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)
07/2012
07/04/2012CN102545618A Full-bridge phase-shifting soft switching circuit
07/04/2012CN102545617A DC-DC power source for LLC (double-inductance-capacitance) resonance vehicle with resonance frequency controlled by single chip microcomputer
07/04/2012CN102545616A Logical link control (LLC) resonance type vehicle direct current-direct-current (DC-DC) power supply capable of changing resonant frequency
07/04/2012CN102545615A Power supply system and image forming apparatus
07/04/2012CN102545614A Resonant type power supply conversion circuit
07/04/2012CN102545613A Automotive DC-DC conversion power source controlled by single chip microcomputer
07/04/2012CN102545612A Direct current booster with time base circuit
07/04/2012CN102545611A Inductor current measurement system and method for DC to DC converters
07/04/2012CN102545610A Digital method and system for sliding mode variable structure control of DC-DC switch converter
07/04/2012CN102545609A High-power supply based on multi-phase PWM controller
07/04/2012CN102545608A Constant current source driving circuit and semiconductor cooler control system
07/04/2012CN102545607A Voltage adjustment system
07/04/2012CN102545606A Switching mode power supply control
07/04/2012CN102545605A Converter device
07/04/2012CN102545604A Synthetic ripple regulator with frequency control
07/04/2012CN102545603A Switching power-supply unit
07/04/2012CN102545602A Load power loop for MPPT (maximum power point tracking) solar charging controller based on PSoC (programmable system on chip)
07/04/2012CN102545601A Automotive DC-DC (direct current to direct current) conversion power supply with electronic switch instead of FWD (free-wheeling diode)
07/04/2012CN102545600A Power supply circuit capable of adaptively adjusting input and power supply method
07/04/2012CN102545599A Switch voltage-stabilized power supply and voltage stabilizing method thereof
07/04/2012CN102545598A Clock phase shifter for use with buck-boost converter
07/04/2012CN102545597A Switching regulator
07/04/2012CN102545596A Interleaved llc converter employing active balancing
07/04/2012CN102545595A Power switching circuit of PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking)-type solar charging controller
07/04/2012CN102545594A Bidirectional power source of small spherical Tokamak ohm magnet
07/04/2012CN102545593A Charge pump
07/04/2012CN102545592A Power management device and method
07/04/2012CN102545591A Circuits and methods for controlling a charge pump system
07/04/2012CN102545590A Charge pump device and method for regulating the same
07/04/2012CN102545589A Direct current voltage conversion circuit
07/04/2012CN102545588A Method for controlling a converter
07/04/2012CN102545587A Power supply circuit with shared functionality and method for operating the power supply circuit
07/04/2012CN102545586A Loop-powered field device
07/04/2012CN102545585A Method for controlling voltage set point of direct-current high-voltage/low-voltage converter
07/04/2012CN102545584A Controlling method of voltage setting point of direct-current high-voltage and low-voltage converter
07/04/2012CN102545580A In-system programming universal PFC multifunctional processor
07/04/2012CN102545575A Startup circuit, switching power source ic, and switching power source apparatus
07/04/2012CN102545573A Enabling control method and output voltage control method of direct current-direct current converter (DC-DC converter)
07/04/2012CN102545571A Current sensing circuit applied in switched power supplier
07/04/2012CN102545570A Llc converter active snubber circuit and method of operation thereof
07/04/2012CN102545561A Cross complementing PWM driving waveform generating method and circuit
07/04/2012CN102545560A Power switch driver, IC chip, and DC-DC converter
07/04/2012CN102545346A Thermoelectric-conversion-based charging power supply management circuit
07/04/2012CN102545339A Wide voltage input intelligent photovoltaic charging control system with maximum power point tracking (MPPT) function
07/04/2012CN102543360A High power inductance coil of vehicle DC-DC (direct current to direct current) switching power supply
07/04/2012CN102541232A Buck conversion circuit
07/04/2012CN102529367A Apparatus for driving electrostatic capacitance-type actuator
07/04/2012CN102013820B AC-DC converter, method and controller
07/04/2012CN101849431B Power supply circuit
07/04/2012CN101847936B Soft switching full-bridge direct-current converter with lag leg connected with auxiliary network in parallel
07/04/2012CN101841239B Boost DC/DC converter and logic control circuit thereof
07/04/2012CN101834539B High-efficiency AC/DC combined converter with wide output voltage range
07/04/2012CN101834524B Special self-control power switch for router
07/04/2012CN101814763B Small conversion device for use in wind power generation
07/04/2012CN101789694B Power governor and control method thereof
07/04/2012CN101753059B Wireless transmission module applying solar charge and daylight measurement technology
07/04/2012CN101753028B Multi-output power conversion circuit
07/04/2012CN101753019B Negative voltage supply circuit and method for supplying negative voltage
07/04/2012CN101689597B Piezoelectric transformer
07/04/2012CN101674014B Topology structure of stepping-up/stepping-down chopper circuit
07/04/2012CN101656480B PWM control method for three-level LLC converter
07/04/2012CN101651419B Switch power supply circuit
07/04/2012CN101651412B Method of converting single power to dual power, voltage follower, virtual ground and pseudo ground generator, and DC regulated power
07/04/2012CN101572984B Image ratio constant flow source circuit driving multipath light emitting diode
07/04/2012CN101567549B Direct-current safety gate
07/04/2012CN101563837B Circuit arrangement for reduced switch load
07/04/2012CN101556330B Power supply for portable radiographic detector
07/04/2012CN101542879B Multi-output power supply device
07/04/2012CN101542878B Load driving circuit and method of setting load current thereof
07/04/2012CN101529717B Voltage-boosting stage
07/04/2012CN101436821B PWM/PDM double-mode modulation selective circuit and double-mode modulation method
07/04/2012CN101431293B Digital controlled power supply
07/04/2012CN101395791B Supply circuit and device comprising a supply circuit
07/04/2012CN101395789B Electrical power source system and method for the same
07/04/2012CN101378228B Power-supply switching control device and power-supply circuit
07/04/2012CN101350565B Circuit device for implementing triode base current compesation and control method thereof
07/04/2012CN101341801B Discharge lamp lighting device and image display device
07/04/2012CN101277061B Synchronous rectifier control for synchronous boost converter
07/04/2012CN101202504B Dc-dc convertor
07/04/2012CN101197538B Microminiature power converter
07/04/2012CN101031986B Apparatus and method for multi-phase transformers
07/03/2012US8213197 Switching capacitor power supply
07/03/2012US8213194 Control device for a flyback converter
07/03/2012US8213193 Flyback DC-DC converter with feedback control
07/03/2012US8213192 Primary side sensing for isolated fly-back converters
07/03/2012US8213191 Constant-current circuit capable of voltage compensation and zero-voltage switching
07/03/2012US8213190 Single-stage isolated high power factor AC/DC converter with leakage inductor energy recovery function
07/03/2012US8213189 Resonance-type power supply with improved convertion efficiency
07/03/2012US8213188 Bidirectional DC-DC converter
07/03/2012US8213187 Method and apparatus for high-side input winding regulation
07/03/2012US8212493 Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter
07/03/2012US8212420 Variable capacitance circuit
06/2012
06/28/2012WO2012088505A1 Reducing voltage stress in a flyback converter design
06/28/2012WO2012088447A1 Electrical circuit for controlling electrical power to drive an inductive load
06/28/2012WO2012088198A1 Low-to-medium power single chip digital controlled dc-dc regulator for point-of-load applications
06/28/2012WO2012087532A1 Charge pump systems with reduction in inefficiencies due to charge sharing between capacitances
06/28/2012WO2012087518A2 Charge pump system that dynamically selects number of active stages
06/28/2012WO2012086975A2 Direct current/ direct current converter for reducing switching loss, wireless power receiver including direct current/ direct current converter
06/28/2012WO2012085599A1 Charge pump circuit
06/28/2012WO2012085461A1 Photovoltaic equipment and method for outputting, from solar radiation, dc current and/or voltage that is optimal and constant over time
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