| Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094) |
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| 02/10/1982 | EP0045440A2 Device to obtain an approximate trapezoidal voltage at the alternating output of a cycloconverter |
| 02/02/1982 | US4314321 Ozonizer feeding device |
| 01/19/1982 | US4311956 Zero crossing phase fired controller |
| 01/19/1982 | US4311955 Phase control device which compensates for input variations |
| 01/12/1982 | US4310791 Induction motor control system |
| 01/12/1982 | CA1116233A1 Electrical convertor |
| 01/05/1982 | US4309752 Cycloconverter apparatus with controllable end stop firing pulse control means |
| 12/29/1981 | US4308491 Automatic fault protection system for power recovery control |
| 12/24/1981 | WO1981003731A1 Lighting system |
| 12/22/1981 | US4307444 Method and apparatus for stabilized integral control of static power frequency changers |
| 12/22/1981 | US4307442 Transmission line interconnecting system |
| 12/15/1981 | US4306161 Simple method of switching an AC line |
| 12/01/1981 | US4303972 Controlling the circulating current in naturally commutated static power converters |
| 11/24/1981 | US4302717 Power supply with increased dynamic range |
| 11/24/1981 | CA1113153A1 Temperature control apparatus |
| 11/18/1981 | EP0039917A2 Circuit arrangement for damping power oscillations in power systems |
| 11/12/1981 | WO1981003247A1 Automatic fault protection system for power recovery control |
| 11/11/1981 | EP0039616A2 Automatic fault protection system for power recovery control |
| 11/10/1981 | US4300090 Direct current power supply |
| 11/10/1981 | CA1112295A1 Programmable lighting control system |
| 11/04/1981 | EP0039281A2 Intermediate circuit adapter for static converter assembly |
| 11/03/1981 | US4298842 Heteropolar machine for demodulating polyphase voltages interfering among themselves |
| 10/20/1981 | US4296367 Speed control method for AC motors and an apparatus for the control |
| 10/13/1981 | US4295190 Bank selection in naturally commutated thyristor controlled static power converters |
| 10/13/1981 | CA1110721A1 Static circuit arrangement for production of 3-phase current of variable frequency and output power |
| 10/07/1981 | EP0037088A1 Method for emergency operation at low supply voltage of an asynchronous machine with inverter and direct current regulator |
| 09/23/1981 | EP0036267A1 Cycloconverter with waveform improving feedback |
| 09/09/1981 | EP0035339A1 Current control device |
| 09/02/1981 | EP0034808A2 Circuit arrangement for the compensation of a phase difference |
| 09/01/1981 | US4287468 Dimmer control system |
| 09/01/1981 | CA1108249A1 Control circuit for generating a step-type control signal and a continuously varying control signal whose amplitude characteristic repeats at the step transition |
| 08/19/1981 | EP0033842A2 Method for mains feedback of a line commutated direct converter and control circuit therefor |
| 08/18/1981 | CA1107335A1 Method and apparatus for induction heating and melting furnaces to obtain constant power |
| 08/11/1981 | US4283638 Field effect transistor switched temperature control circuit |
| 07/28/1981 | US4281378 Frequency inverter |
| 07/28/1981 | US4281375 Static frequency converter |
| 07/28/1981 | US4281371 Cycloconverter with waveform improving nonlinear feedback |
| 07/21/1981 | US4280038 Method and apparatus for inducting heating and melting furnaces to obtain constant power |
| 07/15/1981 | EP0032094A2 Circuit for converting an alternating voltage to a voltage of a lower frequency, specially for feeding the vertical deflection coil of a television receiver |
| 07/07/1981 | CA1104660A1 Load responsive trigger interval control for induction heating apparatus having inversely parallel connected thyristors |
| 07/07/1981 | CA1104659A1 Commutating circuit for induction heating |
| 07/07/1981 | CA1104650A1 Capacitive voltage transformer with improved compensating reactor arrangement |
| 07/07/1981 | CA1104645A1 Treble frequency converter |
| 06/30/1981 | CA1104208A1 Phase control apparatus |
| 06/23/1981 | CA1103755A1 Induction motor control system |
| 06/23/1981 | CA1103748A1 High power factor conversion circuitry |
| 06/17/1981 | EP0030468A1 Cycloconverters and methods of operating them |
| 06/16/1981 | US4274135 Gating circuit for high voltage thyristor strings |
| 06/16/1981 | US4274045 Power supply and control circuit for series connected controller |
| 06/16/1981 | US4274042 AC Motor drive system having clamped command error signal |
| 06/11/1981 | WO1981001635A1 Cycloconverters and methods of operating them |
| 06/09/1981 | US4272807 Regenerative DC power supply |
| 06/09/1981 | US4272715 System for controlling torque of induction motors |
| 06/02/1981 | US4271462 Power converter and regulation apparatus |
| 05/27/1981 | EP0029252A2 Controlling the circulating current in naturally commutated static power converters |
| 05/27/1981 | EP0029251A2 Method and apparatus for stabilized integral control of static power frequency changers |
| 05/27/1981 | EP0029250A2 Bank selection in naturally commutated thyristor controlled static power converters |
| 05/27/1981 | EP0029249A2 Cycloconverter apparatus with controllable end stop firing pulse control means |
| 05/26/1981 | US4270058 Power supply and control circuit for series connected controller |
| 05/12/1981 | CA1101057A2 Plural bridge power converter |
| 05/12/1981 | CA1101056A1 Plural bridge power converter |
| 04/24/1981 | EP0020725A4 Phase control arrangement to limit output signal transients during power source substitution in an uninterruptible power supply. |
| 04/14/1981 | US4262256 Energy extraction system from a capacitive source with shunt switching regulation |
| 04/14/1981 | US4262213 Universal power module |
| 04/08/1981 | EP0026374A1 Device for transferring high-power electric energy from a higher frequency three-phase supply network to a lower frequency single-phase load network |
| 04/07/1981 | US4260947 Phase control circuit for regulating power |
| 03/31/1981 | US4259714 Frequency converter with an intermediate d-c link |
| 03/31/1981 | US4259630 AC Motor controller |
| 03/17/1981 | US4256951 Repetition rate power control for appliance using high current inrush elements |
| 03/17/1981 | CA1097727A1 Lamp ballast circuit |
| 03/13/1981 | EP0020640A4 High efficiency, light weight audio amplifier and power supply. |
| 03/10/1981 | US4255782 Electrical energy conversion systems |
| 02/17/1981 | US4251764 Interface circuit for interconnecting an electronic controller to a resistance welding machine |
| 01/27/1981 | US4247887 AC--AC Converter device |
| 01/13/1981 | US4245287 Method of controlling switching of a multiphase inductor-converter bridge |
| 01/07/1981 | EP0020725A1 Phase control arrangement to limit output signal transients during power source substitution in an uninterruptible power supply. |
| 01/07/1981 | EP0020640A1 High efficiency, light weight audio amplifier and power supply. |
| 12/16/1980 | US4240025 Feeding system for incandescent lamps by overhead wires of transmission lines |
| 12/09/1980 | US4238821 Method and apparatus for a variable frequency inverter system having commutation fault detection and correction capabilities |
| 12/09/1980 | US4238691 Phase control arrangement to limit output signal transients during power source substitution in an uninterruptible power supply |
| 12/02/1980 | US4237377 Photoelectric lamp control with sun-synchronized timer |
| 11/11/1980 | US4233546 Stroboscopic beacons fed from a capacitive source |
| 10/07/1980 | US4227243 Converters |
| 10/01/1980 | EP0016538A1 DC-DC converter including a high-frequency inverter, and battery charger incorporating same |
| 09/30/1980 | US4225914 Frequency converters |
| 09/30/1980 | US4225911 Apparatus and method for reducing overvoltage transients on the outputs of a VSCF system |
| 09/16/1980 | US4223207 Apparatus for controlling the power supplied to a load |
| 09/16/1980 | CA1085920A1 Static single phase to three phase converter for variable ac loads |
| 09/16/1980 | CA1085919A1 Electronic power control device |
| 09/09/1980 | US4221750 Method of curing phenolic resin in an electrical apparatus without degrading polyethyleneterephthalate insulation also in the electrical apparatus |
| 09/02/1980 | CA1084994A1 Method and apparatus for regulating electrical power delivered from an alternating current network |
| 08/26/1980 | CA1084593A1 Central oscillator for induction range using triac burner controls |
| 08/19/1980 | US4218732 Phase angle balancing circuit for a variable speed constant frequency power system |
| 08/05/1980 | US4216385 AC/DC Power supply device |
| 07/29/1980 | CA1082770A1 Variable speed, constant frequency induction generator system |
| 07/29/1980 | CA1082765A1 Plural multiphase motor drive circuit |
| 07/23/1980 | EP0013615A1 Apparatus for controlling a.c. motor |
| 07/22/1980 | CA1082307A1 Frequency coverter |
| 07/15/1980 | US4213173 Polarity-and-load independent circuit arrangement for converting electrical energy |
| 07/10/1980 | WO1980001443A1 Phase synchronism system for power source transfer |