Issued Patents All Time
Showing 25 most recent of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11239740 | Voltage sensing of an active clamp switching power converter circuit using auxiliary winding having an opposite polarity as a primary winding | Richard M. Myers, Liang Yan, Junjie Zheng | 2022-02-01 |
| 11050350 | Controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding | Jinho Choi, Richard M. Myers, Liang Yan, Junjie Zheng | 2021-06-29 |
| 9954444 | Pfm-pwm control for power regulators | Biing Long Shu, Jinho Choi, Hao Peng | 2018-04-24 |
| 9831772 | Resonant converter with synchronous rectifier feedback | Jinho Choi, Young Chul Ryu, Chang-yi Qian | 2017-11-28 |
| 9829513 | Line voltage detection circuit | Jinho Choi, Hao Peng, Tuyen Doan | 2017-11-28 |
| 9729079 | Method and apparatus for controlling TRIAC dimmable device | Hao Peng, Jinho Choi | 2017-08-08 |
| 9699853 | Method and apparatus for dimmable LED driver | Daniel J. Reed, Jinho Choi, Pantas Sutardja | 2017-07-04 |
| 9692316 | Bleeder method using switch node coupling capacitor for TRIAC dimming of solid state lighting | Young Chul Ryu, Chang-yi Qian | 2017-06-27 |
| 9608527 | Overshoot prevention for deep dimming startup | Jinho Choi, Hao Peng, Biing Long Shu | 2017-03-28 |
| 9559675 | Current shaping scheme in TRIAC dimmable LED driver | Hao Peng, Jinho Choi | 2017-01-31 |
| 9552005 | Systems and methods for estimating an output current of a power conversion circuit | Jianqing Lin, Shaoan Dai | 2017-01-24 |
| 9521715 | Current shaping for dimmable LED | Sehat Sutardja, Pantas Sutardja | 2016-12-13 |
| 9497807 | Dimmer circuit for electronic loads | Radu Pitigoi-Aron, Jinho Choi | 2016-11-15 |
| 9490695 | Method and apparatus for eliminating shimmering | Sai Bun Wong, Lionel Barrow, Sofjan Goenawan, Gary Chen, Jerry Su | 2016-11-08 |
| 9485816 | Method and apparatus for dimmable LED driver | Daniel J. Reed, Jinho Choi, Pantas Sutardja | 2016-11-01 |
| 9480112 | Current shaping for dimmable LED | Sehat Sutardja, Pantas Sutardja | 2016-10-25 |
| 9445475 | Buck regulator for LED lighting color mixing and/or current compensation | Sehat Sutardja, Pantas Sutardja | 2016-09-13 |
| 9425684 | Reduced noise power converter using novel shield | Jinho Choi, Tuyen Doan, Yee-Huan Ng | 2016-08-23 |
| 9392654 | Method and apparatus for controlling a power adjustment to a lighting device | Hao Peng, Jinho Choi, Tuyen Doan | 2016-07-12 |
| 9356534 | Method and apparatus for turning on a lighting device | Hao Peng | 2016-05-31 |
| 9320097 | Multi-string dimmable LED driver | Pantas Sutardja | 2016-04-19 |
| 9306387 | Current limiting circuit and method for LED driver | Sehat Sutardja | 2016-04-05 |
| 9247621 | Method and apparatus for selectively loading a dimmer circuit | Daniel J. Reed, Jinho Choi | 2016-01-26 |
| 9246395 | Circuits and methods for determining peak current | Jinho Choi, Hao Peng, Tuyen Doan | 2016-01-26 |
| 9220136 | Method and apparatus for controlling a lighting device | Pantas Sutardja, Yonghua Song | 2015-12-22 |