Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11271423 | Circuit and method for controlling charging of emergency lighting luminaires by a switch | Siyuan Xu | 2022-03-08 |
| 11245283 | Circuit and method for controlling brightness of emergency lighting luminaires by a switch | Siyuan Xu | 2022-02-08 |
| 9641074 | Current control for DC-DC converter | Hongbo Zhang, Wei Zhang, Chao-Yu Chen, Yong Zhao | 2017-05-02 |
| 8344656 | Methods and systems for LED driver having constant output current | Xinfeng Liu, Wei Zhang, Jiusheng Zhang, Hongbo Zhang | 2013-01-01 |