Inventor · disambiguated record
P. John Dhyanchand
Also filed as: DHYANCHAND P JOHN · DHYANCHAND P JOHN J
43 granted patents·2,350 citations·filing 1976–1994
99Inventor score
Top patents by PatentIndex Score
43 records- 0198US5182535ASumming transformer core for star-delta inverter having a separate secondary winding for each primary windingDHYANCHAND P JOHN·Filed 1989·Granted Jan 26, 1993·140 cites·12 claims
- 0298US5015941APower conversion system with bi-directional power converter having prime mover start capabilitySUNDSTRAND CORP·Filed 1989·Granted May 14, 1991·126 cites·5 claims
- 0398US5013929APower conversion system having prime mover start capabilitySUNDSTRAND CORP·Filed 1989·Granted May 7, 1991·125 cites·9 claims
- 0497US4947100APower conversion system with stepped waveform inverter having prime mover start capabilitySUNDSTRAND CORP·Filed 1989·Granted Aug 7, 1990·98 cites·8 claims
- 0597US4835448ABrushless DC motor torque controlSUNDSTRAND CORP·Filed 1987·Granted May 30, 1989·116 cites·17 claims
- 0696US5281905AInduction machine based hybrid aircraft engine starting/generating power systemSUNDSTRAND CORP·Filed 1989·Granted Jan 25, 1994·85 cites·20 claims
- 0796US4937468AIsolation circuit for pulse waveformsSUNDSTRAND CORP·Filed 1989·Granted Jun 26, 1990·82 cites·6 claims
- 0895US5177460ASumming transformer for star-delta inverter having a single secondary winding for each group of primary windingsDHYANCHAND P JOHN·Filed 1990·Granted Jan 5, 1993·151 cites·14 claims
- 0995US4939441AExcitation system for a brushless generator having separate AC and DC exciter field windingsSUNDSTRAND CORP·Filed 1989·Granted Jul 3, 1990·77 cites·10 claims
- 1094US5600548ADC content control for an inverterSUNDSTRAND CORP·Filed 1994·Granted Feb 4, 1997·117 cites·15 claims
- 1194US5012177APower conversion system using a switched reluctance motor/generatorSUNDSTRAND CORP·Filed 1989·Granted Apr 30, 1991·82 cites·11 claims
- 1294US4044296AElectronic voltage regulator for three-phase generatorsSUNDSTRAND CORP·Filed 1976·Granted Aug 23, 1977·53 cites·25 claims
- 1392US5055700ABrushless generator having prime mover start capabilityDHYANCHAND P JOHN·Filed 1989·Granted Oct 8, 1991·63 cites·10 claims
- 1491US4694383AController for a resonant converterSUNDSTRAND CORP·Filed 1986·Granted Sep 15, 1987·55 cites·18 claims
- 1590US5097241ACooling apparatus for windingsSUNDSTRAND CORP·Filed 1989·Granted Mar 17, 1992·79 cites·8 claims
- 1687US4670828ABi-directional switch for neutral point clamped PWM inverterSUNDSTRAND CORP·Filed 1986·Granted Jun 2, 1987·59 cites·23 claims
- 1786US4968926APower conversion system with stepped waveform DC to AC converter having prime mover start capabilitySUNDSTRAND CORP·Filed 1989·Granted Nov 6, 1990·55 cites·10 claims
- 1886US4635177AControl for a neutral point clamped PWM inverterSUNDSTRAND CORP·Filed 1984·Granted Jan 6, 1987·38 cites·16 claims
- 1985US5057808ATransformer with voltage balancing tertiary windingSUNDSTRAND CORP·Filed 1989·Granted Oct 15, 1991·48 cites·9 claims
- 2085US4695933AMultiphase DC-DC series-resonant converterSUNDSTRAND CORP·Filed 1985·Granted Sep 22, 1987·87 cites·10 claims
- 2184US4695776APower converter for an electrically-compensated constant speed driveSUNSTRAND CORP·Filed 1986·Granted Sep 22, 1987·58 cites·31 claims
- 2279US5040105AStepped-waveform inverter with eight subinvertersSUNDSTRAND CORP·Filed 1989·Granted Aug 13, 1991·39 cites·8 claims
- 2376US5045991AUnity power factor AC/DC converterSUNDSTRAND CORP·Filed 1989·Granted Sep 3, 1991·40 cites·9 claims
- 2476US5041957AStepped-waveform inverter with six subinvertersSUNDSTRAND CORP·Filed 1989·Granted Aug 20, 1991·37 cites·8 claims
- 2575US4841202ASpeed-limited electrically compensated constant speed driveSUNDSTRAND CORP·Filed 1987·Granted Jun 20, 1989·29 cites·8 claims
- 2673US5355296ASwitching converter and summing transformer for use thereinSUNDSTRAND CORP·Filed 1992·Granted Oct 11, 1994·43 cites·15 claims
- 2769US5008797APower converter utilizing line replaceable unitsSUNDSTRAND CORP·Filed 1989·Granted Apr 16, 1991·28 cites·13 claims
- 2868US5282125APower generation system with soft-start circuitSUNDSTRAND CORP·Filed 1992·Granted Jan 25, 1994·36 cites·19 claims
- 2967US5317299AElectromagnetic transformerSUNDSTRAND CORP·Filed 1991·Granted May 31, 1994·24 cites·21 claims
- 3066US5031086AHybrid power systemSUNDSTRAND CORP·Filed 1989·Granted Jul 9, 1991·25 cites·3 claims
- 3166US4947055ABase drive circuit for Darlington-connected transistorsSUNDSTRAND CORP·Filed 1989·Granted Aug 7, 1990·15 cites·11 claims
- 3266US4692671AElectrically-compensated constant speed driveSUNDSTRAND CORP·Filed 1986·Granted Sep 8, 1987·23 cites·24 claims
- 3365US4969081AInverter switch current sensor with shoot-through current limitingSUNDSTRAND CORP·Filed 1989·Granted Nov 6, 1990·22 cites·2 claims
- 3464US5666278AHigh voltage inverter utilizing low voltage power switchesSUNDSTRAND CORP·Filed 1994·Granted Sep 9, 1997·29 cites·13 claims
- 3564US5559686AStepped waveform inverter controlSUNDSTRAND CORP·Filed 1994·Granted Sep 24, 1996·32 cites·10 claims
- 3663US4725741ADrive circuit for fast switching of Darlington-connected transistorsSUNDSTRAND CORP·Filed 1986·Granted Feb 16, 1988·14 cites·25 claims
- 3757US5657214AStepped waveform PWM inverterSUNDSTRAND CORP·Filed 1991·Granted Aug 12, 1997·23 cites·15 claims
- 3856US5041958AStepped-waveform inverter with four subinvertersSUNDSTRAND CORP·Filed 1989·Granted Aug 20, 1991·16 cites·6 claims
- 3956US5027265ARegulator for stepped-waveform inverterSUNDSTRAND CORP·Filed 1989·Granted Jun 25, 1991·17 cites·16 claims
- 4052US5225973ARegulation circuit for a stepped-waveform inverterPATEL SUNIL·Filed 1990·Granted Jul 6, 1993·23 cites·16 claims
- 4151US4651267AProportional base drive circuit for transistorized bridge inverterSUNDSTRAND CORP·Filed 1985·Granted Mar 17, 1987·14 cites·15 claims
- 4250US5301098AFeedforward inverter phase controlSUNDSTRAND CORP·Filed 1992·Granted Apr 5, 1994·18 cites·20 claims
- 4339US5239454AStepped-waveform inverter utilizing main and auxiliary subinvertersSUNDSTRAND CORP·Filed 1991·Granted Aug 24, 1993·9 cites·6 claims
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