| 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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| 02/06/1991 | EP0410966A1 Solid state electronic ballast. |
| 01/31/1991 | DE3924258A1 Monitoring circuitry checking performance of pulsed power rectifier - gives comprehensive evaluation of functional faults using comparator with PLL referencing |
| 01/30/1991 | EP0410574A2 Adjustable AC power supply equipment for air-conditioner system |
| 01/29/1991 | US4989128 Pulse width modulation control unit of inverter |
| 01/29/1991 | US4989127 Driver for high voltage half-bridge circuits |
| 01/29/1991 | US4988958 Amplitude-controlled trapezoidal wave generating circuit |
| 01/24/1991 | DE4003849C1 Digital control circuitry for three=phase thyristor bridge - has comparator supplied by shift register and delivering trigger pulses upon imbalance of following trigger pulse distributor |
| 01/23/1991 | EP0409328A2 A switched bridge circuit |
| 01/23/1991 | EP0187867B1 Method of and apparatus for controlling a synchronous motor |
| 01/23/1991 | CN1048773A Permanent-magnet brush-free dc generator with electronic voltage stabilizer |
| 01/23/1991 | CN1011373B Arangement for high frequency link power conversion |
| 01/17/1991 | DE4022033A1 Inverter circuit with inverse-parallel compact AC bridges - divides losses equally between two bridge networks with particular sequence of firing of respective controlled semiconductor |
| 01/16/1991 | EP0407660A1 Induction heating apparatus |
| 01/12/1991 | WO1991001063A1 Device with a multiplicity of independent, identical oscillators operating synchronously |
| 01/12/1991 | WO1991001061A1 Process and device for taking over the regulation of several regulating parameters of a power converter |
| 01/12/1991 | CA2063596A1 Process and device for taking over the regulation of several regulating parameters of a power converter |
| 01/12/1991 | CA2035887A1 Device with a multiplicity of independent, identical oscillators operating synchronously |
| 01/10/1991 | DE3920263A1 Electro-motor current supply - has circuit with resistance network to give rectified AC to apply dynamic limit to motor current |
| 01/09/1991 | CN1048469A Constant frequency and constant voltage power generation system without exciting power supply |
| 01/09/1991 | CN1048468A Large-power nc voltage-regulating converter |
| 01/09/1991 | CN1011174B Control apparatus of converter |
| 01/09/1991 | CN1011173B Gated separable power adapter |
| 01/08/1991 | US4984147 Control method for PWM converter |
| 01/08/1991 | US4984146 Suppression of radiated EMI for power supplies |
| 01/08/1991 | US4983887 Controlled series-resonance-loaded ballast |
| 01/02/1991 | EP0404907A1 Three phase inverter power supply with balancing transformer |
| 01/01/1991 | US4982318 DC power supply having bipolar outputs |
| 01/01/1991 | US4982316 Polyphase full-wave rectifying circuit |
| 01/01/1991 | US4982145 Method and apparatus for the optimization of thyristor power supply transport time delay |
| 12/27/1990 | EP0403616A1 Dc content control for an inverter |
| 12/27/1990 | EP0403595A1 Switched electrical power conversion and balancing |
| 12/25/1990 | US4980812 Uninterrupted power supply system having improved power factor correction circuit |
| 12/25/1990 | US4980576 Inductance and capacitance charge pump circuit for driving power MOS transistor bridges |
| 12/25/1990 | US4980574 Solar irrigation D.C. to A.C. power system supplying A.C. voltage at a precise power frequency |
| 12/20/1990 | WO1990016104A1 A system for discharging electrical power from a high-voltage direct current line |
| 12/19/1990 | EP0402395A1 Voltage converter |
| 12/18/1990 | US4979089 Method for balancing currents to switching devices |
| 12/18/1990 | US4979087 Inductive coupler |
| 12/18/1990 | CA1278039C Voltage converter |
| 12/13/1990 | WO1990015472A1 Process for compensating a phase and amplitude cycle between a multi-phase actual and set value and circuit for implementing the process |
| 12/12/1990 | EP0401448A1 Stabilized power supply with very high efficiency through switching series regulation |
| 12/12/1990 | CN1047772A Pwm conversion current apparatus |
| 12/12/1990 | CN1047771A Multifuction self-excitation power motivation device |
| 12/12/1990 | CN1047770A Pwm conversion apparatus |
| 12/11/1990 | US4977492 Controller for an inverter |
| 12/11/1990 | US4977334 Crest factor correction circuit |
| 12/11/1990 | CA1277704C Cross coupled current regulator |
| 12/05/1990 | EP0401057A2 Variable-speed driving system |
| 12/05/1990 | EP0400271A2 Multi-stage insulating transformer type high voltage generating apparatus |
| 12/04/1990 | US4975825 Stacked power converter |
| 12/04/1990 | US4975824 Power converter circuit board |
| 12/04/1990 | US4975822 Harmonic reduction for multi-bridge converters |
| 12/04/1990 | US4975819 Cuk type direct/direct voltage converter and mains supply with direct conversion achieved with a converter such as this |
| 12/04/1990 | CA1277369C Procedure and device to operate an hvdc transmission short coupling in the event of power system faults |
| 11/28/1990 | EP0399598A2 A.C. to D.C. converter |
| 11/28/1990 | EP0399313A2 Inverter circuit utilizing the reserve voltage capabilities of symmetrical gate turn off thyristors |
| 11/28/1990 | CN1010640B Controller of electric power converter |
| 11/27/1990 | CA1276991C Ac input free power source |
| 11/27/1990 | CA1276978C Pwm inverter |
| 11/27/1990 | CA1276974C Welding transformer and rectifier assembly |
| 11/22/1990 | EP0398722A2 Uninterruptable power supply apparatus and isolating method thereof |
| 11/22/1990 | EP0398176A2 Harmonic reduction for multi bridge converters |
| 11/21/1990 | CN1047177A Method for controlling pw inverter |
| 11/20/1990 | US4972309 N-phase sinewave converter |
| 11/15/1990 | WO1990013939A1 Power conversion system |
| 11/15/1990 | DE4014114A1 X=ray generator for diagnostic use - has thyristor controlled bridge rectifier to provide high intermediate voltage |
| 11/15/1990 | DE3915510A1 Low loss inverter circuit with energy feedback capability - has thyristor switching, voltage and current limitation by wattless components and transformer feedback to source |
| 11/14/1990 | EP0397241A1 Driver for high voltage half-bridge circuits |
| 11/14/1990 | EP0396631A1 Arrangement for controlled energy transfer for electrical supply, especially for reducing switching transients |
| 11/13/1990 | CA1276225C Ozonator power supply |
| 11/10/1990 | CA2015317A1 Frequency-independent single-phase to three-phase ac power conversion |
| 11/07/1990 | CN2065377U Ac power supply converter with safety lock for automobile |
| 11/07/1990 | CN1010362B Pwm controller |
| 11/07/1990 | CN1010360B Control apparatus for ac-dc converter |
| 11/06/1990 | US4969081 Inverter switch current sensor with shoot-through current limiting |
| 11/06/1990 | US4969080 A method of decoupling a three-phase converter |
| 11/06/1990 | US4969079 Corrective device for inverter output voltage error |
| 11/06/1990 | US4969076 Load compensating gain control for a series resonant inverter |
| 10/31/1990 | EP0185773B1 Control board for ac motors |
| 10/31/1990 | DE4013171A1 DC voltage component removal for multiphase inverter output - converts DC to AC voltage with 1-N phases using detectors between output lines of first phase of 2-N phases |
| 10/30/1990 | US4967336 Partitioning a motor control circuit |
| 10/30/1990 | US4967333 Stabilized power supply with reduced ripple factor |
| 10/30/1990 | CA1275691C Snubber arrangements with energy recovery for power converters using self-extinguishing devices |
| 10/25/1990 | DE4000056A1 Modular assembly for high voltage transistor frequency changer - provides physical separation of power output, control module and pulse unit in minimum space |
| 10/25/1990 | DE3912706A1 Method of reducing noise in pulse-controlled machine - using mean values of wide range of frequencies from pulse generator for processing by pulse width modulator to match control parameters |
| 10/24/1990 | EP0389515A4 Integratable synchronous rectifier |
| 10/24/1990 | CN1046419A Control arrangement for inverter current |
| 10/23/1990 | US4965710 Insulated gate bipolar transistor power module |
| 10/23/1990 | US4965709 Switching converter with pseudo-resonant DC link |
| 10/23/1990 | US4965504 Control apparatus for inverter for driving AC motor |
| 10/23/1990 | CA1275441C Current and voltage limited inverter |
| 10/23/1990 | CA1275440C Rfi suppression technique for switching circuits |
| 10/18/1990 | WO1990012352A1 Fault-powered power supply |
| 10/17/1990 | CA2009581A1 Current controlled full wave transistor bridge inverter for a multiple phase ac machine |
| 10/10/1990 | EP0391617A1 Method and network for enhancing power factor of off-line switching circuit |
| 10/10/1990 | EP0390786A1 Power supply start circuit |
| 10/10/1990 | CN1046071A Power converter with current-type inverter |
| 10/10/1990 | CN1009981B Current source power converting apparatus with overvoltage protection |
| 10/10/1990 | CN1009980B Static transducer containing filter against high-frequency interference |
| 10/04/1990 | DE3910118A1 Converter and transformer |