| 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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| 08/08/1978 | US4106089 Alternating current power dividing or combining system |
| 08/08/1978 | US4106088 Current drive circuits |
| 08/08/1978 | US4106087 Power-supply device for working machine such as a spark-erosion machine |
| 08/08/1978 | US4106085 HVDC Floating current order system |
| 08/08/1978 | US4105957 Full wave bridge power inverter |
| 08/08/1978 | US4105939 Direct digital technique for generating an AC waveform |
| 08/01/1978 | US4104715 Alternating current to alternating current converter apparatus |
| 08/01/1978 | US4104537 Static converter equipment |
| 07/25/1978 | US4103356 Synchronized push-pull inverter |
| 07/25/1978 | US4103325 Aircraft power and phase converter |
| 07/11/1978 | US4100595 Circuit for the production of an output voltage depending on an input direct voltage and a given desired voltage |
| 07/11/1978 | US4100476 Single secondary dimming inverter/ballast for gas discharge lamps |
| 07/04/1978 | US4099225 Protective circuit for an inverter |
| 07/04/1978 | US4099109 Digital apparatus for synthesizing pulse width modulated waveforms and digital pulse width modulated control system |
| 06/27/1978 | US4097773 Switched mode power supply |
| 06/27/1978 | US4097767 Operational rectifier |
| 06/20/1978 | US4096559 Power supply circuit |
| 06/20/1978 | US4096558 Method of controlling a three-phase inverted rectifier and equipment for carrying out this method |
| 06/20/1978 | US4096557 Controllable four quadrant a.c. to a.c. and d.c. converter employing an internal high frequency series resonant link |
| 06/20/1978 | US4096410 Inverter circuit protection |
| 06/13/1978 | US4095162 Capacity changer |
| 06/13/1978 | US4095128 Push-pull switching circuit with minority carrier storage delay |
| 05/30/1978 | US4092510 Multiple-load induction heating cooking apparatus with means for eliminating interference between two or more commutation circuits |
| 05/30/1978 | US4092509 Induction heating appliance circuit that produces relatively high frequency signals directly from a relatively low frequency AC power input |
| 05/16/1978 | US4090234 Input tap changer |
| 05/16/1978 | US4090233 Spatial arrangement of the valves of a three-pulse converter system |
| 05/09/1978 | US4088937 Control apparatus |
| 05/09/1978 | US4088001 Method of manufacturing a strut member made of a tube material for use with drum brakes |
| 05/02/1978 | US4087851 Circuit arrangement for supplying an inductive load |
| 04/25/1978 | US4086624 Current to voltage converter |
| 04/25/1978 | US4086623 Method and apparatus for controlling an inverted rectifier |
| 04/25/1978 | US4086622 Frequency converter and method of operating same |
| 04/25/1978 | US4086621 Cycloconverter and method for its operation |
| 04/18/1978 | US4085342 High voltage A.C. to low voltage D.C. switching interface circuit |
| 04/11/1978 | US4084220 Power converter |
| 04/11/1978 | US4084217 Alternating-current fed power supply |
| 04/11/1978 | US4084205 Phase monitoring arrangement for a three phase network supplying a d.c. motor through a controlled converter |
| 03/21/1978 | US4080647 Electric voltage multiplier assembly |
| 03/21/1978 | US4080645 Converter valve comprised of a plurality of modular elements |
| 03/14/1978 | US4079444 D.C. to A.C. electronic inverter with overload protection |
| 03/14/1978 | US4079443 Circuit arrangement for starting up a converter having forced commutation with correct phase |
| 03/14/1978 | US4079410 Semiconductor rectifier device with improved cooling arrangement |
| 03/07/1978 | US4078247 Inverter circuit control circuit for precluding simultaneous conduction of thyristors |
| 02/28/1978 | USRE29560 Peak load levelling system |
| 02/28/1978 | US4077057 Gas-insulated thyristor arrangement comprising a pressure encapsulation formed in the manner of a tank |
| 02/28/1978 | US4076996 Power supplier for magnetron |
| 02/14/1978 | US4074345 Electronic power supply |
| 02/07/1978 | US4072882 Frequency current converter for energizing an AC machine |
| 01/31/1978 | US4071900 Control device for an inverted rectifier |
| 01/31/1978 | US4071812 AC Inverter with constant power output |
| 01/10/1978 | US4068294 Circuit for detecting a missed commutation in an inverter |
| 01/03/1978 | US4067057 DC to AC switching converter |
| 01/03/1978 | US4066954 Frequency converter |
| 12/27/1977 | US4065802 Inverter circuit for induction heating cooking ovens with a protection device |
| 12/27/1977 | US4065686 Multiphase full-wave rectifier assembly |
| 12/13/1977 | US4063144 Inverter for providing a sinusodial output having a low harmonic content |
| 12/13/1977 | US4063143 Inverter arrangement with two controlled three-phase inverters |
| 12/13/1977 | US4063108 Inverter lockout circuit |
| 12/06/1977 | US4061948 Or electrically braked motors of spinning machines |
| 11/29/1977 | US4060757 Inverters having a transformer-coupled commutating circuit |
| 11/29/1977 | US4060752 Discharge lamp auxiliary circuit with dI/dt switching control |
| 11/29/1977 | US4060751 Dual mode solid state inverter circuit for starting and ballasting gas discharge lamps |
| 11/22/1977 | US4059792 Method for producing rectifier with switches of asymmetric voltage breakdown strengths |
| 11/15/1977 | US4058742 Radio frequency pulse transmitters |
| 11/15/1977 | US4058738 Method and circuit arrangement for starting up a converter having forced commutation with the correct phase |
| 11/15/1977 | US4058696 Induction heating apparatus comprising a static converter |
| 11/01/1977 | US4056768 Static convertor plant |
| 11/01/1977 | US4056767 Cooling arrangement for semiconductor converter device |
| 11/01/1977 | US4056734 Compensated base drive circuit to regulate saturated transistor current gain |
| 10/25/1977 | US4055740 Induction heating apparatus using a saturable reactor for power control purposes |
| 10/11/1977 | USRE29441 Direct current power supply for manual arc welding |
| 10/11/1977 | US4053796 Rectifying circuit |
| 10/04/1977 | US4052659 Overload protection system for power inverter |
| 10/04/1977 | US4052658 Inverter circuit for producing synthesized sinusoidal waveforms |
| 10/04/1977 | US4052657 Distribution system for a. c. electrical energy derived from d. c. energy sources |
| 10/04/1977 | US4052642 Apparatus for controlling controlled systems with dead time |
| 10/04/1977 | US4052631 Rotary rectifier device for electric machines |
| 09/27/1977 | US4051445 Inverter converter circuit for maintaining oscillations throughout extreme load variations |
| 09/27/1977 | US4051425 Ac to dc power supply circuit |
| 09/27/1977 | US4051413 Transistorized static inverters |
| 09/27/1977 | US4051045 Ozone generating apparatus |
| 09/20/1977 | US4050006 Inverter having constant frequency chopper synchronized to modulation frequency |
| 09/20/1977 | US4050005 Dual phase input multiplier |
| 09/20/1977 | US4050004 Cardiac pacer including controlled voltage multiplier |
| 09/13/1977 | USRE29400 Direct current power supply for manual arc welding |
| 09/13/1977 | US4048554 Variable frequency, variable voltage power supply |
| 09/13/1977 | US4048552 Digitally regulated inverter |
| 09/06/1977 | US4047092 High frequency inverter |
| 09/06/1977 | US4047090 Digital controlled low frequency power amplifier |
| 09/06/1977 | US4047089 Starting circuit for inverter |
| 09/06/1977 | US4047083 Adjustable speed A-C motor drive with smooth transition between operational modes and with reduced harmonic distortion |
| 08/30/1977 | US4045732 Device for sensing the operative status of electrical equipment |
| 08/30/1977 | US4045722 Power converter system |
| 08/30/1977 | US4045711 Tuned oscillator ballast circuit |
| 08/23/1977 | US4044295 Over-voltage interrupt for a phase controlled regulator |
| 08/16/1977 | US4042874 High-voltage a.c. power supply with automatically variable d.c. bias current |
| 08/16/1977 | US4042873 Phase locked firing circuit for SCRS, or the like |
| 08/16/1977 | US4042855 High frequency transistor ballast |
| 08/16/1977 | US4042852 Fluorescent lamps with high frequency power supply with inductive coupling and SCR starter |
| 08/16/1977 | US4041894 Electronic arrangement for generating two alternating voltages whose phases are shiftable |