Patents for H02M 1 - Details of apparatus for conversion (33,954)
11/1997
11/26/1997CN1166077A Supply circuit of two-wire wide phase angle light and speed regulating controller
11/25/1997US5691890 Power supply with power factor correction circuit
11/25/1997US5691887 Self-timing power-up circuit
11/25/1997US5691577 Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier
11/19/1997EP0746899A4 Switching regulator having high current prevention features
11/18/1997US5689409 Switched-mode power supply
11/18/1997US5689176 Power factor/harmonics correction circuitry and method thereof
11/18/1997US5689155 Electronic stabilizer having a variable frequency soft start circuit
11/18/1997CA2110832C Inverter power supply for welding
11/12/1997EP0806833A1 Synchronisable power supply
11/12/1997EP0689689A4 Energy saving power control system
11/11/1997US5687070 Power factor control for switched mode rectifiers
11/11/1997US5687069 For starting a dc-driven device without current surges
11/11/1997US5687067 For supplying a switching signal to a semiconductor power switch
11/11/1997US5687066 Power converter with overvoltage protection
11/11/1997US5687065 Pre-regulator with light switch to limit voltage ringing on turn-off
11/11/1997US5687051 Feedback circuit for protecting an integrated circuit with a delay time
11/11/1997US5687049 Method and circuit for protecting power circuits against short circuit and over current faults
11/11/1997US5686806 Low-pass filter and electronic speed control system for electric motors
11/11/1997CA2106325C Gate power supply circuit
11/06/1997DE19714977A1 Device with inverter e.g. for machine tools, lifts, air-conditioning, pumps and printing presses
11/05/1997EP0805548A2 Power factor correction circuit
11/05/1997EP0805547A2 Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier
11/04/1997US5684689 Interchangeable plug power supply with automatically adjusting input voltage receiving mechanism
11/04/1997US5684688 Soft switching three-level inverter
11/04/1997US5684679 Switching mode power supply capable of reducing the response time thereof
11/04/1997US5684465 Method and means for supervision of valve units
11/04/1997US5684376 Solid state motor speed control
10/1997
10/30/1997WO1997040575A1 Low-cost, high-voltage, flyback power supply
10/29/1997EP0803086A1 Switching power supply with an auxiliary circuit to power a beat generator
10/29/1997CN1163681A Process and device for generating any desired M-phase Nth order distribution system in converter-fed device
10/29/1997CN1163505A Method for controlling power converter and power converting system
10/28/1997US5682306 Switched mode power supply with power factor correction
10/28/1997US5682086 Dynamic filter for an electronic ballast with a parallel-load resonant inverter
10/28/1997CA2098026C Control device for thyristor converter
10/28/1997CA2079068C Method and apparatus for testing self-commutative electric power conversion device
10/28/1997CA2072296C Switching cirucit protection apparatus and method
10/28/1997CA2057310C Switching power source
10/23/1997WO1997039519A1 Apparatus and method to prevent saturation of interphase transformers
10/23/1997WO1997039518A1 Electronic switched-mode power supply and its use
10/23/1997WO1997039517A1 Switch mode power supply
10/23/1997WO1997038873A1 High voltage power converter system
10/22/1997EP0802616A2 Synchronization of power converter arrays
10/22/1997EP0802615A2 Switching power source apparatus
10/22/1997EP0801851A1 Damped emi input filter for power factor correction circuits
10/22/1997EP0801839A1 Arrangements for reducing the electromagnetic field created by power electronic equipment
10/22/1997EP0801833A1 Transmission line power flow controller with unequal advancement and retardation of transmission angle
10/22/1997CN1163021A DC-DC converter circuit and inductive load driver using it
10/22/1997CN1162862A Switched-mode power supply having reduced harmonic load on the mains
10/21/1997US5680040 System for detecting incorrect phase rotation
10/16/1997DE19614627A1 Hochspannungs-Stromrichtersystem High-voltage power converter system
10/15/1997CN1162372A Method and device for controlling load power via phase adjustment system
10/08/1997CN1161588A Method and apparatus for protecting switching element of inverter from being overheated
10/07/1997US5675486 Electric power circuit having means for suppressing generation of harmonics flowing back to AC power source
10/07/1997US5675483 Power supply comprising means for improving the power factor
10/07/1997US5675482 Accident detection circuit of a voltage-type self-excited power converter
10/07/1997US5675476 Phase controlled bridge
10/07/1997US5675466 Assembly structure of self-turn-off switching device and snubber circuit therefor
10/07/1997US5675244 Power-supply apparatus for powering a control circuit for controlling a power switch component
10/01/1997EP0798857A2 Direct current regulator
10/01/1997EP0798846A2 Zero voltage switching, series resonant half bridge VHF inverter
10/01/1997EP0798838A1 Circuit for improving the power factor using a double discharge
10/01/1997EP0797865A1 Power rectifier circuit
10/01/1997EP0797864A1 Power rectifier circuit
10/01/1997CN1161114A Electric power converter
09/1997
09/30/1997US5673188 Zero voltage switching series resonant half bridge VHF inverter
09/30/1997US5673185 Circuit arrangement for generating a DC-separated output voltage
09/30/1997US5673184 Switch mode power supply circuit with increased power factor for mains
09/30/1997US5672988 High-speed switching regulator drive circuit
09/30/1997US5672941 Electronic power control apparatus
09/30/1997US5672940 Television power supply with polarity-independent charging paths
09/30/1997US5672917 Semiconductor power switch system
09/24/1997EP0797288A1 Switching power supply with reduced harmonic network load
09/24/1997EP0796517A1 Process and device for generating any desired m-phase nth order distribution system in a converter-fed device
09/24/1997CN1035972C Snubber
09/23/1997US5670865 Circuit to improve the transient response of step-down DC to DC converters
09/17/1997CN1035914C Method and apparatus for harmonic distortion correction
09/16/1997US5668708 DC power supply with reduced ripple
09/16/1997US5668707 Multi-phase power converter with harmonic neutralization
09/16/1997US5668493 Circuits and methods for increasing switch turn-off speed in high-speed switching regulator drive circuits
09/16/1997US5668464 Feedforward active filter for output ripple cancellation in switching power converters
09/12/1997WO1997033454A1 An electronic ballast for a compact fluorescent lamp
09/10/1997EP0794608A2 Trickle power supply
09/10/1997EP0794477A1 A voltage generation circuit
09/10/1997EP0793873A1 Method and device for reducing harmonics system perturbations in a self-commutated multilevel inverter
09/09/1997US5666463 In a microprocessor based closed loop velocity control system for a dc motor
09/09/1997US5666035 Direct current actuator control system using pulse-width modulation in four bipolar transistors connected in H-manner
09/09/1997CA2138673C Power factor correction circuit for ac to dc power supply
09/05/1997CA2195296A1 Trickle power supply
09/03/1997EP0793334A1 Dc-dc converter circuit and inductive load driver using it
09/02/1997US5663876 Circuit and method for achieving zero ripple current in the output of a converter
09/02/1997US5663634 Startup network for a flyback converter with linear regulation
09/02/1997US5663627 Control apparatus for controlling motor of air conditioner
08/1997
08/28/1997DE19621526C1 Welding unit with welding material control
08/27/1997EP0792008A2 Method and apparatus for protecting switching element of inverter from being overheated
08/27/1997EP0792007A2 Universal power module
08/27/1997EP0791239A1 Power supply apparatus with improved efficiency
08/26/1997US5661645 Power supply for light emitting diode array
08/26/1997US5661643 Universal power module
08/26/1997US5661394 Switching power supply