Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5452198 | Apparatus and method for A/C voltage sensing | — | 1995-09-19 |
| 5212629 | Voltage and harmonic control of a multi-pole inverter | — | 1993-05-18 |
| 5138544 | Harmonically modified twelve-pole inverter | — | 1992-08-11 |
| 4941075 | Timing correction for square wave inverter power poles | David A. Fox | 1990-07-10 |
| 4933622 | Circuit and method for discharging DC filter capacitors | David A. Fox | 1990-06-12 |
| 4728817 | Power transistor drive circuit | Joseph M. Urish | 1988-03-01 |
| 4504899 | Inverter firing control with error compensation | — | 1985-03-12 |
| 4502105 | Inverter firing control with pulse averaging error compensation | — | 1985-02-26 |
| 4443842 | Inverter firing control with compensation for variable switching delay | — | 1984-04-17 |
| 4366521 | Sequence filters for determining the symmetrical components of multiphase AC power systems | — | 1982-12-28 |
| 4307444 | Method and apparatus for stabilized integral control of static power frequency changers | Eric J. Stacey | 1981-12-22 |
| 4303972 | Controlling the circulating current in naturally commutated static power converters | Eric J. Stacey, Donal E. Baker, Charles L. Doughman | 1981-12-01 |