Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9825549 | Multi-level inverter | Seung-Cheol Choi | 2017-11-21 |
| 9812940 | Offset voltage generator and method for generating an offset voltage of three-phase inverter | Hak-Jun Lee | 2017-11-07 |
| 9806638 | Apparatus for controlling grid-connected inverter | Eun Sik CHOI | 2017-10-31 |
| 9742339 | Apparatus for controlling inverter | Seung-Cheol Choi | 2017-08-22 |
| 9742340 | Apparatus for controlling inverter | Seung-Cheol Choi | 2017-08-22 |
| 9136772 | Phase shift transformer in multi-level medium voltage inverter | — | 2015-09-15 |
| 8922151 | Regenerative medium voltage inverter | — | 2014-12-30 |
| 8829831 | Parameter estimating apparatus for permanent magnet synchronous motor driving system | — | 2014-09-09 |