| Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189) |
|---|
| 04/03/1990 | US4914539 Regulator for inductively coupled power distribution system |
| 04/03/1990 | US4914396 PWM waveform generator |
| 03/29/1990 | DE3930543A1 Frequency generator with pulse width modulation - has frequency modulated between 10 and 200 HZ with 15 per cent amplitude modulation |
| 03/28/1990 | EP0360210A2 Control apparatus and method for controlling an inverter for driving AC motor |
| 03/28/1990 | EP0360156A2 Power supply |
| 03/27/1990 | US4912622 Gate driver for a full-bridge lossless switching device |
| 03/27/1990 | US4912619 Circuit for limiting inrush current during initial turn-on of a clock-derived power supply |
| 03/27/1990 | US4912618 Variable speed, constant frequency generating system with input transformer |
| 03/22/1990 | DE3829116A1 DC-isolated DC/AC converter (invertor) having high efficiency |
| 03/21/1990 | EP0359210A2 Inverter having a broad output-control range |
| 03/21/1990 | CN1040726A Apparatus for conversion |
| 03/20/1990 | US4910375 Inverter-type resistance welding machine |
| 03/20/1990 | CA1266929A1 Power source device for driving liquid crystal |
| 03/15/1990 | DE3831126A1 Circuit arrangement and control method for a power inverter having impressed intermediate-circuit voltage |
| 03/14/1990 | EP0358470A1 Inductive coupler |
| 03/14/1990 | EP0358191A2 PWM-controlled power supply capable of eliminating modulation-frequency signal components from ground potentials |
| 03/13/1990 | US4908756 Detecting apparatus for abnormality in inverter circuit |
| 03/13/1990 | US4908738 Drive motor control unit |
| 03/13/1990 | US4908734 Housing for motor control unit |
| 03/13/1990 | US4908551 DC/AC bridge circuit |
| 03/08/1990 | WO1990002442A1 Current limiting system for a voltage-type inverter |
| 03/08/1990 | WO1990002441A1 Regulated transformer rectifier unit |
| 03/08/1990 | WO1990002438A1 Device for control of rectifiers |
| 03/07/1990 | EP0357411A2 Controlled-inductance regulator for switching power supplies |
| 03/07/1990 | EP0356991A2 Inverter device |
| 03/07/1990 | EP0356547A1 Process for controlling a three-level inverter |
| 03/07/1990 | CN2054231U Large power digital control apparatus for regulating voltage and changing crurent |
| 03/07/1990 | CN1040293A Power generator |
| 03/06/1990 | US4907145 Sine wave inverter |
| 03/06/1990 | US4907068 Semiconductor arrangement having at least one semiconductor body |
| 02/28/1990 | EP0355698A2 Electrical power supply, fusing apparatus and recording apparatus using the same |
| 02/28/1990 | CN1007028B Method of controlling transducer arrangement |
| 02/27/1990 | US4905135 Inverter apparatus |
| 02/27/1990 | US4904904 Electronic transformer system for powering gaseous discharge lamps |
| 02/22/1990 | WO1990001826A1 Pwm inverter control method and circuit |
| 02/22/1990 | EP0344243A4 Quasi-resonant current mode static power conversion method and apparatus. |
| 02/22/1990 | DE3839505C1 Electrical power supply device |
| 02/21/1990 | CN2053402U Magnetic work adjuster |
| 02/21/1990 | CN2053401U Automatic power switch of multivibrating dc-to-ac convertor |
| 02/21/1990 | CN1039945A Technology of saving lighting electricity |
| 02/20/1990 | US4903189 Low noise, high frequency synchronous rectifier |
| 02/20/1990 | US4903188 Pulse width modulated inductive load controller |
| 02/20/1990 | US4903187 Control for variable frequency drive |
| 02/20/1990 | US4903186 Transformer-rectifier with ripple filter |
| 02/20/1990 | US4903185 Filtering device of the common mode disturbances affecting the printed circuit boards of a static power converter |
| 02/15/1990 | DE3540551C1 Semiconductor module for fast switching arrangement |
| 02/14/1990 | EP0354535A2 An electric power converter |
| 02/14/1990 | EP0161283B1 Inverter control system for providing an easily filtered output |
| 02/13/1990 | US4901217 Digital input power supply and method |
| 02/13/1990 | US4901216 Power supply regulated by modulating the inductance in a resonant LC circuit |
| 02/13/1990 | US4901001 Power converter for AC load |
| 02/13/1990 | US4900989 Magnetron feeding apparatus and method of controlling the same |
| 02/13/1990 | CA1265843A1 Voltage divider circuit |
| 02/08/1990 | WO1990001230A1 Switched electrical power conversion and balancing |
| 02/07/1990 | EP0353715A2 Frequency changer |
| 02/07/1990 | EP0353569A2 Method to avoid AC instabilities in a negative mains supply inverter for a converter with an intermediate DC circuit in case of a dynamic voltage drop, and circuit arrangement for carrying out the method |
| 02/07/1990 | CN2052589U Isolation transformer of superminiature simulated power source |
| 02/06/1990 | US4899271 Power supply circuit |
| 01/31/1990 | EP0353112A1 DC/DC "Cük" converter and mains supply with direct conversion realised by means of such a converter |
| 01/31/1990 | EP0352304A1 Vehicle circuit system |
| 01/30/1990 | US4897775 Control circuit for resonant converters |
| 01/30/1990 | US4897522 Output control circuit for inverter |
| 01/30/1990 | CA1265187A1 Process to achieve no-load operation of an asynchronous machine supplied by a thyristor invertor |
| 01/25/1990 | WO1990000830A1 Conversion circuit for limiting inrush current |
| 01/25/1990 | WO1990000829A1 System for converting variable frequency multiple phase alternating current into constant frequency multiple phase alternating current with neutral |
| 01/24/1990 | EP0351898A2 Inductance and capacitance charge pump circuit for driving power MOS transistor bridges |
| 01/24/1990 | EP0351783A2 PWM inverter apparatus |
| 01/24/1990 | CN2051800U 高效电源逆变器 Efficient Power Inverter |
| 01/24/1990 | CN1039159A Gated separable power adapter |
| 01/24/1990 | CN1039158A Uninterruptible power source equipment |
| 01/23/1990 | CA1264806A1 Method and converter for feeding direct current to a plurality of electric loads |
| 01/23/1990 | CA1264805A1 Energy converter |
| 01/17/1990 | CN1038904A Computerized controller for medium-frequency scr invert bridge |
| 01/16/1990 | US4894765 Bi-directional d.c./d.c. converter compatible with an inverter bridge |
| 01/16/1990 | US4894763 AC-AC converter using switches in a DC link |
| 01/16/1990 | US4894762 Method and apparatus to avoid commutation failure in a regenerative converter |
| 01/16/1990 | US4894621 Circuit for five level waveform synthesis |
| 01/11/1990 | DE3931558A1 Rectifier loading control circuit in DC=AC converter - uses voltage and current controlled power setting devices with LP filter and PI-controller |
| 01/04/1990 | DE3914975A1 Method for synchronously driving pulse-controlled invertors |
| 01/04/1990 | DE3914974A1 Method for synchronously driving pulse-controlled invertors |
| 01/04/1990 | DE3822493A1 Energy-recovering load-reducing network for electronic branch pairs connected in antiparallel |
| 01/04/1990 | DE3821856A1 Electronic circuit for the parallel AC network operation of renewable energy |
| 01/03/1990 | EP0348416A1 Zener diode detector circuit. |
| 01/03/1990 | CN2050664U Low voltage large current commutating device |
| 01/03/1990 | CN1038555A Method and circuit for voltage regulation of dc power sources |
| 01/03/1990 | CN1006348B Bridge type fully controlled rectification circuit |
| 01/03/1990 | CN1006345B Excess current protective circuit of converter |
| 01/02/1990 | US4891745 Autocontrol circuit for a resonance undulator |
| 01/02/1990 | US4891741 AC/DC converters |
| 12/27/1989 | EP0347427A1 Circuit arrangement for operating a gas discharge lamp on a direct current source. |
| 12/27/1989 | CN2050238U Stop negative feedback switch regulated reserve changing power supply |
| 12/27/1989 | CN1006268B 逆变器 Inverter |
| 12/26/1989 | US4890214 Start circuit for adapting a constant current generator to a wide variety of loads |
| 12/26/1989 | US4890213 Power converter device having starting circuits and a method for starting the power converter device |
| 12/26/1989 | US4890190 Method of selecting optimum series limiting resistance for high voltage control circuit |
| 12/21/1989 | DE3926628A1 Method for producing a turn-on enable signal |
| 12/21/1989 | DE3820562A1 Power supply source for a pulse-supplied electric motor |
| 12/20/1989 | EP0347322A1 Stable power supply with a low ripple ratio |
| 12/20/1989 | EP0346424A1 Converter for converting a multiple phase variable frequency ac voltage into dc |
| 12/19/1989 | US4888676 Damping circuit for turn-off valves |