| Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189) |
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| 06/09/1993 | EP0545454A2 Voltage regulator |
| 06/09/1993 | EP0544728A1 Generator for amplitude-coupled voltages. |
| 06/09/1993 | EP0484341A4 A power supply |
| 06/09/1993 | CN2135873Y Automatic electronic rectifier for projecting film |
| 06/09/1993 | CN1021190C Apparatus for conversion |
| 06/08/1993 | US5218523 Driver circuit for an inverter device with output voltage stabilization during start-up period |
| 06/08/1993 | US5218522 D.C. chopper regulating method and apparatus incorporating bilateral regulating voltage path |
| 06/02/1993 | EP0544047A1 High current MOS transistor integrated bridge structure optimising conduction power losses |
| 06/02/1993 | CN2135210Y Conversion power supply |
| 06/01/1993 | US5216587 Inverter |
| 06/01/1993 | US5216586 Power supply start-up circuit |
| 06/01/1993 | US5216349 Driving circuit for a switching element including an improved power supply arrangement |
| 05/28/1993 | CA2083123A1 High quality electrical power distribution system |
| 05/27/1993 | WO1993010595A1 Current control circuit for converter |
| 05/27/1993 | DE4237120A1 Current rectifier arrangement for generating d.c voltage for d.c. machine - contains two input and output ports, controlled switches and rectifier element |
| 05/27/1993 | DE4233573A1 Self-regulated current rectifier with quasi=resonant d.c. voltage intermediate circuit - contains resonant circuit choke between constant voltage source and power switches forming triggering resonant circuit with capacitor |
| 05/27/1993 | DE4135869C1 Overcurrent and short-circuit protection for multiphase inverter - ignites extinction thyristor, which excites resonant circuit formed from capacitor and inductor such that current quickly blocks power semiconductor switch |
| 05/26/1993 | EP0543747A2 Half bridge converter with current mode controller |
| 05/26/1993 | EP0543204A2 Electric power converter arrangement |
| 05/26/1993 | EP0543084A1 Motor control unit with thermal structure |
| 05/26/1993 | EP0543005A1 High power factor, voltage-doubler rectifier |
| 05/26/1993 | EP0406277B1 Automatically guided push-pull inverter |
| 05/25/1993 | US5214575 Ground fault detector for an inverter and a method therefor |
| 05/25/1993 | US5214371 Voltage regulator for variable speed permanent magnet alternators |
| 05/25/1993 | US5214356 Dimmable fluorescent lamp ballast |
| 05/25/1993 | US5214355 Instant-start electronic ballast |
| 05/23/1993 | CA2083011A1 Low harmonic compact fluorescent lamp ballast |
| 05/19/1993 | EP0542507A2 Power conversion system |
| 05/19/1993 | CN1072295A Power inverting method and system |
| 05/19/1993 | CN1020836C Circuit and method for discharging dc filter capacitors |
| 05/18/1993 | US5212630 Parallel inverter system |
| 05/18/1993 | US5212629 Voltage and harmonic control of a multi-pole inverter |
| 05/13/1993 | WO1993009593A1 Amplifying tubes heated by transformed a.c. |
| 05/13/1993 | DE4237131A1 Thin film windshield heater for aircraft |
| 05/13/1993 | DE4136879A1 Ueber einen transformator mit wechselstrom heizbare roehre Over a transformer with ac heated roehre |
| 05/13/1993 | DE4136514A1 Inverter drive circuit for variable speed centrifuge - uses IGBT transistors controlled by gate drive pulse followed immediately by gate discharge pulse |
| 05/12/1993 | EP0541253A2 Current mode hysteresis controller for pulse width modulated inverter |
| 05/12/1993 | CN2133096Y Adaptive apparatus for solar immerseable pump |
| 05/11/1993 | US5209075 Current controlling apparatus and method for air conditioning apparatus |
| 05/11/1993 | CA1317635C A.c. power supply apparatus |
| 05/06/1993 | DE4236067A1 HF induction heater for different size containers - uses load detection for container suspended by induction heating coil for controlling voltage supply of latter |
| 05/06/1993 | DE4136736A1 Self controlled AC inverter circuit - has thyristor bridge with coupled diode bridge and central circuit providing controlled turn off |
| 05/06/1993 | DE4136731A1 Drive circuitry for mains supplied AC converter - operates turn off capacitor via GTO thyristor with coupled inductance and diode |
| 05/06/1993 | DE4136730A1 Voltage limiting circuit for AC inverters - has turn off capacitor coupled to resistor to discharge through thyristor providing limiting voltage condition |
| 05/06/1993 | DE4135680A1 Inverter motor drive limiting rate of change of output currents - using inductive stages coupled between inverter outputs and motor units |
| 05/05/1993 | WO1993009586A1 Reduction of disturbances in a power network |
| 05/05/1993 | WO1993009585A1 Reduction of disturbances in a power network |
| 05/05/1993 | CN2132338Y Single phase rectifier |
| 05/05/1993 | CN1020536C Fluorescent light functional extender apparatus |
| 05/04/1993 | US5207737 Analog output electro-pneumatic transducer |
| 04/29/1993 | WO1993008636A1 Power supply |
| 04/28/1993 | EP0539041A1 High voltage power supply |
| 04/28/1993 | EP0538851A2 Power converter |
| 04/28/1993 | EP0538825A2 Power converting apparatus |
| 04/28/1993 | EP0538614A2 Switching branch with free-wheel diode apparatus |
| 04/28/1993 | EP0314808B1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same |
| 04/28/1993 | CN2131249Y High-voltage static power apparatus |
| 04/28/1993 | CN2131248Y Adjustable multi-output ac-dc converter |
| 04/28/1993 | CN2131247Y Power inverter with duplex rectification circuit |
| 04/27/1993 | US5206802 Blanking interval voltage deviation compensator for inverters and converters |
| 04/27/1993 | US5206801 Ac/dc converter fault detector |
| 04/27/1993 | US5206564 Circuit for controlling light output of a discharge lamp |
| 04/21/1993 | EP0538103A1 Improved power supply device for ozonizer |
| 04/21/1993 | EP0538102A1 Power supply device for ozonizer |
| 04/20/1993 | US5204594 Circuit for providing a signal proportional to the average current flowing through coils of a motor operated in both linear and PWM modes |
| 04/20/1993 | US5204504 High-frequency heating apparatus including ringing effect suppressor for switching element |
| 04/14/1993 | EP0415923B1 High efficiency converter |
| 04/13/1993 | US5202820 Saturable inductor protection circuit for inductive load driver |
| 04/13/1993 | US5202819 Capacitor input type rectifier having a circuit for preventing inrush current |
| 04/13/1993 | US5202578 Module-type semiconductor device of high power capacity |
| 04/08/1993 | DE4133029A1 Control circuit for switching transistors - uses oscillation or resonance circuit for switching transistor energising |
| 04/07/1993 | EP0535916A2 Inductor current-sensing circuitry |
| 04/07/1993 | EP0535911A1 Operating circuit arrangement for a discharge lamp |
| 04/07/1993 | EP0535423A1 Electric power steering apparatus |
| 04/07/1993 | EP0535095A1 Resonant inverter. |
| 04/07/1993 | CN1070776A Blanking interval voltage devication compensator for inverters and converters |
| 04/06/1993 | US5200886 Start-up for a switched-mode power supply |
| 04/01/1993 | WO1993006651A1 Ac/dc converter fault detector |
| 03/31/1993 | EP0534727A1 Electronic ballast arrangement for a compact fluorescent lamp |
| 03/31/1993 | EP0534362A2 Method and apparatus for testing self-commutative electric power conversion device |
| 03/31/1993 | EP0534285A1 Filter circuit |
| 03/31/1993 | EP0534242A1 Method to reduce voltage oscillations of a neutral point connection of a three-level inverter |
| 03/31/1993 | EP0534153A1 Charging generator for vehicle |
| 03/31/1993 | EP0534068A2 Equipment used in plasma- and surface-treatment-technique |
| 03/31/1993 | EP0533978A1 Method and device for driving a pulse inverter |
| 03/31/1993 | EP0533899A1 High voltage dc source |
| 03/31/1993 | CN1070520A Dynamic frequency-changing and current transforming method and apparatus thereof |
| 03/31/1993 | CN1070518A Device for protecting power supply circuit |
| 03/31/1993 | CN1070382A Controlling apparatus for elevator |
| 03/30/1993 | US5198971 Separation control for multiphase plural inverter system |
| 03/30/1993 | US5198743 Battery charger with microprocessor control |
| 03/27/1993 | CA2076127A1 Electronic ballast arrangement for a compact fluorescent lamp |
| 03/24/1993 | EP0533439A2 Constant-voltage diode, power converter using the same and process of producing constant-voltage diode |
| 03/24/1993 | EP0533403A2 Blanking interval voltage deviation compensator for inverters and converters |
| 03/24/1993 | EP0533158A2 Power conversion device and semiconductor module suitable for use in the device |
| 03/24/1993 | EP0532832A1 A power supply unit for discharge lamps |
| 03/24/1993 | CN1070291A Pulse-width-modulation method for providing extended linearity, reduced commutation losses and increase in inverter/converter output voltage |
| 03/23/1993 | US5196995 3-terminal bidirectional switching power supply with AC or DC input and AC or DC output |
| 03/23/1993 | CA1314931C Methods of and apparatus for converting radio frequency energy to direct current |
| 03/19/1993 | CA2067320A1 Power supply unit for discharge lamps |