power supply and battery charge system
07/22/2003CA2296205C Switching power supply unit
07/22/2003CA2295382C Switching power supply unit
07/17/2003WO2003058804A2 Driver circuit for controlling a resonant converter
07/17/2003WO2003058800A1 Dc-dc converters providing reduced deadtime
07/17/2003WO2003058799A1 Power factor improving converter and control method thereof
07/17/2003WO2003058798A1 Pwm controller with single-cycle response
07/17/2003WO2003058370A1 Logic controlled high voltage resonant switching power supply
07/17/2003US20030133316 Variable frequency electric signal generator, automatic control and low cost computing means
07/17/2003US20030133313 Synchronous rectifier circuit capable of working as a high-efficiency DC/DC converter
07/17/2003US20030133240 Power supply system
07/17/2003US20030132810 High-voltage oscillator having a fast response time
07/17/2003US20030132739 Power converters with primary-only feedback
07/17/2003US20030132738 Method and apparatus for maintaining an approximate constant current output characteristic in a switched mode power supply
07/17/2003US20030132736 Power conversion system
07/17/2003US20030132668 Programmable power supply to simultaneously power a plurality of electronic devices
07/17/2003US20030132211 Method for regulating and/or controlling a welding current source with a resonance circuit
07/16/2003EP1328053A2 Power supply system
07/16/2003EP1327296A1 Controllable direct current power source
07/16/2003CN1430806A DC to DC converter method and circuitry
07/16/2003CN1430327A Switch power supply and its control circuit
07/16/2003CN1430326A Bipolar supply voltage generator and its semiconductor device
07/16/2003CN1430325A Switch synchronization method of parallel converter system.
07/16/2003CN1430064A Zero-cross detection circuit
07/16/2003CN1114987C Single-stage AC/DC converter with power factor correction
07/16/2003CN1114845C Chopper-amplifier for voltage of photovoltaic power source, in particular for timepiece
07/15/2003US6594161 Power converter having independent primary and secondary switches
07/15/2003US6594160 Power supply unit including an inverter
07/15/2003US6594159 High efficiency power converter
07/15/2003US6594157 Low-loss magnetic powder core, and switching power supply, active filter, filter, and amplifying device using the same
07/15/2003US6593800 Semiconductor integrated circuit device
07/15/2003US6593725 Feed-forward control for DC-DC converters
07/15/2003US6593724 Polyphase PWM converter with high efficiency at light loads
07/15/2003US6593722 Charging system for battery-powered drive system
07/15/2003US6593642 Semiconductor device provided with potential transmission line
07/15/2003US6593546 Arc welding generator with input voltage adapting regulator stage
07/15/2003US6591693 Universal input to DC output conversion circuitry
07/10/2003WO2003056884A1 Electronic ballast with rail voltage switching
07/10/2003WO2003056537A1 Electronic ballast with low voltage output
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