| 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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| 05/17/1991 | CA2030170A1 Luminous power supply |
| 05/17/1991 | CA2025364A1 Electrical power conversion circuit |
| 05/16/1991 | WO1991007007A1 An auxiliary excitation circuit for phased transformers |
| 05/16/1991 | WO1991007006A1 High voltage power supply |
| 05/15/1991 | EP0427527A2 Offset correction circuit of PWM inverter |
| 05/15/1991 | EP0427143A2 Semiconductor power module |
| 05/15/1991 | CN1051471A Multibridge controllable rectifying circuit |
| 05/15/1991 | CN1051470A Transformerless voltage transforming, rectifying and regulating circuit |
| 05/14/1991 | US5016158 Parallel multi-inverter system and motor drive system using the same |
| 05/14/1991 | US5016135 Power supply incorporating circuit breaker and fault detection circuit |
| 05/14/1991 | CA1284175C Forward converters used in switching power supplies |
| 05/10/1991 | WO1991007808A1 An uninterrupted power supply system having improved power factor correction circuit |
| 05/10/1991 | CA2069896A1 Uninterrupted power supply system having improved power factor correction circuit |
| 05/08/1991 | EP0425875A2 Full wave rectifier/averaging circuit |
| 05/08/1991 | DE3936391A1 Integrated diode rectifier bridge - has switching transistors in two adjacent bridge arms controlled by multi-collector transistors in diagonally opposite arms |
| 05/08/1991 | CN2076726U Controlled rectifier without paralleling reactor |
| 05/07/1991 | US5014182 High frequency self-oscillating inverter with negligible switching losses |
| 05/07/1991 | US5014179 Power switch |
| 05/07/1991 | US5013985 Microcomputer with motor controller circuit |
| 05/02/1991 | DE4008927C1 Three=phase AC inverter circuit - has thyristor in parallel to intermediate capacitor short circuit current of which discharges over inductance |
| 05/02/1991 | DE3936338A1 Short-circuit protection of GTO thyristor pulse inverter - allows conduction through intermediate circuit fuse during first half-cycle only before blocking at zero current |
| 04/30/1991 | US5012400 DC/AC power converting apparatus including DC component remover |
| 04/30/1991 | US5012139 Full wave rectifier/averaging circuit |
| 04/24/1991 | EP0423226A1 Conversion circuit for limiting inrush current |
| 04/23/1991 | US5010471 Three-phase AC-to-AC series resonant power converter with reduced number of switches |
| 04/23/1991 | US5010469 Uninterruptible power supply with dual level voltage input |
| 04/23/1991 | US5010467 Control apparatus of DC power coupling system |
| 04/18/1991 | DE4023207C1 Driving branches of inverter - sing common DC source for parallel branches formed by semiconductor switches controlled in same direction and supplying load via choke |
| 04/18/1991 | DE3934281A1 AC inverter half bridge circuit - has input switching stages with capacitor and inductance stages |
| 04/16/1991 | US5008801 VSCF power conversion system using an output autotransformer |
| 04/16/1991 | US5008800 Multistage cascade rectifier |
| 04/16/1991 | US5008797 Power converter utilizing line replaceable units |
| 04/16/1991 | US5008599 Power factor correction circuit |
| 04/04/1991 | WO1991004605A1 Combinatorial circuit component |
| 04/04/1991 | DE3932510A1 Controlling in pulsed current converter or inverter - using microprocessor with stored pulse mode to calculate required pulse pattern for pulse pattern generator |
| 04/03/1991 | EP0419690A1 Method and device for supplying a three-phase network with neutral wires capable of carrying a current |
| 04/03/1991 | EP0183849B1 Control circuit that operates on pulse-width modulated signals |
| 04/02/1991 | US5005114 Circuitry for generating phase-shifted sinusoidal voltages |
| 04/02/1991 | US5005113 Hybrid circuit module having bridge circuit and rectifying circuit disposed on a same substrate |
| 03/27/1991 | EP0419230A2 Snubber circuit of power converter |
| 03/27/1991 | CN2074079U High-frequency switch-capacitor inverter |
| 03/27/1991 | CN1012244B Uninterruptible power source equipment |
| 03/26/1991 | US5003456 Circuit for providing fast output current control in a current mode switching power supply |
| 03/26/1991 | US5003455 Circuitry and method for controlling the firing of a thyristor |
| 03/26/1991 | US5003454 Power supply with improved power factor correction |
| 03/26/1991 | US5003453 Apparatus for a balanced three phase AC power supply in a computer having variable DC loads |
| 03/26/1991 | US5003452 High-voltage supply device for an x-ray tube |
| 03/21/1991 | WO1991003865A1 Process for control of a multi-stage pulse converter |
| 03/21/1991 | WO1991003864A1 Process and device for determining parameters governing resonance in a power-converter power supply |
| 03/21/1991 | WO1991003863A1 Process and device for the optimum operation of a pulse converter connected to a power supply |
| 03/21/1991 | WO1991003862A1 Device and process for optimum operation of a power converter connected to a power supply |
| 03/21/1991 | DE4019158A1 Switch circuit for current or voltage source |
| 03/21/1991 | DE4018165C1 High power insulated gate transistor circuitry - has additional capacitor and thyristor fired by rectifier overcurrent in series across DC voltage source |
| 03/20/1991 | EP0417747A2 Module-type semiconductor device of high power capacity |
| 03/20/1991 | CN2073629U Three phases capacity type of constant current rectificating device |
| 03/20/1991 | CN1050113A Method and apparatus for optimization of thyristor power supply transport time delay |
| 03/19/1991 | US5001622 Enhanced real-time control of PWM inverter |
| 03/19/1991 | US5001621 Inverter device including parallel resonant circuit using a total equivalent capacitance |
| 03/19/1991 | US5001619 Harmonics suppression control circuit for a PWM inverter |
| 03/14/1991 | DE3927734A1 Rectifier circuit for high blocking voltage - has FET control stage operating to provide high voltage operation with low losses |
| 03/13/1991 | EP0416608A2 A method and apparatus for the optimization of thyristor power supply transport time delay |
| 03/13/1991 | EP0416488A2 Method and means for provinding a turn-off blocking signal for a turn-off power semiconductor device |
| 03/13/1991 | EP0415923A1 High efficiency converter. |
| 03/13/1991 | CN2073192U Short-circuit self-protecting silicon-controlled single-phase inverter |
| 03/13/1991 | CN1049940A System and method of controlling power converters |
| 03/13/1991 | CN1012031B Controlled power supply for overspeed automatic chemical analyser |
| 03/12/1991 | US4999762 High voltage power source device |
| 03/12/1991 | US4999760 High voltage rectifier and associated control electronics |
| 03/12/1991 | US4999563 Separately power-feeding welding generator |
| 03/12/1991 | US4999561 Variable-speed driving system |
| 03/12/1991 | CA1281377C Power controller circuit with automatic correction for phase lag between voltage and current |
| 03/09/1991 | CA2024921A1 Method and apparatus for the optimization of thyristor power supply transport time delay |
| 03/07/1991 | WO1991003087A1 Arrangement of a valve stack for high voltage direct current in a valve hall |
| 03/06/1991 | EP0415490A2 Circuit arrangement for power supply to a load |
| 03/06/1991 | EP0415157A2 A control system for an electric vehicle |
| 03/06/1991 | CN1049760A Pulse width modulation type inverter having temp. compensation |
| 03/06/1991 | CN1049759A Technology for increasing electric power of electric appliance |
| 03/05/1991 | US4998054 Programmable current initilization for resonant DC link converter |
| 02/27/1991 | EP0414317A2 Inverter device |
| 02/27/1991 | EP0413966A2 Pulse width modulation type inverter having temperature compensation |
| 02/26/1991 | US4996637 Electrical converter utilizing switched uni-directional and bi-directional energy sources |
| 02/21/1991 | DE3926896A1 Regulating AC inverter circuit - monitoring current values for regulator circuit supply for rotating field machine |
| 02/20/1991 | EP0413514A2 Load compensating gain control for a series resonant inverter |
| 02/19/1991 | US4995069 X-ray tube apparatus with protective resistors |
| 02/19/1991 | US4994956 Enhanced real time control of PWM inverters |
| 02/19/1991 | US4994955 Half-bridge driver which is insensitive to common mode currents |
| 02/19/1991 | US4994951 PWM inverter control unit |
| 02/19/1991 | US4994950 Waveform generator for inverter control |
| 02/19/1991 | US4994940 Modular cabinet for electrical battery banks |
| 02/19/1991 | US4994717 Electronic stabilizer for a fluorescent lamp |
| 02/14/1991 | DE4024160A1 DC level controller with antiphase clocked switch pairs - performs two-term control of inductive load current maintained at desired value by selective switching circuit |
| 02/12/1991 | US4992925 Converter with intermediate d.c. circuit |
| 02/12/1991 | US4992924 Switching |
| 02/12/1991 | US4992923 Electrical power supply, fusing apparatus and recording apparatus using the same |
| 02/12/1991 | US4992922 Variable high-voltage generating circuit |
| 02/12/1991 | US4992921 Circuit arrangement for supplying a load |
| 02/12/1991 | US4992723 For a circuit breaker |
| 02/12/1991 | US4992702 Inverter capable of controlling operating frequency |
| 02/07/1991 | WO1991001589A1 Power supply inversion |
| 02/06/1991 | EP0411138A1 Inverter |