Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559685 | Voltage clamped parallel resonant converter with controllable duty cycle | Robert S. Zedwick | 1996-09-24 |
| 5412557 | Unipolar series resonant converter | — | 1995-05-02 |
| 5270914 | Series resonant converter control system and method | J. Ben Klaassens | 1993-12-14 |
| 5239251 | Brushless doubly-fed motor control system | — | 1993-08-24 |
| 5028804 | Brushless doubly-fed generator control system | — | 1991-07-02 |
| 5010471 | Three-phase AC-to-AC series resonant power converter with reduced number of switches | J. Ben Klaassens, Freddy de Beer | 1991-04-23 |
| 4994684 | Doubly fed generator variable speed generation control system | Gerald Alexander | 1991-02-19 |
| 4982147 | Power factor motor control system | — | 1991-01-01 |