Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462429 | Induction motor/generator system | Donald G. Fair, Chai-Nam Ng | 2002-10-08 |
| 5495403 | Stepped-waveform power converter utilizing a summing transformer and a single inverter bridge | Chai-Nam Ng, Vietson M. Nguyen, Richard Arbanella | 1996-02-27 |
| 5084662 | Unipolar converter for variable reluctance machines | Rasappa Palaniappan, Lewis E. Unnewher | 1992-01-28 |
| 5047914 | Current controlled inverter | Vietson M. Nguyen | 1991-09-10 |
| 5036449 | Power supply and method for producing high voltage high power outputs in response to variable voltage DC inputs | Vietson M. Nguyen | 1991-07-30 |
| 4983902 | Fast current discharging switch for a variable reluctance motor drive | Rasappa Palaniappan | 1991-01-08 |
| 4973902 | Fault detector for aircraft variable speed, constant frequency power supply | Vietson M. Nguyen | 1990-11-27 |
| 4970635 | Inverter with proportional base drive controlled by a current transformer | Sampat Shekhawat | 1990-11-13 |
| 4967334 | Inverter input/output filter system | Alexander Cook, Rasappa Palaniappan, Dwight D. Schmitt | 1990-10-30 |
| 4937725 | Circuit for eliminating snubber current noise in the sense circuit of an H-bridge inverter | Rasappa Palaniappan | 1990-06-26 |
| 4935857 | Transistor conduction-angle control for a series-parallel resonant converter | Vietson M. Nguyen | 1990-06-19 |
| 4931919 | System for converting variable frequency multiple phase alternating current into constant frequency multiple phase alternating current with neutral | Vietson M. Nguyen | 1990-06-05 |
| 4891532 | Darlington connected switch having base drive with active turn-off | Sampat Shekhawat | 1990-01-02 |
| 4885486 | Darlington amplifier with high speed turnoff | Sampat Shekhawat, John Horowy | 1989-12-05 |
| 4862342 | DC to AC inverter with neutral having a resonant circuit | Sampat F. Shekhawat, Vietson M. Nguyen | 1989-08-29 |
| 4847745 | Three phase inverter power supply with balancing transformer | Sampat Shekhawat, Mahesh J. Shah, Jayant G. Vaidya | 1989-07-11 |
| 4797802 | Multiple phase rectifier with active filter for removing noise in triggering signals and digital phase shift compensator for phase shifting signal passed through | Chai-Nam Ng | 1989-01-10 |
| 4542440 | Switch current sensing with snubber current suppression in a push-pull converter | P. R. K. Chetty, Pierre Thollot | 1985-09-17 |