Patents for H02M 1 - Details of apparatus for conversion (33,954)
09/1994
09/20/1994US5349157 Inverter power supply for welding
09/15/1994WO1994021029A1 Converter circuit
09/14/1994CN1092218A Automatic control device for point voltage in half-bridge power amplification power supply
09/14/1994CN1092217A Three-phase full-controlled trigger bridge circuit for thyristors
09/13/1994US5347441 Thyristor converter system with higher harmonics suppression
09/13/1994US5347166 Apparatus and method for switching high power levels
09/13/1994CA2007023C Inverter circuit and a method for controlling same
09/08/1994DE4405138A1 Control device for the voltage behaviour in the consumer circuit of a current consumer
09/08/1994DE4308424C1 Switching controller, in particular for operation on loads having a capacitive component
09/06/1994US5345377 Harmonic controller for an active power line conditioner
09/06/1994US5345375 System and method for reducing harmonic currents by current injection
09/06/1994US5345374 Power source for supplying DC voltage by converting AC voltage from AC source
09/06/1994US5345164 Power factor corrected DC power supply
09/01/1994WO1994019919A1 High power factor gas lamp energizing circuit
09/01/1994WO1994019860A1 Low line harmonic ac to dc power supply
09/01/1994DE4305768A1 Power supply unit
08/1994
08/30/1994US5343378 Power circuit
08/23/1994US5341283 Protective circuit with feedback capability for two-point and three-point inverters, and method of feeding back the protective-circuit energy
08/23/1994US5341281 Harmonic compensator using low leakage reactance transformer
08/23/1994US5341279 Switching power supply circuit providing reduced power loss upon termination of operation of a starting power supply circuit
08/23/1994US5341068 Electronic ballast arrangement for a compact fluorescent lamp
08/18/1994WO1994018687A1 Apparatus and method for switching high power levels
08/18/1994WO1994018683A1 System for reducing harmonics by harmonic current injection
08/16/1994US5338994 Method and apparatus for achieving current balance in parallel connected switching devices
08/10/1994EP0610058A2 Device for suppressing voltage fluctuation and higher harmonics
08/10/1994CN1090705A Circuit arrangement
08/04/1994DE4403008A1 Inverter with overvoltage protection
08/02/1994US5335162 Primary side controller for regulated power converters
08/02/1994CA2027155C Apparatus for triggering a plurality of thyristor devices
07/1994
07/28/1994DE4301810A1 Single-phase thyristor control circuit for aluminium@ wire resistance evaporator via transformer
07/27/1994EP0608016A1 Driving circuit for bipolar transistors and ballast inverter provided with such circuit
07/21/1994WO1994016492A1 Power supply
07/21/1994DE4301203A1 Controlling revolution speed of washing machine drive
07/21/1994CA2132002A1 Power supply
07/20/1994EP0606665A1 Circuit arrangement
07/20/1994EP0606664A1 Ballast circuit
07/20/1994EP0606601A2 Control device
07/20/1994CN2172544Y Inverting power supply unit
07/20/1994CA2113495A1 Driving circuit for bipolar transistors and ballast inverter provided with such circuit
07/19/1994US5331537 Method of controlling electric valves of a converter
07/19/1994US5331534 Power supply apparatus
07/19/1994US5331533 Zero voltage switching power converters
07/13/1994EP0605879A1 Inverter power supply for welding
07/13/1994EP0605780A2 A low input harmonic induced multiple use AC synchronous generator starter converter
07/06/1994EP0605330A2 Structure of a static frequency converter
07/06/1994EP0605328A1 Optimal power supply for electric motor
07/06/1994EP0605057A2 Switched-mode supply circuit and control circuit for use in such a power supply circuit
07/05/1994US5327335 Harmonic feedback control for an inverter
07/05/1994US5327333 Push push DC-DC reduced/zero voltage switching converter with off-set tapped secondary winding
06/1994
06/23/1994WO1994014228A1 Method for notch modulating a rectifier for three phase operation
06/23/1994DE4243191A1 Sinusoidal current collection circuit for polyphase mains rectifier
06/22/1994EP0602978A1 Circuit for shortening the turn-off time of a power transistor
06/22/1994EP0602908A1 High power factor circuit for powering a load
06/22/1994EP0602892A2 Semiconductor valve
06/22/1994EP0602835A1 Voltage control circuits
06/21/1994US5323304 A.C. storage module for reducing harmonic distortion in an A.C. waveform
06/21/1994US5323062 System for triac trigger control in combination with a sensing element
06/15/1994EP0601833A2 Improvement to capacitive coupled power supplies
06/15/1994CA2103425A1 High power factor circuit for powering a load
06/14/1994US5321299 Hybrid integrated circuit device
06/09/1994CA2110371A1 Capacitive coupled power supplies
06/08/1994EP0600340A1 Passive circuit for improving the power factor
06/08/1994EP0494137B1 Process and device for the optimum operation of a pulse converter connected to a power supply
06/08/1994EP0491691B1 Process and device for determining parameters governing resonance in a power-converter power supply
06/08/1994EP0491690B1 Process for control of a multi-stage pulse converter
06/08/1994CN1087762A AC-to-DC converter
06/08/1994CN1024979C Supply circuit
06/07/1994US5319301 Inductorless controlled transition and other light dimmers
06/01/1994EP0599554A2 Push push DC- DC converter with off-set tapped secondary winding
06/01/1994EP0599427A1 Static energy regulator for lighting networks with control of the quantity of the intensity and/or voltage, harmonic content and reactive energy supplied to the load
06/01/1994EP0599405A1 Low harmonic power supply for a discharge lamp
06/01/1994EP0599000A1 Power supply
06/01/1994CN2167472Y Universal power supply inputting type adapter
06/01/1994CN1087453A Method and apparatus for harmonic distortion correction
05/1994
05/27/1994CA2109753A1 Circuit arrangement
05/26/1994DE4301605C1 Monitoring switch=on and switch=off of power semiconductor component - forming count signal from level changes at gate and output electrode and comparing with predefined value to signal fault on difference
05/25/1994EP0598465A2 Method and apparatus for harmonic distortion correction
05/25/1994EP0598197A2 Blocking oscillator switched power supply with sinusoidal current consumption
05/25/1994EP0598110A1 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown
05/25/1994CN1087220A Inverter device
05/24/1994US5315214 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown
05/18/1994EP0597426A2 AC-to-DC converter
05/18/1994CN1024619C Control device of neutral point clamped power inverter apparatus
05/17/1994US5313142 Compact fluorescent lamp with improved power factor
05/11/1994WO1994010745A1 Harmonic controller for an active power line conditioner
05/11/1994WO1994010744A1 Active power line conditioner with synchronous transformation control
05/11/1994WO1994010743A1 Load current fundamental filter with one cycle response
05/11/1994EP0596397A1 High frequency power supply
05/11/1994CA2147257A1 Active power line conditioner with synchronous transformation control
05/11/1994CA2146987A1 Load current fundamental filter with one cycle response
05/11/1994CA2146761A1 Harmonic controller for an active power line conditioner
05/10/1994US5311419 Polyphase AC/DC converter
05/05/1994DE4241174A1 Synchronised switching-off process for several GTO thyristors - detecting switch=off time point in dependence on specified gate-cathode voltage
05/05/1994CA2109235A1 Filtered, high-frequency power supply circuit, particularly for combination with a fluorescent lamp, especially a compact fluorescent lamp
05/03/1994US5309347 H-bridge circuit with protection against crossover conduction
05/03/1994US5309344 Dual active clamp, zero voltage switching power converter
05/03/1994US5309343 Driver circuit having paralleled transistors and current-variable resistive elements
04/1994
04/28/1994WO1994009557A1 Arrangement with a d.c.-d.c. converter for switching operation
04/28/1994WO1994009556A1 Process for operating a voltage converter, voltage converter and its use
04/28/1994WO1994009554A1 A boost-converter with low losses