Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885675 | Transformer isolated AC to DC power conditioner with resistive input current | James A. Smith | 1989-12-05 |
| 4855888 | Constant frequency resonant power converter with zero voltage switching | Ned Mohan, John G. Hayes | 1989-08-08 |