Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666278 | High voltage inverter utilizing low voltage power switches | Chai-Nam Ng, Vietson M. Nguyen | 1997-09-09 |
| 5657214 | Stepped waveform PWM inverter | Vietson M. Nguyen | 1997-08-12 |
| 5600548 | DC content control for an inverter | Vietson M. Nguyen | 1997-02-04 |
| 5559686 | Stepped waveform inverter control | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen, Michael Teagardin | 1996-09-24 |
| 5355296 | Switching converter and summing transformer for use therein | Ming-Jen Kuo | 1994-10-11 |
| 5317299 | Electromagnetic transformer | Jayant G. Vaidya, Rajhunath Mokadam, Richard Arbanella | 1994-05-31 |
| 5301098 | Feedforward inverter phase control | Vietson M. Nguyen, Sunil Patel, Chai-Nam Ng | 1994-04-05 |
| 5281905 | Induction machine based hybrid aircraft engine starting/generating power system | Vietson M. Nguyen | 1994-01-25 |
| 5282125 | Power generation system with soft-start circuit | Chai-Nam Ng, Sunil Patel, Vietson M. Nguyen | 1994-01-25 |
| 5239454 | Stepped-waveform inverter utilizing main and auxiliary subinverters | — | 1993-08-24 |
| 5225973 | Regulation circuit for a stepped-waveform inverter | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1993-07-06 |
| 5182535 | Summing transformer core for star-delta inverter having a separate secondary winding for each primary winding | — | 1993-01-26 |
| 5177460 | Summing transformer for star-delta inverter having a single secondary winding for each group of primary windings | Richard Arbanella, Raghunath G. Mokadam | 1993-01-05 |
| 5097241 | Cooling apparatus for windings | Edward W. Smith | 1992-03-17 |
| 5057808 | Transformer with voltage balancing tertiary winding | — | 1991-10-15 |
| 5055700 | Brushless generator having prime mover start capability | — | 1991-10-08 |
| 5045991 | Unity power factor AC/DC converter | Vietson Nbuyen | 1991-09-03 |
| 5041957 | Stepped-waveform inverter with six subinverters | Sunil Patel, Chai-Nan Ng, Vietson M. Nguyen | 1991-08-20 |
| 5041958 | Stepped-waveform inverter with four subinverters | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1991-08-20 |
| 5040105 | Stepped-waveform inverter with eight subinverters | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1991-08-13 |
| 5031086 | Hybrid power system | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1991-07-09 |
| 5027265 | Regulator for stepped-waveform inverter | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1991-06-25 |
| 5015941 | Power conversion system with bi-directional power converter having prime mover start capability | — | 1991-05-14 |
| 5013929 | Power conversion system having prime mover start capability | — | 1991-05-07 |
| 5012177 | Power conversion system using a switched reluctance motor/generator | Sunil Patel, Chai-Nam Ng, Vietson M. Nguyen | 1991-04-30 |