P

Inventor

DHYANCHAND P JOHN

US42 patents
⚠️ This page may combine multiple inventors who share the name “DHYANCHAND P JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUNDSTRAND CORP

37 patents
US5600548AFeb 4, 1997

DC content control for an inverter

SUNDSTRAND CORP117 citations98
US5015941AMay 14, 1991

Power conversion system with bi-directional power converter having prime mover start capability

SUNDSTRAND CORP126 citations98
US5013929AMay 7, 1991

Power conversion system having prime mover start capability

SUNDSTRAND CORP125 citations98
US5281905AJan 25, 1994

Induction machine based hybrid aircraft engine starting/generating power system

SUNDSTRAND CORP85 citations96
US5097241AMar 17, 1992

Cooling apparatus for windings

SUNDSTRAND CORP79 citations96
US5012177AApr 30, 1991

Power conversion system using a switched reluctance motor/generator

SUNDSTRAND CORP82 citations96
US4947100AAug 7, 1990

Power conversion system with stepped waveform inverter having prime mover start capability

SUNDSTRAND CORP98 citations96
US4939441AJul 3, 1990

Excitation system for a brushless generator having separate AC and DC exciter field windings

SUNDSTRAND CORP77 citations96
US4937468AJun 26, 1990

Isolation circuit for pulse waveforms

SUNDSTRAND CORP82 citations96
US4835448AMay 30, 1989

Brushless DC motor torque control

SUNDSTRAND CORP116 citations96
US4695933ASep 22, 1987

Multiphase DC-DC series-resonant converter

SUNDSTRAND CORP87 citations96
US4694383ASep 15, 1987

Controller for a resonant converter

SUNDSTRAND CORP55 citations96
US4670828AJun 2, 1987

Bi-directional switch for neutral point clamped PWM inverter

SUNDSTRAND CORP59 citations95
US5057808AOct 15, 1991

Transformer with voltage balancing tertiary winding

SUNDSTRAND CORP48 citations93
US4968926ANov 6, 1990

Power conversion system with stepped waveform DC to AC converter having prime mover start capability

SUNDSTRAND CORP55 citations93
US5666278ASep 9, 1997

High voltage inverter utilizing low voltage power switches

SUNDSTRAND CORP29 citations92
US5657214AAug 12, 1997

Stepped waveform PWM inverter

SUNDSTRAND CORP23 citations92
US5355296AOct 11, 1994

Switching converter and summing transformer for use therein

SUNDSTRAND CORP43 citations92
US5282125AJan 25, 1994

Power generation system with soft-start circuit

SUNDSTRAND CORP36 citations92
US5040105AAug 13, 1991

Stepped-waveform inverter with eight subinverters

SUNDSTRAND CORP39 citations92
US5031086AJul 9, 1991

Hybrid power system

SUNDSTRAND CORP25 citations92
US4841202AJun 20, 1989

Speed-limited electrically compensated constant speed drive

SUNDSTRAND CORP29 citations92
US4635177AJan 6, 1987

Control for a neutral point clamped PWM inverter

SUNDSTRAND CORP38 citations92
US5559686ASep 24, 1996

Stepped waveform inverter control

SUNDSTRAND CORP32 citations90
US5008797AApr 16, 1991

Power converter utilizing line replaceable units

SUNDSTRAND CORP28 citations90
US5041957AAug 20, 1991

Stepped-waveform inverter with six subinverters

SUNDSTRAND CORP37 citations89
US5317299AMay 31, 1994

Electromagnetic transformer

SUNDSTRAND CORP24 citations87
US5045991ASep 3, 1991

Unity power factor AC/DC converter

SUNDSTRAND CORP40 citations87
US4969081ANov 6, 1990

Inverter switch current sensor with shoot-through current limiting

SUNDSTRAND CORP22 citations82
US4692671ASep 8, 1987

Electrically-compensated constant speed drive

SUNDSTRAND CORP23 citations80
US5301098AApr 5, 1994

Feedforward inverter phase control

SUNDSTRAND CORP18 citations74
US5239454AAug 24, 1993

Stepped-waveform inverter utilizing main and auxiliary subinverters

SUNDSTRAND CORP9 citations74
US4947055AAug 7, 1990

Base drive circuit for Darlington-connected transistors

SUNDSTRAND CORP15 citations74
US4725741AFeb 16, 1988

Drive circuit for fast switching of Darlington-connected transistors

SUNDSTRAND CORP14 citations74
US5041958AAug 20, 1991

Stepped-waveform inverter with four subinverters

SUNDSTRAND CORP16 citations73
US5027265AJun 25, 1991

Regulator for stepped-waveform inverter

SUNDSTRAND CORP17 citations73
US4651267AMar 17, 1987

Proportional base drive circuit for transistorized bridge inverter

SUNDSTRAND CORP14 citations69

DHYANCHAND P JOHN

3 patents

SUNSTRAND CORP

1 patent

PATEL SUNIL

1 patent