| 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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| 06/23/1994 | CA2151271A1 A converter circuit |
| 06/22/1994 | EP0603155A1 Electric soldering device |
| 06/22/1994 | EP0602908A1 High power factor circuit for powering a load |
| 06/21/1994 | US5323330 Reduction of disturbances in a power network |
| 06/16/1994 | DE4342082A1 Control circuit and level shifting circuit, esp. for power transistor - has control voltage monitor, and generates recovery signal when defined time period has elapsed after generation of voltage drop signal |
| 06/16/1994 | DE4303147C1 GTO thyristor current regulator - with resonance circuit and active clamping using gate-turn-off clamping thyristor |
| 06/16/1994 | DE4242146A1 Driving a series-resonance circuit type inverter from a rectifier - involves using an inverter with four thyristors and diodes in antiparallel with series resonant circuit and thyristor controller |
| 06/15/1994 | EP0601833A2 Improvement to capacitive coupled power supplies |
| 06/15/1994 | EP0601593A2 Power supply device with current multiplication |
| 06/15/1994 | EP0601091A1 Resonance mode converter with a series-parallel resonance |
| 06/15/1994 | CN2169244Y Inverted resourse of vehicle accumulator |
| 06/15/1994 | CA2103425A1 High power factor circuit for powering a load |
| 06/14/1994 | US5321600 Delta connected three phase AC-DC converter with power factor correction circuits |
| 06/14/1994 | US5321599 Control apparatus for suppressing a third harmonic neutral point voltage in a three level inverter |
| 06/14/1994 | US5321596 DC/DC/AC power supply for a subscriber interphase unit |
| 06/14/1994 | US5321343 Digital motor control system |
| 06/09/1994 | WO1994013058A1 Wide load matching capability power supply |
| 06/09/1994 | CA2110371A1 Capacitive coupled power supplies |
| 06/08/1994 | EP0600635A2 Parallel-connection multiple inverter system and control method therefor |
| 06/08/1994 | EP0600522A2 Voltage converter with high-frequency link |
| 06/08/1994 | EP0600384A2 Power supply |
| 06/08/1994 | EP0600312A2 Method of controlling parallel-connected inverters on the basis of current maximal values |
| 06/08/1994 | EP0600179A2 Power semiconductor circuit arrangement |
| 06/08/1994 | EP0599831A1 Process and device for adjusting mean values of a correcting variable derived from a switched input variable according to a continuous set correcting variable. |
| 06/08/1994 | EP0494137B1 Process and device for the optimum operation of a pulse converter connected to a power supply |
| 06/08/1994 | EP0491691B1 Process and device for determining parameters governing resonance in a power-converter power supply |
| 06/08/1994 | EP0491690B1 Process for control of a multi-stage pulse converter |
| 06/08/1994 | CN1087762A AC-to-DC converter |
| 06/07/1994 | US5319536 Power system for parallel operation of AC/DC convertrs |
| 06/07/1994 | US5319295 Digital current regulator |
| 06/04/1994 | CA2110072A1 Method for the parallel connection of inverters by reference to extreme current values |
| 06/01/1994 | EP0599700A2 Filter module for frequency converter |
| 06/01/1994 | EP0599608A2 Method and apparatus for driving motor |
| 06/01/1994 | EP0599593A2 Full wave rectifier using current mirror bridge |
| 06/01/1994 | EP0598835A1 Circuit and method for testing inverter drive logic switching patterns |
| 06/01/1994 | DE4310785C1 Ensuring symmetry of partial voltages of two voltage divider capacitors - involves supplying voltage deviation between the two voltages to two comparators with hysteresis effects |
| 06/01/1994 | CN2167475Y Frequency-changing starting type dc-to-ac converting power source |
| 06/01/1994 | CN2167473Y Device for three-branch type network double voltage control |
| 05/31/1994 | US5317498 Electrical power generation system |
| 05/31/1994 | US5317497 Internally excited, controlled transformer saturation, inverter circuitry |
| 05/28/1994 | CA2110076A1 Frequency converter filtering module |
| 05/26/1994 | WO1994011799A1 Switching regulator and amplifier system |
| 05/26/1994 | WO1994011747A1 Auto-self test of ac motor system |
| 05/26/1994 | DE4238913A1 Oscillation control in low voltage lighting circuit - initiating oscillation by pulse derived from time base, monitored according to criteria and also stoppable |
| 05/26/1994 | CA2123095A1 Auto self test of ac motor system |
| 05/25/1994 | EP0598563A2 Semiconductor conversion device |
| 05/25/1994 | EP0598197A2 Blocking oscillator switched power supply with sinusoidal current consumption |
| 05/25/1994 | EP0598110A1 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown |
| 05/25/1994 | CN2165930Y High-pressure electrostatic generator of electrostatic stem-separating machine for tea |
| 05/25/1994 | CN1087220A Inverter device |
| 05/24/1994 | US5315498 Apparatus providing leading leg current sensing for control of full bridge power supply |
| 05/24/1994 | US5315215 High-voltage switching circuit |
| 05/24/1994 | US5315214 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown |
| 05/19/1994 | DE4238199A1 Stabilised heating voltage supply arrangement for mains-fed magnetrons - has switching frequency varied to compensate for voltage variation dependent on magnetron anode current. |
| 05/19/1994 | DE4238198A1 Magnetron switch-mode power supply circuit, e.g. for microwave oven - controls rectifier so that only one magnetron is driven by mains power at any time |
| 05/19/1994 | DE4237394A1 Mains power unit esp. for cordless telecommunication equipment - supplies battery-recharging DC from bridge rectifier via pre-regulating series thyristor circuit and output voltage stabiliser |
| 05/18/1994 | EP0597426A2 AC-to-DC converter |
| 05/18/1994 | EP0597144A1 Hybrid power electronic device |
| 05/18/1994 | EP0597132A1 Power converter |
| 05/18/1994 | EP0597039A1 Plural inverter control arrangement |
| 05/18/1994 | EP0596879A1 Process and arrangement for recognizing defects in power converters. |
| 05/18/1994 | CN1024619C Control device of neutral point clamped power inverter apparatus |
| 05/18/1994 | CN1024618C Parallel operation controller for pulse-width modulation inversing device |
| 05/18/1994 | CN1024617C Procedure for control of frequency converter and rectifier/inverter bridges and modulator unit |
| 05/18/1994 | CN1024616C Procedure for selection of bridge or bridge section in rectifier bridge unit and bridge selector unit |
| 05/17/1994 | US5313384 High voltage generating circuits including a transformerless voltage multiplier |
| 05/17/1994 | US5313363 Low impedance interconnection assembly for high frequency switching power semiconductor devices and low inductance modular capacitor |
| 05/17/1994 | US5313150 Drive control apparatus for an air conditioner having a modular inverter and a control circuit mounted on a common substrate |
| 05/17/1994 | US5313143 Master-slave half-bridge DC-to-AC switchmode power converter |
| 05/17/1994 | US5313142 Compact fluorescent lamp with improved power factor |
| 05/11/1994 | CN1086639A Inverter protection device |
| 05/10/1994 | US5311419 Polyphase AC/DC converter |
| 05/10/1994 | US5311418 HVDC DC to DC converter with commutating transformer |
| 05/10/1994 | US5311102 Power supply unit for discharge lamps |
| 05/10/1994 | CA2011563C Power conversion system |
| 05/05/1994 | DE4337501A1 Controlling three=phase currents of inverter applied at induction motor - converting to two=phase current in arithmetical manner and obtaining peak value of two=phase currents in first step |
| 05/04/1994 | EP0595560A1 Speed control arrangement for electric motors |
| 05/04/1994 | EP0595415A2 Electronic ballast for a discharge lamp |
| 05/04/1994 | EP0595319A2 PWM inverter control system and method |
| 05/04/1994 | EP0595232A2 Controlling apparatus for high frequency high voltage power source |
| 05/04/1994 | EP0595091A2 Active three phase power conditioner |
| 05/04/1994 | EP0594908A1 Multiple-voltage control circuit of battery or multiple independent DC power |
| 05/04/1994 | CN1024441C Method and apparatus for optimization of thyristor power supply transport time delay |
| 05/03/1994 | US5309350 Push-pull inverter |
| 05/03/1994 | US5309349 Current detection method for DC to three-phase converters using a single DC sensor |
| 05/03/1994 | US5309346 Transmission line fault current dynamic inverter control |
| 05/03/1994 | US5309345 For an alternating current power unit |
| 05/03/1994 | US5309079 Digital three-phase PWM signal |
| 05/03/1994 | US5309078 Synchronous rectification method for reducing power dissipation in motor drivers in PWM mode |
| 04/28/1994 | WO1994009559A1 Unipolar series resonant converter |
| 04/28/1994 | WO1994009555A1 Converter circuit arrangement |
| 04/28/1994 | DE4335708A1 HV generation for energising X=ray tube - using multi-state inverter whose switching state is changed only during current zero crossing in oscillation circuit |
| 04/28/1994 | CA2145197A1 Unipolar series resonant converter |
| 04/27/1994 | EP0593738A1 Programmed pwm inverter controller |
| 04/27/1994 | EP0593737A1 Dual snubber circuit |
| 04/27/1994 | EP0593686A1 Method of regulating a quasi-resonant voltage inverter. |
| 04/27/1994 | EP0593637A1 Low impedance bus for power electronics |
| 04/27/1994 | EP0593472A1 Process and device for operating as on-board charging set the inverse rectifier of the threephase current drive of an electric car. |
| 04/26/1994 | US5307407 20 Hz ring generator using high frequency PWM control |
| 04/26/1994 | US5307259 Process for compensating a phase and amplitude response between a multiphase setpoint and actual value and circuit for implementing the process |