| Patents for H02M 1 - Details of apparatus for conversion (33,954) |
|---|
| 10/31/1978 | CA1041607A1 Firing apparatus for a plurality of electric valves |
| 10/24/1978 | US4122515 High harmonic current reducing apparatus in power converter |
| 10/24/1978 | CA1041180A1 Thyristor gate control for induction heating appliance |
| 10/24/1978 | CA1041168A1 Control unit for a converter |
| 10/17/1978 | US4121113 Electric switch |
| 10/10/1978 | US4119917 Sequentially triggering two or more hydrogen thyratrons with precision timing |
| 10/03/1978 | US4118768 Demand controlled preregulating rectifier circuit for power supplies |
| 09/26/1978 | US4117393 Electronic monitoring system with low energy consumption in quiescent state |
| 09/26/1978 | US4117392 Scr controller having input pulses mechanically generated by a signal source |
| 09/26/1978 | US4117351 Transistor switching circuit |
| 09/26/1978 | US4117350 Switching circuit |
| 09/26/1978 | CA1039354A1 Switching voltage regulator with low rfi noise |
| 09/19/1978 | US4115729 Multiphase to single phase and frequency converter system |
| 09/19/1978 | US4115707 Circuit for single-line control of GTO controlled rectifier conduction |
| 09/19/1978 | CA1038929A1 Gate pulse power supply for static alternating current switch |
| 09/12/1978 | CA1038502A1 Semiconductor switch device |
| 09/05/1978 | CA1038031A1 Protection circuit for magnetically controlled d-c to d-c converter |
| 09/05/1978 | CA1037686A1 Automatic lock slider for slide fasteners |
| 08/29/1978 | US4110781 Bidirectional grooved thyristor fired by activation of the beveled surfaces |
| 08/29/1978 | US4110678 Electronic monitoring system |
| 08/29/1978 | US4110638 Configuration for reducing the turn-off time of a thyristor |
| 08/29/1978 | CA1037557A1 Control of rotary-field electric machines |
| 08/22/1978 | US4109307 High power factor conversion circuitry |
| 08/22/1978 | US4109210 Method of generating a variable train of pulses |
| 08/15/1978 | US4107772 Chopper control device |
| 08/15/1978 | US4107552 Semiconductor switch |
| 08/15/1978 | US4107551 Thyristor turn-off system |
| 08/01/1978 | US4104715 Alternating current to alternating current converter apparatus |
| 07/18/1978 | US4101819 Three phase controlling system |
| 07/11/1978 | US4100435 Phase control apparatus |
| 07/11/1978 | US4100434 Gate controlling apparatus for a thyristor valve |
| 07/04/1978 | US4099109 Digital apparatus for synthesizing pulse width modulated waveforms and digital pulse width modulated control system |
| 06/20/1978 | US4096414 Dimmer control circuit |
| 05/02/1978 | US4087726 Constant-frequency current choppers for low-rate supply of an inductive load |
| 05/02/1978 | US4086983 Elevator control system |
| 04/25/1978 | US4086622 Frequency converter and method of operating same |
| 04/11/1978 | US4084223 Control unit |
| 04/11/1978 | US4084221 High-voltage thyristor converter |
| 04/11/1978 | US4084217 Alternating-current fed power supply |
| 03/21/1978 | US4080557 Battery operated circuits and A.C. charger means |
| 03/14/1978 | US4079270 Gate control apparatus |
| 03/14/1978 | US4078393 Control system for controlling the operation of a three-phase load |
| 02/21/1978 | US4075685 Emitter follower voltage controlled power supply |
| 02/14/1978 | US4074344 High power factor ac to dc converter circuit |
| 02/07/1978 | US4072882 Frequency current converter for energizing an AC machine |
| 01/31/1978 | US4071779 Semiconductor switch |
| 01/10/1978 | US4068158 High efficiency d.c. voltage regulator |
| 01/03/1978 | US4066956 Semiconductor switch device having means for supplying control current to a control electrode |
| 01/03/1978 | US4066916 Transistor drive circuits |
| 12/13/1977 | US4063307 Direct current power converter with start-up and protection circuits |
| 12/13/1977 | US4063306 Actively switched damping circuit |
| 12/13/1977 | US4063145 Circuit arrangement for firing controlled, parallel-connected electric valves |
| 12/13/1977 | US4063115 Semiconductor switch |
| 11/29/1977 | US4060758 Power switching circuit having a Darlington connected transistor pair |
| 11/08/1977 | US4057842 Current regulation system for three-phase load |
| 10/25/1977 | US4055794 Base drive regulator |
| 10/11/1977 | US4053945 Master-slave control method and device for a multiphase circuit |
| 10/11/1977 | US4053894 Radio signal switching system employing dielectric rod antennas |
| 10/11/1977 | US4053820 Active filter |
| 09/27/1977 | US4051426 Shoot through protected current driven transistor inverter circuit |
| 09/27/1977 | US4051425 Ac to dc power supply circuit |
| 09/20/1977 | US4050008 Control unit for an a-c control element with full-wave control |
| 09/13/1977 | US4048520 Three-phase SCR drive circuit using an opto-coupled pulse amplifier |
| 09/06/1977 | US4047081 Commutating arrangement for an electric motor supplied from a DC voltage source |
| 08/30/1977 | US4045722 Power converter system |
| 08/16/1977 | US4042873 Phase locked firing circuit for SCRS, or the like |
| 08/16/1977 | US4042856 Chopper ballast for gaseous discharge lamps with auxiliary capacitor energy storage |
| 08/09/1977 | US4041405 Sawtooth waveform generator |
| 08/09/1977 | US4041332 Semiconductor switch device |
| 08/02/1977 | US4039866 Thyristor control apparatus |
| 08/02/1977 | US4039865 Semiconductor switch |
| 07/12/1977 | US4035711 Rotary frequency-changer |
| 07/05/1977 | US4034232 System for synchronizing and phase shifting switching regulators |
| 06/28/1977 | US4032834 Method for triggering a controlled rectifier and for keeping it conductive and a generator for that purpose |
| 06/14/1977 | US4030021 Inverter |
| 06/14/1977 | US4030019 Static inverter control circuit |
| 06/07/1977 | US4028609 Digital firing pulse generator with pulse suppression |
| 05/31/1977 | US4027225 DC convertor |
| 05/24/1977 | US4025843 Constant current base-drive circuit |
| 05/17/1977 | US4024474 Circuit arrangement for wireless transmission of a control signal to the control path or a controllable semiconductor valve, in particular a thyristor |
| 05/17/1977 | US4024455 Rotary inverters for converting D.C. to A.C. |
| 05/10/1977 | US4023051 Rectifier switch with series-connected thyristors |
| 05/03/1977 | US4021720 Switching device for the control of, and reduction of power losses and radio disturbances associated with circuitry, comprising one or more switching members loaded by an inductance |
| 04/26/1977 | US4020409 Rectifying and smoothing circuit |
| 04/12/1977 | US4017744 Digital firing pulse generator for thyristor power converters |
| 04/05/1977 | US4016482 Pulse energy suppression network |
| 04/05/1977 | US4016433 GTO circuits |
| 04/05/1977 | US4016391 Induction heating apparatus with means for improving the dv/dt capability of a silicon-controlled rectifier used therein |
| 03/22/1977 | US4014003 Circuit for controlling a semi-conductor valve |
| 02/01/1977 | US4006368 A.C. voltage regulator including bilateral thyristor |
| 12/21/1976 | US3999114 Control unit for a converter |
| 12/21/1976 | US3999086 Drive circuit for a controllable electronic switching element, for example, a power transistor |
| 12/21/1976 | US3999034 Square wave welding system |
| 11/30/1976 | US3995176 Unidirectional alternating current interrupter operable over full half cycles |
| 11/23/1976 | USRE29048 AC and DC regulator circuit |
| 11/16/1976 | US3992638 Synchronous switch |
| 10/19/1976 | US3987378 Surface wave apparatus |
| 10/19/1976 | US3987356 Controlled capacitive filter for active loads |
| 10/19/1976 | US3987314 Circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor |
| 10/12/1976 | US3986099 Multi-purpose thyristor commutation circuit |