Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9863208 | Isolation barrier | David Glen Martin, Davidson Harman, Cameron Hill Radtke, William Luke McElligott | 2018-01-09 |
| 9708879 | Isolation barrier | Daniel O'Brien | 2017-07-18 |
| 9011566 | Filter cartridge apparatus | Indal Looknauth, Gord Heyting | 2015-04-21 |
| 7321210 | Sensorless brushless direct current motor drive using pulse width modulation speed control at motor frequency | — | 2008-01-22 |
| 6627961 | Hybrid IGBT and MOSFET for zero current at zero voltage | Richard Francis, Ranadeep Dutta, Chiu Ng | 2003-09-30 |
| 6002213 | MOS gate driver circuit with analog input and variable dead time band | — | 1999-12-14 |
| 5932974 | Ballast circuit with lamp removal protection and soft starting | — | 1999-08-03 |
| 5805433 | Small offline power supply | — | 1998-09-08 |
| 5796215 | Soft start circuit for self-oscillating drivers | John Parry | 1998-08-18 |
| 5757141 | MOSgate driver for ballast circuits | — | 1998-05-26 |
| 5747943 | MOS gate driver integrated circuit for ballast circuits | Talbott M. Houk | 1998-05-05 |
| 5612597 | Oscillating driver circuit with power factor correction, electronic lamp ballast employing same and driver method | — | 1997-03-18 |
| 5559394 | MOS gate driver for ballast circuits | — | 1996-09-24 |
| 5545955 | MOS gate driver for ballast circuits | — | 1996-08-13 |
| 5387847 | Passive power factor ballast circuit for the gas discharge lamps | — | 1995-02-07 |
| 4775800 | Power-supply apparatus | — | 1988-10-04 |
| 4757435 | Static-controlled current-source AC/DC power converter and DC/AC power converter, and protection system embodying the same | Laszlo Gyugyi | 1988-07-12 |
| 4750098 | Unrestricted frequency changer with current source output | Theodore M. Heinrich, Andress Kernick | 1988-06-07 |
| 4603551 | Wave power converter | — | 1986-08-05 |
| 4511815 | Transformer-isolated power MOSFET driver circuit | — | 1985-04-16 |
| 4472641 | Power supply apparatus | David E. Dickey | 1984-09-18 |
| 4463400 | DC Static switch with phase commutation | Derek A. Paice | 1984-07-31 |
| 4348631 | Static VAR generator | Laszlo Gyugyi | 1982-09-07 |
| 4234843 | Static VAR generator with discrete capacitive current levels | Laszlo Gyugyi | 1980-11-18 |