Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
04/2009
04/01/2009CN101401287A Bidirectional step-up/step-down DC/DC converter apparatus
04/01/2009CN101399530A Circuit and method for frequency interference according to load
04/01/2009CN101399500A Resonance semi-bridge power source controller
04/01/2009CN101399499A Power source module with wide input voltage range
04/01/2009CN101399498A DC conversion power source device and method for improving DC conversion power source device
04/01/2009CN101399497A Electric power circuit
04/01/2009CN101399496A Converter circuit with pulse width frequency modulation, method and controller thereof
04/01/2009CN101399495A Switching mode power supplies with digital electromagnetic interference control
04/01/2009CN101399493A AC-DC rectifying device
04/01/2009CN101399492A Control circuit having protection circuit for power supply apparatus
04/01/2009CN101398674A Electric power circuit and control method thereof
04/01/2009CN100474778C PWM controller with integrated PLL
04/01/2009CN100474755C Resonance converter with voltage control and method for driving variable loads
04/01/2009CN100474753C 电源电路及电子装置 The power supply circuit and electronic device
04/01/2009CN100474752C Semiconductor device for controlling switch power supply
04/01/2009CN100474751C Switch power converter and system for controlling a plurality of switch power converters
04/01/2009CN100474750C Power supply method and electric source equipment capable of fast responding input and output voltage change
04/01/2009CN100474749C DC/DC transducer synchronous rectification clamping position driving circuit
04/01/2009CN100474748C Switched mode power supply, and control circuit and method for controlling the same
04/01/2009CN100474366C Display device
04/01/2009CN100474209C Step-up/step-down switch stabilizer control circuit and step-up/step-down switch stabilizer
03/2009
03/31/2009US7512821 Power supply system and method for supplying power to CPU providing power saving mode
03/31/2009US7512422 RF generator with commutation inductor
03/31/2009US7511978 System and method for providing switching to power regulators
03/31/2009US7511977 Charge-pump type switching power supply apparatus
03/31/2009US7511974 High voltage charging circuit
03/31/2009US7511973 Constant current mode ripple attenuation method in flyback power supply
03/31/2009US7511972 DC-DC converter recycling leakage inductor losses via auxiliary DC regulator
03/31/2009US7511971 Constant voltage circuit for power adapter
03/31/2009US7511562 High voltage generating circuit preserving charge pumping efficiency
03/31/2009US7511472 Power measuring apparatus
03/27/2009CA2639771A1 Converter circuit and method for operating such a converter circuit
03/27/2009CA2638485A1 Constant current driver circuit with voltage compensated current sense mirror
03/26/2009WO2009039082A2 Stacked synchronous buck converter
03/26/2009WO2009037613A1 Control of a half bridge resonant converter for avoiding capacitive mode
03/26/2009US20090082410 Constitutively translocating cell line
03/26/2009US20090080223 Forward converter with self-driven synchronous rectifiers
03/26/2009US20090080222 System and Method for Power Saving Conversion Topology in Switch Mode Power Supplies
03/26/2009US20090079524 Multi-band tunable resonant circuit
03/26/2009US20090079272 Integrated Half-Bridge Power Circuit
03/26/2009DE102007042084A1 Transducer circuit for supply of multiple output voltages from constant voltage source, has clocked primary coil powered by constant voltage source and secondary coil arrangement for induction of secondary current
03/25/2009EP2040378A1 Semiconductor integrated circuit device
03/25/2009EP2040365A2 Forward converter with self-driven synchronous rectifiers
03/25/2009EP2040364A2 Load drive circuit
03/25/2009EP2040363A1 Power supply system and vehicle having the same
03/25/2009EP2040362A1 Power supply apparatus
03/25/2009EP2040361A1 Power supply device
03/25/2009EP2038991A2 High voltage power supply
03/25/2009EP2038990A1 Charge pump dc-dc converter comprising solid state batteries
03/25/2009EP2038719A2 Voltage up-conversion circuit using low voltage transistors
03/25/2009EP1913596A4 Voltage down converter for high speed memory
03/25/2009EP1815582B1 Pre-conditioner with low voltage components
03/25/2009CN201213241Y Three-level DC converting circuit for zero-voltage switch
03/25/2009CN201213240Y Standard power source output circuit
03/25/2009CN201213239Y Multi-state voltage output device for highly integrated image forming system
03/25/2009CN101395791A Supply circuit and device comprising a supply circuit
03/25/2009CN101395790A Improved window comparator with accurate levels for use in DC-DC converters
03/25/2009CN101395789A Electrical power source system and method for the same
03/25/2009CN101394133A Apparatus for preventing capacitor charger from overcharging and method thereof
03/25/2009CN101394132A Pulse width modulating control circuit applied to capacitor charging
03/25/2009CN101394131A Switching regulator control circuit, switching regulator and switching regulator control method
03/25/2009CN101394130A Power supply control apparatus
03/25/2009CN101394129A Switching control circuit and self-excited DC-DC converter
03/25/2009CN101394128A Varactor-based charge pump
03/25/2009CN101394127A Voltage adjustment module design system and method
03/25/2009CN101394094A Full automatic high efficient voltage step-up step-down circuit
03/25/2009CN100472956C Voltage generation circuit
03/25/2009CN100472928C Switch-over type power change-over circuit
03/25/2009CN100472927C Power converter having improved control
03/25/2009CN100472926C Resonant switching power supply device
03/25/2009CN100472925C Control circuit with frequency regulation to reduce power supply converter electro-magnetic interference
03/25/2009CN100472924C Boost structure for switch capacitor system
03/25/2009CN100472923C Apparatus and method for sliding-mode control in a multiphase switching power supply
03/25/2009CN100472922C Start-up circuit for providing a start-up voltage to an application circuit
03/25/2009CN100472909C Overheat protection device
03/25/2009CN100472384C Power circuit
03/25/2009CN100472383C Circuit for controlling TEC thermal electric refrigerator
03/24/2009US7508689 Inverter and a drive system using the inverter
03/24/2009US7508685 Stabilized power supply
03/24/2009US7508362 Electronic circuit, method of driving the same, electro-optical device, and electronic apparatus
03/24/2009US7508252 Semiconductor integrated circuit device
03/19/2009WO2009035013A1 Constant current supply type of switching regulator
03/19/2009WO2009034810A1 Constant current output control type switching regulator
03/19/2009WO2009034223A1 Dc/dc bridge
03/19/2009WO2009034180A1 A power converter
03/19/2009WO2009033264A1 An apparatus and a method of producing a boosted voltage using a plurality of charge pump circuits
03/19/2009WO2008157478A3 Configurable input high power dc-dc converter
03/19/2009US20090073732 Controller and associated method
03/19/2009US20090073727 Adjusting for conductor loss to regulate constant output voltage in a primary feedback converter
03/19/2009US20090073726 Current Waveform Construction to Generate AC Power With Low Harmonic Distortion From Localized Energy Sources
03/19/2009US20090073725 Apparatus and method for regulating constant output voltage and current on primary side in a flyback converter
03/19/2009US20090072889 Charge Pump
03/19/2009DE102007043603A1 Multiphasen-Gleichspannungswandler Multi-phase DC-DC converter
03/19/2009DE102005005771B4 Verfahren zur Ermittlung einer Lichtbogenspannung Method for determining an arc voltage
03/19/2009CA2697397A1 An apparatus and a method of producing a boosted voltage using a plurality of charge pump circuits
03/18/2009EP2036193A2 Method for operating a resonant power converter
03/18/2009EP1683253B1 Forward converter
03/18/2009EP1658669A4 Apparatus for noise current reduction in power converters
03/18/2009CN201210649Y Phase shifting full-bridge soft on-off circuit
03/18/2009CN201210648Y Pulse frequency modulated switched mode power source