Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
05/2004
05/12/2004EP1418661A2 DC-DC Converter
05/12/2004EP1418660A1 A.C. Motor-inverter integrated drive unit
05/12/2004EP1417757A1 Systems and methods for pulse width modulation
05/12/2004EP1417745A2 Dc to dc converters
05/12/2004CN2615957Y DC-AC inverter
05/12/2004CN1496214A Transformer and transformer unit with said transformer
05/12/2004CN1496209A Inverter drive and liquid crystal display containing the same
05/12/2004CN1495991A 高压供电设备 High voltage power supply equipment
05/12/2004CN1495488A Liquid crystal display and driving light source device
05/12/2004CN1149732C Electronic ballasts with current and voltage feedback paths
05/12/2004CN1149725C Leakage current reduction circuit and power supply using the same circuit
05/11/2004US6735537 Procedure for measuring the current in each phase of a three-phase device via single current sensor
05/11/2004US6735099 Power supply unit for bipolar power supply
05/11/2004US6735098 Inrush current limiting circuit, power source device and power conversion device
05/11/2004US6734773 Transformer with integrated inductor
05/11/2004US6734641 Device for turning on light and illumination apparatus
05/11/2004US6734497 Insulated gate bipolar transistor, semiconductor device, method of manufacturing insulated-gate bipolar transistor, and method of manufacturing semiconductor device
05/11/2004CA2340123C Inverter for injecting sinusoidal currents into an alternating current network
05/11/2004CA2299219C Series compensator
05/06/2004WO2004039130A1 High-pressure discharge lamp operation device and illumination appliance having the same
05/06/2004WO2003001855A8 Electronic ballast
05/06/2004US20040085792 Inverter controller
05/06/2004US20040085791 Inverter controller
05/06/2004US20040085787 Load matched alternator system with fault protection
05/06/2004US20040085784 High-voltage power supply
05/06/2004US20040085783 Inverter controller
05/06/2004US20040085782 Method and apparatus for output voltage regulation in primary controlled switched mode power supplies
05/06/2004US20040085703 Multi-pulse HVDC system using auxiliary circuit
05/06/2004US20040085694 Universal multiple device power adapter and carry case
05/06/2004US20040085075 Overload current protection device using magnetic impedance element
05/06/2004US20040085046 Power conditioning system for turbine motor/generator
05/06/2004US20040085043 Universal multiple device power adapter and carry case
05/06/2004US20040084968 Sine wave generation circuit and uninterruptible power supply system using the same
05/06/2004EP1416621A2 Latching shutdown and delayed re-start of DC power supply in broadband network
05/06/2004EP1416604A2 Electric circuit for a driven generator with segmented stator
05/06/2004EP1415389A1 Neutral pole location independent earth leakage detection circuit
05/06/2004EP1415387A1 Method and apparatus for controlling synchronous rectifiers of a power converter
05/06/2004EP0888628B1 Transformer/reactor
05/05/2004CN1494205A Power regulating system used on turbine motor/turbogenerator
05/05/2004CN1148865C Constant ractive current compensation method for full-bridge phase-shifting resonance soft switch
05/05/2004CN1148864C Method and device for compensating ripple amplitude modulation
05/05/2004CN1148861C Inverter circuit
05/04/2004US6731524 Parallel connected DC regulators with power factor corrected rectifier inputs
05/04/2004US6731521 Switching power supply circuit
05/04/2004US6731099 DC-DC converter with control circuit capable of generating step-up and step-down signals
05/04/2004US6730894 Resonant frequency tracking system and method for use in a radio frequency (RF) power supply
04/2004
04/29/2004WO2004036755A2 Space vector pwm modulator for permanent magnet motor drive
04/29/2004WO2004015851A3 Low voltage, two-level, six-pulse induction motor controller driving a medium-to-high voltage, three-or-more-level ac drive inverter bridge
04/29/2004WO2004008618A3 Active rectifier module for three-phase generators of vehicles
04/29/2004WO2003009690A3 Oscillating circuit, converter with such oscillating circuit, and preconditioner with such converter
04/29/2004US20040080967 Method and device for controlling an electric load connected to a multiphase switchable DC/AC frequency convertor
04/29/2004US20040080966 Damping system
04/29/2004US20040080227 Electrical generating system having a magnetic coupling
04/29/2004DE10257203A1 Lastansteuerungsschaltung unter Verwendung einer Freilaufdiode Load driving circuit using a free-wheeling diode
04/28/2004EP1414145A1 Motor drive control apparatus
04/28/2004EP1413041A1 Electronic control systems and methods
04/28/2004EP1413040A2 Power supply system
04/28/2004EP1364446A4 Self-oscillating circuit for driving high-side and low-side switching devices with variable width pulses
04/28/2004EP1316139B1 Active power factor correction
04/28/2004CN1492576A Method and device for controlling inductive motor regenerated energy flow and DC bus voltage in frequency modulation driving system
04/28/2004CN1147988C Alternating-current controlling method and device
04/27/2004US6728120 Rectifier apparatus for high voltages
04/27/2004US6728119 Method and apparatus for converting a DC voltage to an AC voltage
04/27/2004US6728116 Magnetic circuit using switching
04/27/2004US6727674 Device for producing or controlling an alternating current in at least one inductive load
04/27/2004US6727599 Generator system for a motor vehicle as well as a method for controlling an inverter of an asynchronous generator
04/27/2004CA2377112C Control circuit of power converter
04/22/2004WO2004034559A1 A converter and a method for controlling a converter
04/22/2004WO2004019477A3 Input filter for a.c. motor phase current sensing
04/22/2004US20040076028 Method for regulating an inverter system
04/22/2004US20040075424 Waveform control system
04/22/2004US20040075414 Driving apparatus and method of three phase induction motor
04/22/2004US20040074255 Air conditioner
04/22/2004DE202004002305U1 Schaltung zur Leistungsfaktorkorrektur für Schaltnetzteile, Ladegeräte u.dgl. Circuit for power factor correction for switching power supplies, chargers, etc..
04/22/2004DE20121788U1 Semiconductor component for control of power semiconductor switch in power inverter, has monolithically integrated circuit, for short-circuit monitoring of power semiconductor switch, and for error detection/storage
04/22/2004DE10084799T5 Universelle eigensichere Schaltstromversorgung Universal intrinsically safe switching power supply
04/21/2004EP1411754A1 Electronic ballast circuit
04/21/2004EP1411628A1 Driving apparatus and method of three phase induction motor
04/21/2004EP1411624A1 Power inverter
04/21/2004EP1411623A1 Input inrush current control and/or output short-circuit control to a boost converter in a power supply
04/21/2004EP1411205A2 Power conversion unit and method of providing power to a window covering
04/21/2004EP1410867A2 Power supply for short-circuiting arc welding and automatic welding machine utilizing the same
04/21/2004EP1410490A1 Control system for a power converter and method of controlling operation of a power converter
04/21/2004EP1410487A1 Power conversion system and method of power conversion
04/21/2004EP1410486A2 Power factor correction circuit with a coil
04/21/2004EP1275194A4 Magnetic circuit using switching
04/21/2004EP1078378A4 Power regulator
04/21/2004EP0937330B1 A resonant power converter for energising a coil
04/21/2004CN2613095Y Plug type light-controlled electronic transformer
04/21/2004CN1491474A Power system having generator driven by engine
04/21/2004CN1491471A Overload current protection device using magnetic impedance element
04/21/2004CN1490929A Driver of three-phase inductive motor and method thereof
04/21/2004CN1490925A Pulsewidth modulation controlling method for multilevel DC-to-AC converter
04/21/2004CN1490917A Power supplier on bicycle
04/20/2004US6724644 AC/DC converter
04/20/2004US6724599 Power semiconductor device
04/20/2004US6724596 Hysteretic current control method and an uninterruptible power supply using same
04/20/2004US6724313 Fault detection system
04/20/2004US6724255 Class E/F switching power amplifiers
04/20/2004US6724199 Pin and cup devices for measuring film thickness