Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
12/2004
12/29/2004CN1558542A Resistance, capacitance and diode resetting positive excitation converter with double diodes
12/29/2004CN1558541A Modular power supply system
12/29/2004CN1558540A Exchange type power supply and oscillator frequency adjuster thereof
12/29/2004CN1182647C Soft switching full bridge circuit converter
12/29/2004CN1182599C Piezoelectric transformer inverter
12/29/2004CN1181945C Power supply used in the welding, cutting and heating device
12/28/2004US6836416 Multi-output power conversion circuit
12/28/2004US6836413 Current-powered converted with energy recovery clamping circuit
12/28/2004US6836393 Resonance type power supply unit
12/28/2004US6836054 Thickness mode piezoelectric transducer with resonant drive circuit
12/23/2004WO2004112231A2 Rectifier/power converter for an ac power source having a connection for a back-up power source
12/23/2004WO2004112225A2 High efficiency off-line linear power supply
12/23/2004US20040259436 Voltage converter with selectable output voltage levels
12/23/2004US20040257844 Power converter module with a voltage regulating circuit
12/23/2004US20040257841 Device for removing inverter noise
12/23/2004US20040257834 High output power quasi-square wave inverter circuit
12/23/2004US20040257004 Electronic ballast with ignition and operation control
12/23/2004US20040256998 High-efficiency power supply apparatus used with a display panel driving system and method thereof
12/23/2004US20040256916 Switching assembly
12/23/2004US20040256915 Power supply apparatus and method based on parasitic power extraction
12/23/2004DE10323220A1 Short circuit switch for an error affected part inverter has intermediate capacitor energy store with an electronic semiconductor element in parallel
12/22/2004EP1489733A2 Rectifier circuit for transponder
12/22/2004EP0954898A4 Current-sensing mosfets in paralleled mosfet power circuit
12/22/2004CN2666032Y AC-DC two-way operational power supply automatic switching circuit
12/22/2004CN1556582A Non contact rotatable electric energy transfer device
12/21/2004US6833691 System and method for providing digital pulse width modulation
12/21/2004US6833529 Power supply for short-circuiting arc welding, and automatic welding machine utilizing the same
12/16/2004WO2004110123A1 Electronic component for the switching of electrical power
12/16/2004WO2004109919A1 Digital differential amplification control device
12/16/2004WO2004109901A1 Pwm control system
12/16/2004WO2004109892A2 Controller for permanent magnet alternator
12/16/2004WO2004109890A1 Generator system
12/16/2004WO2004108996A2 Electrophoretic dipping system
12/16/2004WO2004088813A3 Power source adapter for battery-operated devices
12/16/2004US20040252534 Voltage converting method and voltage converting apparatus using large electrolytic condenser
12/16/2004US20040252533 Power supply and method for generating switching signal for turning on/off switching element of converter unit constituting power supply
12/16/2004US20040252532 Power supply apparatus
12/16/2004US20040252531 Multilevel inverter control schemes
12/16/2004US20040252527 Voltage converter
12/16/2004US20040252432 Protection circuit for power management semiconductor devices and power converter having the protection circuit
12/16/2004US20040252422 Selective potting for controlled failure and electronic devices employing the same
12/16/2004US20040251928 Device for detecting a motor drive current
12/16/2004US20040251884 High efficiency off-line linear power supply
12/16/2004US20040251778 Actuator using piezoelectric element, and driving circuit for the same
12/16/2004DE10322888A1 Intergrierter Schaltkreis mit Transponder Integrated circuit with transponder
12/16/2004DE102004022136A1 Soft-switch power converter e.g. with soft-switch boost circuit, includes rectifier coupled to storage inductor and active snubber to transfer energy to output terminal
12/16/2004CA2528414A1 Electrophoretic dipping system
12/16/2004CA2528145A1 Controller for permanent magnet alternator
12/15/2004EP1487094A1 A converter and a method for control thereof
12/15/2004EP1487093A1 Pwm inverter device
12/15/2004EP1485983A1 Apparatus and method for filtering voltage for an electrostatic precipitator
12/15/2004EP1010234A4 High power inverter pole employing series connected devices configured for reduced stray loop inductance
12/15/2004CN1555128A Control method and device for series resonant converter
12/15/2004CN1555127A Magnetic amplifier auxiliary output circuit of isolation switch power source
12/15/2004CN1555126A Passive soft switch method suitable for multiple tube converter
12/15/2004CN1180526C Pulsewidth modulation power transformer
12/14/2004US6831442 Utilizing zero-sequence switchings for reversible converters
12/14/2004US6831426 Electronic device, or dimmer, for regulating the power supply applied to a load
12/14/2004US6831378 Semiconductor integrated circuit device and contactless electronic device
12/14/2004CA2393506C Device and method of controlling a gate of a three-level inverter
12/14/2004CA2368598C Switching power supply circuit
12/14/2004CA2354454C Pulse width modulation control circuit for a high frequency series resonant ac/dc converter
12/14/2004CA2213426C Circuit arrangement for operating electrical incandescent bulbs
12/14/2004CA2152625C Closed loop pulse width modulator inverter with volt-seconds feedback control
12/09/2004WO2004107553A1 Inverter power source control circuit for high-frequency heater
12/09/2004WO2004107552A1 High-frequency heater inverter power source control circuit
12/09/2004WO2004107551A1 Inverter device
12/09/2004WO2004107550A1 Temperature monitoring of parallel-connected inverter modules
12/09/2004WO2004107549A1 Homopolar electro-mechanical rotary power converter
12/09/2004WO2004064204A8 Multiple outlet dc power module
12/09/2004WO2004012238A3 Power transfer system with reduced component ratings
12/09/2004WO2004010238A3 Single chip ballast control with power factor correction
12/09/2004WO2003100953A3 Dc offset compensator
12/09/2004US20040246756 Arcp converter and a method for control thereof
12/09/2004US20040246755 Power supply apparatus for arc-utilizing apparatus
12/09/2004US20040246747 Method and apparatus for output voltage regulation in primary controlled switched mode power supplies
12/09/2004US20040246746 Method for controlling a converter
12/09/2004US20040246662 Power module package for high frequency switching system
12/09/2004US20040246641 Inverter control unit for motor driving and air-conditioner employing the same
12/09/2004US20040246089 Dc to dc converters
12/09/2004US20040245973 Digital power converting method and device with zero voltage
12/09/2004US20040245968 Voltage converter
12/09/2004US20040245967 Maximum power follow-up control apparatus
12/09/2004US20040245344 Integrated circuit for a transponder
12/09/2004DE202004015975U1 Rectifier circuit for suppressing the propagation of electrical interference, e.g. for use in backlit LC display, has isolation unit for separating driver and control units so that they are isolated on either side of a transformer
12/09/2004DE102004022646A1 Umrichtersystem für einen Fahrzeugmotor Converter system for a vehicle engine
12/09/2004CA2527560A1 Inverter power source control for high-frequency heater
12/09/2004CA2527559A1 Inverter power source control for high frequency heater
12/08/2004EP1484664A2 Architecture for switching power source to load in a battery powered system
12/08/2004EP1483823A2 Power-supply unit for electronic oven
12/08/2004CN1553573A Two-directional loading driving circuit without zero crossover current wave
12/08/2004CN1553563A Switch capacitance current voltage converter with microminiature DC current measure
12/08/2004CN1553562A Three-phase pure sinusoidal wave inverse power supply system with digital control
12/08/2004CN1553561A Power supplier with medium voltage direct current
12/08/2004CN1553560A Integrated information household electrical appliances power supplier
12/08/2004CN1553557A Power factor correcting circuit and method with frequency control
12/08/2004CN1179477C Piezo inverter
12/08/2004CN1179472C DC power-supply circuit for inductance
12/07/2004US6829152 Load drive circuit using flywheel diode
12/07/2004US6828753 Input filter for A.C. motor phase current sensing