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)
06/2012
06/06/2012CN1925290B Positive-negative voltage conversion circuit
06/06/2012CN102487249A Switching power supply device and image forming apparatus including switching power supply device
06/06/2012CN102487247A Power supply and electric arc machining power supply
06/06/2012CN102487246A Switching power supply, control method of switching power supply and PWM (pulse width modulation) control chip
06/06/2012CN102487245A Simulation system of microcomputer relay protection logical test signal system
06/06/2012CN102487244A High voltage generator and method of generating high voltage
06/06/2012CN102487243A Power supply and power-supply system provided with plurality of power supplies
06/06/2012CN102487242A Charge pump feedback system with time sequence control function
06/06/2012CN102487241A Boosting power supply circuit for electrocardiogram recorder
06/06/2012CN102487215A Power device using module current to control parallel running of circuit
06/06/2012CN102487199A Soft switching grid-connected inverter
06/06/2012CN101917128B Rectifier circuit for realizing voltage clamp of rectifier tube by using double-power transformer
06/06/2012CN101847981B Multi-input comparator and power switching circuit
06/06/2012CN101795065B Voltage reduction circuits of high power switching power supply
06/06/2012CN101777840B Buck-boost composite DC/DC converter
06/06/2012CN101728961B AC/DC convertor
06/06/2012CN101719721B Low-voltage power supply
06/06/2012CN101697456B Rectifying circuit capable of realizing voltage clamping of rectifier tube by using two power transformers
06/06/2012CN101686017B Switching power supply
06/06/2012CN101685963B Power supply method, power supply device and power supply system
06/06/2012CN101677214B Switching mode power source
06/06/2012CN101572485B Intelligent driving control method and device for secondary synchronous rectifier
06/06/2012CN101540544B Circuit used for drive control of flow current tube of direct current/direct current converter
06/06/2012CN101534057B A double-isolation boosting and step-down multi-input direct current convertor
06/06/2012CN101501973B Controller for electric vehicle
06/06/2012CN101471339B Integrated circuit and correlation technique as well as chip size package integrated circuit
06/06/2012CN101350562B Method and system for compensating inductance deviation and implementing circuit elements thereof
06/06/2012CN101283502B Power supply device and electronic device provided with same
06/06/2012CN101266868B Ultra-small electric power conversion device
06/06/2012CN101262173B Voltage boosting power supply circuit for monitoring charging voltage with predetermined voltage to detect boosted voltage, and boosted voltage control method
06/06/2012CN101257253B Step-up switching power supply device, and electronic device provided therewith
06/06/2012CN101048930B Charge pumping circuit
06/06/2012CN101017984B Battery charging system and method
06/06/2012CA2757275A1 Synchronous rectifier bi-directional current sensor
06/05/2012US8194427 Switching power supply device
06/05/2012US8194426 DC converter with independently controlled outputs
06/05/2012US8194425 Frequency modulation device and switching mode power supply using the same
06/05/2012US8194424 Automatic zero voltage switching mode controller
06/05/2012US8194423 Method and apparatus to reduce audio frequencies in a switching power supply
06/05/2012US8194422 Method and apparatus for digital control of a switching regulator
06/05/2012US8194421 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter
06/05/2012US8194420 Method for controlling a switching regulator and related switching regulator
06/05/2012US8194419 Switching mode power supply for reducing standby power
06/05/2012US8194418 Frequency-hopping control method and module, and DC/DC converter
06/05/2012US8194417 Two-stage switching power supply
06/05/2012US8193791 Maximum output power control of a flyback converter
06/05/2012CA2759767A1 Hysteretic voltage converter with offset voltage correction
06/03/2012CA2756180A1 Synchronous rectifier bi-directional converter
06/01/2012DE202007019412U1 Primärseitig eingestelltes Stromversorgungssystem mit Ausgabe eines konstanten Stroms Adjusted primary side power supply system with a constant current output
05/2012
05/31/2012WO2012070512A1 Insulated power source device and lighting device
05/31/2012WO2012068929A1 Switch-mode power supply control system and method thereof
05/31/2012WO2012068823A1 Power modulator
05/31/2012WO2012024540A3 Switching circuits for extracting power from an electric power source and associated methods
05/31/2012WO2012024538A3 Switching circuits for extracting power from an electric power source and associated methods
05/31/2012WO2012024537A3 Switching circuits for extracting power from an electric power source and associated methods
05/31/2012WO2012024536A3 System, method, module, and energy exchanger for optimizing output of series-connected photovoltaic and electrochemical devices
05/31/2012US20120134707 Power supply system and image forming apparatus including the same
05/31/2012US20120134705 Switching power supply device and image forming apparatus with switching power supply device
05/31/2012US20120134182 Control circuits and methods for switching mode power supplies
05/31/2012US20120134181 Gate driving power supply system and inverter control circuit
05/31/2012US20120134180 Dc/dc converter
05/31/2012US20120133206 Method of forming a power supply controller and system therefor
05/31/2012DE202012004052U1 Buck-Konverter zum Bereitstellen eines Stroms für mindestens eine LED Buck converter for providing a current for at least one LED
05/31/2012DE112009004513T5 Leistungsfaktorkorrekturwandler Power factor correction converter
05/31/2012DE112008000467B4 Antriebssteuerungsgerät für rotierende elektrische Maschinen und Fahrzeug Drive controller for rotating electrical machines, and vehicle
05/31/2012DE102011086696A1 Ladungspumpen mit verbesserten latch-up-charakteristika Charge pump with improved latch-up characteristics
05/31/2012DE102011055716A1 Switching power supply for electronic device, has power supply unit to supply power to control unit which controls ON/OFF state of switching device, in response to reception of control signal indicating operating state of load circuit
05/31/2012DE102011012830A1 Hysterese-Stromumwandler mit Kalibrierschaltung Hysteresis current transformer with calibration
05/30/2012EP2458725A1 Electric energy conversion system and method for operating same
05/30/2012EP2458723A1 A circuit for a resonant converter
05/30/2012EP2457779A1 Vehicular power supply system
05/30/2012EP2457317A2 Improvements relating to dc-dc converters
05/30/2012EP2457316A1 Method and circuit for controlling a step-up converter in a circuit for correcting a power factor
05/30/2012EP2457314A2 Method and circuit for correcting power factor
05/30/2012EP1297614B1 Electronic transformer
05/30/2012CN202261130U Rapid wave chopping device of driving system of switched reluctance motor
05/30/2012CN202261063U High-efficient multi-source photovoltaic inverter
05/30/2012CN202261059U Fly-back switch power supply
05/30/2012CN202261054U DSP controlled high-voltage direct current power supply module
05/30/2012CN202261053U Switching power supply for speaker
05/30/2012CN202261035U Simple miniature fixed positive output high-voltage power supply circuit
05/30/2012CN202261034U Redundancy power supply for master control board of alternative-current driver
05/30/2012CN202261033U LED illuminating lamp driving circuit for electric bicycle
05/30/2012CN202261032U 12V high-power direct-current (DC) controller
05/30/2012CN202261031U 24V high-power direct-current controller
05/30/2012CN202261030U Switch power circuit for one-phase electronic electric energy meter
05/30/2012CN202261029U Switch power supply circuit with overvoltage protection
05/30/2012CN202261028U Multiphase and misphase parallel two-stage converter
05/30/2012CN202261027U Driving circuit for synchronous rectifier in full-bridge rectifying circuit
05/30/2012CN202261026U Wide-range input and multi-path isolation output high voltage power circuit
05/30/2012CN202261025U Isolation sampling circuit based on fly-back switch power source
05/30/2012CN202261024U Intelligent type DC high voltage generator
05/30/2012CN202261023U Direct current (DC)-direct current (DC) converter
05/30/2012CN202261022U Control circuit for single-inductor dual-output DC-DC (direct current-to-direct current) switching power supply
05/30/2012CN202261021U Direct current voltage booster circuit consisting of 555 time-base circuit
05/30/2012CN202261020U Direct current (DC)-DC switching power circuit for single-phase charge control smart electricity meter
05/30/2012CN202261019U Voltage-multiplying auxiliary power supply circuit
05/30/2012CN202261018U Stepless voltage regulating module
05/30/2012CN202261017U Switch power supply special for relay protection
05/30/2012CN202261016U Digital large-power high-frequency inversion direct-current power supply controller
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