Patents for H02M 1 - Details of apparatus for conversion (33,954)
03/2004
03/31/2004CN1144348C Grid circuit
03/31/2004CN1144344C Step-up transformer
03/30/2004US6714429 Active inrush current control for AC to DC converters
03/30/2004US6713890 Power generation apparatus and its control method
03/25/2004WO2004025816A2 Low harmonic rectifier circuit
03/25/2004WO2001057996A9 Start-up circuit for voltage regulators
03/25/2004DE19710319B4 Schaltung zum Sperren einer Halbleiterschaltvorrichtung bei Überstrom Circuit for blocking a semiconductor switching device for overcurrent
03/25/2004DE10242332A1 Electronic voltage adapter for gas discharge lamp(s) with charge pump for active power factor correction has element for electrically isolated lamp current coupling to supply energy to pump capacitor
03/25/2004DE10242239A1 Domestic device, e.g. washing machine, dishwasher, heating system or similar, has coupling point for powerline signals provided at suppression filter immediately on mains side of suppression capacitor
03/24/2004EP1401090A1 Polarity inversion circuit for pulsating DC power supply
03/24/2004CN1484884A Communication radar system
03/24/2004CN1484365A Power source converter structure with rotary connector
03/24/2004CN1484355A High-efficient UPS
03/24/2004CN1143426C 电源装置 Power supply unit
03/23/2004US6711039 Method and apparatus for controlling synchronous rectifiers of a power converter
03/23/2004US6711038 Method for controlling bi-directional switches in matrix converters
03/23/2004US6710994 Low power gate trigger circuit for controlling a silicon-controlled rectifier circuit
03/23/2004US6710580 Method and apparatus for overload-controlling inverter power generation apparatus
03/23/2004US6710552 Circuit arrangement for operating discharge lamps
03/18/2004WO2003061102A3 Power supply filtering
03/18/2004WO2002095913A3 Power systems power circuits and components for power systems
03/18/2004US20040052100 Synchronous rectifier
03/18/2004US20040052096 Pulse width modulation controller and method
03/18/2004US20040052093 Power supply and power supply control device for an electronic equipment having a key off function
03/18/2004US20040051579 Signal generator for charge pump in an integrated circuit
03/18/2004US20040051568 Transistor output circuit, semiconductor device including transistor output circuit, and switching electric power unit having transistor output circuit
03/18/2004US20040051513 Switching regulator with dynamic current limiting and drive circuit for the switching regulator
03/18/2004US20040051398 Device for rapid short-circuit protection in a power semiconductor
03/18/2004US20040051386 High voltage supply device
03/18/2004US20040051385 Energy control circuit and method of SMPS (switching mode power supply) for PDP (plasma display panel)
03/18/2004US20040051383 Switching mode current limiting power controller circuit
03/18/2004DE4229303B4 Gleichrichter Rectifier
03/18/2004DE10334832A1 Steuerkreis zum Ansteuern eines Leistungshalbleiterbauelements Control circuit for driving a power semiconductor device
03/18/2004DE10242326A1 Electronic ballast with power factor compensation/correction (PFC) for discharge lamps and method for reducing harmonics during operation of such ballast, with specified capacitor (dis)charging
03/18/2004DE10241304A1 Betriebsschaltung mit verbesserter Leistungsversorgung einer Treiberschaltung Operating circuit with improved power supply of a driver circuit
03/18/2004DE10241249A1 Filter arrangement to suppress current over oscillations has a capacitor on high inductance winding side of a transformer in resonance with the mains frequency
03/17/2004EP1397856A1 A high voltage converter system
03/17/2004CN1482730A Integrated circuit driver with stable bootstrap power supply
03/17/2004CN1482729A Thermoelectric cooling conversion power supply
03/17/2004CN1142623C Power conversion apparatus
03/16/2004US6707650 Self-synchronized synchronous rectifier
03/16/2004US6707285 Phase-controlled AC-DC power converter
03/16/2004US6707284 Programmable power supply
03/16/2004US6707264 Sequential burst mode activation circuit
03/16/2004US6707260 Circuit arrangement including DC-AC converter having a dependable start circuit
03/11/2004US20040048112 Arrangement and method for generating electric power, and power source
03/11/2004US20040047166 Power supply controller for exercise equipment drive motor
03/11/2004US20040047164 Isolated drive circuitry used in switch-mode power converters
03/11/2004US20040047092 Active ground current reduction device
03/11/2004US20040047091 High-side short-circuit protection for a voltage converter
03/11/2004US20040046634 Low harmonic rectifier circuit
03/11/2004US20040046633 Low harmonic rectifier circuit
03/11/2004US20040046629 Low harmonic rectifier circuit
03/11/2004US20040046516 Load control device
03/10/2004EP1396937A2 Circuit for operating a driving circuit with improved power supply
03/10/2004CN1141766C Power supply specially for household cinema
03/09/2004US6704213 Voltage converter system having a plurality of voltage inverters for increasing a DC voltage
03/09/2004US6704182 Method for protection of a matrix converter against overvoltages, and an active overvoltage device
03/09/2004US6703874 Gate driver for MOS control semiconductor devices
03/09/2004US6703818 AC to AC power converter for electronic devices having substantially different output voltage/current characteristics
03/09/2004US6703793 Switching power unit
03/04/2004WO2004019483A2 Providing dc isolation in switching amplifiers
03/04/2004WO2004019475A1 Output choke arrangement for inverter, and method in conjunction therewith
03/04/2004WO2003041189A3 Method and device for supplying electric power to an appliance
03/04/2004WO2003017452A3 Fault tolerant power supply circuit
03/04/2004WO2003005547A3 Odd harmonics reduction of phase angle controlled loads
03/04/2004US20040041621 Operating circuit with an improved power supply for a driver circuit
03/04/2004US20040041619 Mosgate driver integrated circuit with adaptive dead time
03/04/2004US20040041549 Circuit arrangement for operating an electrical machine
03/04/2004DE10328781A1 Current converter has protection circuit connecting semiconducting element gate, source with low impedance from starting converter to first switch-on and with high impedance after switch-on starts
03/04/2004CA2438725A1 Operating circuit with an improved power supply for a driver circuit
03/03/2004EP1394927A2 Power supply with surge protection
03/03/2004CN1479909A Voltage regulator circuit for chip card IC
03/03/2004CN1479439A Inserting position driving circuit
03/02/2004US6701103 Power supply control apparatus and image formation apparatus
03/02/2004US6700808 Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converter
03/02/2004US6700435 Local supply generator for a digital CMOS integrated circuit having an analog signal processing circuitry
03/02/2004US6700359 Method for simultaneous output ramp up of multiple regulators
03/02/2004US6700214 Mobile power generation system
03/02/2004CA2353422C High frequency dc to ac inverter
03/02/2004CA2140065C Solid state motor speed control
02/2004
02/26/2004WO2004017507A1 Overheat protection device
02/26/2004WO2004017151A1 Pulse power supply for regenerating magnetic energy
02/26/2004WO2003043168A3 Distributed architecture control system for static power inverters
02/26/2004WO2002037908A3 Active ground current reduction device
02/26/2004US20040037102 Dual input AC/DC to programmable DC output converter
02/26/2004US20040037099 Control circuit of MOSFET for synchronous rectification
02/26/2004US20040037096 Apparatus and method for filtering voltage for an electrostatic precipitator
02/26/2004US20040036533 Providing DC isolation in switching amplifiers
02/26/2004US20040036450 Method for detecting the null current condition in a PWM driven inductor and a relative driving circuit
02/26/2004DE10333819A1 Gateansteuerungsschaltung in Leistungsmodulen Gate drive circuit in power modules
02/26/2004DE10317374A1 Steuerschaltung für Leistungsvorrichtung Control circuit for power device
02/25/2004EP1082805B1 Voltage switch-over device
02/25/2004CN2604823Y PWM detection circuit
02/25/2004CN1477777A Utitiztion of frequency converter to make high-power A.C. power supply
02/25/2004CN1477771A Grid drive circuit of power assembly
02/25/2004CN1477770A Active power filter method with D.C. source and branch impedance decoupling control and its system
02/25/2004CN1140047C Switching power circuit
02/25/2004CN1140043C Gate driving control unit for large-power thuristor with gate capable of being shut off
02/24/2004US6697955 Method and apparatus for using an energy reserve to provide voltage to a power factor correction circuit in the event of a power interuption