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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02/26/1980 | US4190873 Protective device for an electron tube |
02/20/1980 | EP0008296A1 Supplier of direct current with superimposed alternating current. |
02/19/1980 | US4189764 Current controlled inverter |
02/19/1980 | US4189669 Circuit arrangement for generating a pulse-width modulated signal |
02/12/1980 | US4188663 Protective device of a current source inverter |
02/12/1980 | US4188660 Direct drive ballast circuit |
02/06/1980 | EP0007920A1 Auxiliary commutation circuit for an inverter |
01/29/1980 | US4186434 Means for producing and controlling dead-time of the switching transistors DC-to-DC and DC-to-AC converters |
01/29/1980 | US4186391 Apparatus for detecting diode failures in multiple diode rectifier bridges |
01/29/1980 | CA1070763A1 Ac inverter with constant power output |
01/29/1980 | CA1070762A1 D.c. to a.c. electronic inverter with overload protection |
01/29/1980 | CA1070756A1 Phase monitoring arrangement for a three phase network supplying a d.c. motor through a controlled converter |
01/15/1980 | US4184211 Output stage for switching regulated power supply |
01/15/1980 | US4184198 Three-phase voltage generator responsive to DC control pulses |
01/15/1980 | US4184128 High efficiency push-pull inverters |
01/15/1980 | US4184075 X-ray diagnostic generator comprising an inverter feeding the high voltage transformer |
01/15/1980 | CA1069987A1 High voltage a.c. to low voltage d.c. switching interface circuit |
01/15/1980 | CA1069974A1 Digitally regulated inverter |
01/01/1980 | US4181932 Power converter |
01/01/1980 | US4181931 Two-phase control system |
01/01/1980 | CA1069186A Inverter circuit for induction heating cooking ovens with a protection device |
01/01/1980 | CA1069176A Muting control circuit for use with a power amplifier |
12/27/1979 | WO1979001165A1 Power transfer circuit |
12/25/1979 | US4180853 Two-stage commutation circuit for an inverter |
12/25/1979 | US4180745 Power regulating supply system for AC electrical loads |
12/18/1979 | US4179729 Rotary electric machine and power conversion system using same |
12/18/1979 | US4179727 Control device for a pulse-width modulated inverter |
12/18/1979 | CA1068352A1 Induction heating apparatus comprising a static converter |
12/11/1979 | US4178629 D. C. Powered A. C. supply for reactive loads |
12/11/1979 | US4178521 Base drive circuit |
12/04/1979 | US4177507 Method and control for maintaining optimum performance of HVDC power transmission systems at rectifier end during A. C. system fault |
12/04/1979 | US4177494 Circuit arrangement for producing an open magnetic field |
12/04/1979 | US4177479 Electrical circuit with a high-frequency thyristor fired by blocking leakage current |
11/27/1979 | US4176310 Device comprising a transformer for step-wise varying voltages |
11/20/1979 | US4175249 Self-reconfiguring solar cell system |
11/20/1979 | US4175246 Energizing circuit for magnetron using dual transformer secondaries |
11/13/1979 | US4174535 Integrated current supply circuit |
11/13/1979 | US4174497 Circuit and method for controlling reactive load currents of a three-phase system |
11/13/1979 | CA1066368A1 Induction heating apparatus using a saturable reactor for power control purposes |
11/06/1979 | US4173780 Method and apparatus for controlling the real and reactive power behavior of a high voltage D.C. transmission (HDT) system |
11/06/1979 | US4173779 Single-pole commutation circuit |
10/30/1979 | US4173040 DC-to-AC voltage converter |
10/30/1979 | US4173039 Current based power supply |
10/23/1979 | US4172279 Integrated current supply circuits |
10/23/1979 | US4172278 DC to AC inverter |
10/23/1979 | US4172269 Circuit for overshoot supression in X-ray generators |
10/16/1979 | US4171517 Apparatus for synchronization control of a plurality of inverters |
10/16/1979 | CA1064584A1 Pulse generator using lc circuit to energize a coil |
10/09/1979 | US4170739 Apparatus and method for supplying direct current with superimposed alternating current |
10/03/1979 | EP0004293A2 Array of disc-type thyristors in thermal and electrical contact on cooling bodies |
10/02/1979 | US4170037 Lock-out logic circuit for inverter protection |
09/25/1979 | US4169282 Multiphase full-wave rectifier assembly |
09/25/1979 | US4169259 Frequency sensitive switching circuit |
09/25/1979 | CA1063180A1 Power supply for magnetron |
09/11/1979 | US4167777 Switching-mode regulator |
09/11/1979 | US4167776 Inverter circuit |
09/11/1979 | US4167775 Controller for synthesizer circuit for generating three-tier waveforms |
09/11/1979 | US4167707 Symmetrical digital phase shifter |
09/11/1979 | US4167698 Monitoring the conduction cutoff phase angles in rectifiers |
09/11/1979 | US4167693 Control arrangement for a brushless D-C motor |
09/11/1979 | US4167680 Emergency standby system for automatic transfer from utility power to a battery powered system |
09/11/1979 | CA1062331A1 Inverter having forced turn-off |
09/11/1979 | CA1062330A1 Power converter employing non-saturating interphase transformer |
09/11/1979 | CA1062327A1 Static convertor |
09/04/1979 | US4167035 Voltage multipliers |
09/04/1979 | CA1061863A1 Rectifying circuit |
08/28/1979 | US4166288 Integrated current supply |
08/28/1979 | US4166247 Control systems for pulse width control type inverter |
08/28/1979 | US4165801 Static Leonard system |
08/28/1979 | US4165749 Medical device for electroshock therapy |
08/28/1979 | CA1061406A1 Frequency converter, commutation short circuit protection |
08/07/1979 | US4164016 Current sensing system |
08/07/1979 | US4164015 Control circuit for power converter |
08/07/1979 | US4164013 Six-pulse rectifier circuit |
08/07/1979 | US4163906 Time division switching regulator |
08/07/1979 | CA1060095A1 Rectifier with switches of asymmetric voltage breakdown strengths |
08/07/1979 | CA1060094A1 Method for operating a frequency converter, starting circuit |
07/31/1979 | US4163177 Oscillation generator providing oscillations of varying amplitude |
07/24/1979 | US4162525 Power system having an inductive charge effect limiting inverter |
07/24/1979 | US4162523 Static circuit arrangement for production of 3-phase current of variable frequency and output power |
07/24/1979 | US4162441 Apparatus for control of DC power by electromagnetic induction |
07/24/1979 | US4161980 Cooling capsule for thyristors |
07/17/1979 | US4161775 Rectifier unit for provision in an alternator |
07/17/1979 | US4161773 Push-pull inverter including starter circuit |
07/17/1979 | US4161771 Inverter ripple regulator |
07/17/1979 | US4161213 Cooling capsule for a thyristor |
07/17/1979 | CA1058702A1 Transistor inverter |
07/12/1979 | WO1979000428A1 Supplier of direct current with superimposed alternating current |
07/10/1979 | US4161022 Controllable rectifier circuit for a power supply |
07/10/1979 | US4160938 Motor drive apparatus |
06/26/1979 | US4159515 Inverter control system |
06/26/1979 | US4159514 Signal loss detector for three phase circuit |
06/19/1979 | US4158882 Full-wave rectifier circuit |
06/13/1979 | EP0002296A1 DC-voltage supply |
06/12/1979 | US4158224 Inverter apparatus |
06/12/1979 | CA1056451A1 Converter control apparatus for ac-dc parallel power transmission system |
06/12/1979 | CA1056450A1 Commutation circuit for low kva static ac motor drive |
06/05/1979 | US4157579 Pulse generation employing parallel resonant LC circuit for energizing a coil with square wave |
06/05/1979 | US4157578 Dv/dt protection for solid state switches |
06/05/1979 | CA1056010A1 Reverse voltage surge protection for high-voltage thyristors |