Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699238 | Zero voltage switching controller of resonance mode converter and electronic ballast using the same | Young-Sik Lee, Hyun-min Jo, Kyung-ha Jee | 1997-12-16 |
| 5648702 | Dimming control circuit having feedback frequency control | Kyung-ha Jee | 1997-07-15 |
| 5642065 | Zero-voltage switching circuitry, as for use in resonant inverters | Maeng-Ho Seo | 1997-06-24 |
| 5612609 | Continuous conduction mode switching power supply with improved power factor correction | — | 1997-03-18 |