| 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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| 04/08/1981 | EP0026354A1 Circuit arrangement for multiple-pole fault current protection switches |
| 04/07/1981 | US4260936 Master-slave power amplifiers |
| 04/02/1981 | WO1981000936A1 Apparatus for providing multiphase current |
| 04/01/1981 | EP0026033A1 D.C. power supply |
| 03/31/1981 | US4259714 Frequency converter with an intermediate d-c link |
| 03/31/1981 | US4259713 High voltage direct current transmission |
| 03/31/1981 | US4259581 High-power diagnostical X-ray equipment with thyristor converter |
| 03/31/1981 | US4258829 Elevator system |
| 03/31/1981 | CA1098584A1 Device comprising a transformer for step-wise varying voltages |
| 03/31/1981 | CA1098582A1 Voltage multipliers |
| 03/24/1981 | US4258416 Inverter power conversion system having improved control scheme |
| 03/24/1981 | US4258415 Apparatus for supplying current of changing polarity to a load object |
| 03/24/1981 | US4258302 Apparatus for maintaining synchronism of an inverter-synchronous machine drive system at light or zero machine loads |
| 03/24/1981 | CA1098169A2 Electrostatic coating system |
| 03/18/1981 | EP0025173A2 Integrated rectifier circuit |
| 03/17/1981 | US4257091 Electrical power converter thyristor firing circuit having noise immunity |
| 03/17/1981 | US4256992 Electric device for starting and feeding a metal vapor discharge lamp provided with a preheatable electrode |
| 03/17/1981 | CA1097737A1 Digital pulse width inverter control systems |
| 03/17/1981 | CA1097728A1 Direct drive ballast circuit |
| 03/17/1981 | CA1097727A1 Lamp ballast circuit |
| 03/10/1981 | US4255784 Transformer-rectifier apparatus |
| 03/10/1981 | US4255783 Selective commutation circuit for an inverter |
| 03/10/1981 | US4255694 Power amplifier with power monitor circuit |
| 03/03/1981 | US4254458 Inverter systems |
| 03/03/1981 | US4254362 Power factor compensating electroluminescent lamp DC/AC inverter |
| 03/03/1981 | CA1096956A1 Method and apparatus for measuring the thickness of a body |
| 02/24/1981 | US4253140 Method and apparatus for improved control of auxiliary impulse commutated inverters |
| 02/24/1981 | US4253138 Fast/slow acting current limited for inverter power supply |
| 02/17/1981 | US4251857 Loss compensation regulation for an inverter power supply |
| 02/17/1981 | US4251763 Commutating capacitor charge detection circuit and method |
| 02/17/1981 | US4251757 Power control system and apparatus thereof |
| 02/17/1981 | US4251736 Method for controlling power flow between an electrochemical cell and a power grid |
| 02/17/1981 | US4251735 Dual speed control circuit for power flow through an inverter |
| 02/17/1981 | CA1095983A1 Direct digital technique for generating an ac waveform |
| 02/17/1981 | CA1095974A1 Dual mode solid state inverter circuit for starting and ballasting gas discharge lamps |
| 02/17/1981 | CA1095973A1 Discharge lamp auxiliary circuit with di/dt switching control |
| 02/11/1981 | EP0023683A1 Bridge rectifier circuit |
| 02/03/1981 | US4249236 Controller for power converter |
| 02/03/1981 | US4249235 Circuit arrangement for inexpensive production of three-phase current from dc current |
| 02/03/1981 | CA1094836A1 Heat pumps |
| 01/28/1981 | EP0023116A1 PWM inverter device |
| 01/27/1981 | US4247890 Reversible inverter system having improved control scheme |
| 01/27/1981 | US4247888 Static convertor apparatus |
| 01/21/1981 | EP0022699A1 High efficiency mains power supply for gas discharge tubes |
| 01/21/1981 | EP0022663A1 PWM inverter device |
| 01/20/1981 | US4246636 Flyback transformer having terminal pins for connection to printed circuit boards |
| 01/20/1981 | CA1094155A1 Flyback transformer and high tension lead assembly |
| 01/13/1981 | US4245295 Apparatus for the controlled voltage supply of D.C. drives |
| 01/13/1981 | US4245294 Power supply providing constant power output |
| 01/13/1981 | US4245293 Power converter system |
| 01/13/1981 | US4245291 Electric power converter apparatus for an a.c. electric rolling stock |
| 01/13/1981 | US4245290 Sliding notch pulse width modulation (PWM) |
| 01/13/1981 | US4245183 RMS Circuit for voltage regulation |
| 01/13/1981 | US4245177 Inverter for operating a gaseous discharge lamp |
| 01/07/1981 | EP0021714A1 Rectifier power-supply circuits |
| 01/06/1981 | US4244017 Third harmonic auxiliary commutated inverter having selectable commutation capacitance as a function of load current |
| 01/06/1981 | US4244016 Sine-wave static converter |
| 01/06/1981 | US4244015 Pulse width modulated inverter |
| 01/06/1981 | CA1093153A1 Circuit for detecting a missed commutation in a self- commutating inverter |
| 12/23/1980 | US4241360 Series capacitor voltage multiplier circuit with top connected rectifiers |
| 12/23/1980 | US4241250 Induction cooking system |
| 12/23/1980 | CA1092190A1 Six-pulse rectifier circuit |
| 12/23/1980 | CA1092189A1 Inverter starting system |
| 12/16/1980 | US4240135 Regulated cycloconverter circuit |
| 12/16/1980 | US4239978 Method and system to supply electrical energy to a self-contained electrical network at multiple voltage level, multiple power range, particularly for mobile application |
| 12/11/1980 | WO1980002779A1 A high repetition rate power pulse generator |
| 12/10/1980 | EP0019932A1 Continuous power source with bi-directional converter |
| 12/10/1980 | EP0019798A1 Circuit for improving the firing angle symmetry of the firing pulses provided by a control element to a multiphase rectifier |
| 12/09/1980 | US4238823 Inverter apparatus |
| 12/09/1980 | US4238820 Variable wave-form converter |
| 12/09/1980 | US4238644 Supply circuit for a subscriber's line circuit |
| 12/09/1980 | CA1091295A1 Operational rectifier |
| 11/25/1980 | US4236201 Inverter device |
| 11/25/1980 | US4236199 Regulated high voltage power supply |
| 11/25/1980 | US4236197 Voltage regulation loop for inverter power supply |
| 11/25/1980 | CA1090422A1 Monitoring the conduction cutoff phase angles in rectifiers |
| 11/25/1980 | CA1090416A1 Method ad apparatus for shutting down an inverter |
| 11/18/1980 | US4234917 Commutation failure detection and restoration for SCR frequency converters |
| 11/11/1980 | US4233658 Transistorized D-C/A-C converter |
| 11/11/1980 | US4233558 Regulated dual DC power supply |
| 11/04/1980 | CA1089030A1 Current drive circuits |
| 11/04/1980 | CA1089012A2 Circuit for controlling the reverse current in a controlled rectifier |
| 11/04/1980 | CA1089011A1 Discharge lamp ballast circuit |
| 10/29/1980 | EP0018186A1 Improved inverter circuit |
| 10/28/1980 | US4231083 Power conversion apparatus |
| 10/21/1980 | CA1088195A1 Zero phase switching for multi-phase systems |
| 10/21/1980 | CA1088155A1 Semiconductor power converting cooling apparatus |
| 10/15/1980 | EP0017642A1 Circuit for the consistent double-pulse ignition of a thyristor bridge for both directions of the rotating field |
| 10/15/1980 | EP0016774A1 Electrical power transfer circuit |
| 10/14/1980 | US4228494 Constant current source |
| 10/14/1980 | US4228491 Control method for a three-phase self-excited inverter |
| 10/14/1980 | US4228382 Power regulating inverter circuit |
| 10/07/1980 | US4227243 Converters |
| 10/07/1980 | US4227143 High-voltage transformer |
| 10/07/1980 | US4227029 Method and apparatus for eliminating D.C. in an electric glass melting furnace |
| 10/01/1980 | EP0016537A1 Regulated power supply with loss compensation |
| 09/30/1980 | US4225912 Control for an auxiliary commutation circuit |
| 09/30/1980 | CA1086865A1 Cooling capsule for a thyristor |
| 09/30/1980 | CA1086815A1 High frequency transistor ballast |
| 09/23/1980 | US4224661 Externally commutated compensation-type converter system and method of forced commutation and blocking of rectifiers thereof |