Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12137502 | Linear driving module | Che-Min Kung, Ching-Ran Lee, Shi-Wei Huang | 2024-11-05 |
| 12107503 | Multi-stage buck converter | — | 2024-10-01 |
| 11632840 | LED driving circuit and method | Yu-Jen Chen | 2023-04-18 |
| 10986715 | LED driving circuit and method | Ching-Ran Lee, Chi-Chun Huang, Che-Min Kung, Yu-Jen Chen | 2021-04-20 |
| 9549444 | Dimming system and operating method thereof | Ching-Ran Lee, Tzu-Hung Yang | 2017-01-17 |
| 9343956 | Passive power factor correction circuit, electronic device applying the same and operation methods thereof | Ching-Ran Lee, Po-Yen Chen, Ching-Tsai Pan | 2016-05-17 |
| 9257904 | Direct current conversion circuit | Ching-Ran Lee, Po-Yen Chen, Ching-Tsai Pan | 2016-02-09 |
| 9190904 | DC conversion circuit | Ching-Ran Lee, Po-Yen Chen, Ching-Tsai Pan | 2015-11-17 |
| 9048750 | Active buck power factor correction device | Ching-Ran Lee, Po-Yen Chen, Ching-Tsai Pan | 2015-06-02 |
| 8901900 | Buck power factor correction system | Ching-Ran Lee | 2014-12-02 |
| 8878459 | Method for identifying rated power of HID lamp | Ching-Ran Lee | 2014-11-04 |
| 8111009 | Light adjustment circuit for alternating-current light emitting diodes (AC-LED's) | Bing-Chwen Yang, Hwei-Shung Chong, Chung-Yue Chen, Yie-Tone Chen, Yao-Te Huang +1 more | 2012-02-07 |