Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12289041 | System and method for determining mains voltage of a power supply | Yuhong Fang, Ashwin Premraj | 2025-04-29 |
| 12081123 | System and method for detecting a DC bus voltage while minimizing power loss in standby mode | Shaohua Peng, Yuhong Fang | 2024-09-03 |
| 12016101 | Power supply configuration across isolation barrier | Yuhong Fang | 2024-06-18 |
| 11895746 | Class 2 circuit protection | Yuhong Fang, Ashwin Premraj | 2024-02-06 |
| 11677235 | Avalanche triggered overvoltage protection | — | 2023-06-13 |
| 11638341 | Isolated converter and led driver using the isolated converter | Ming-Chien Li, Yuhong Fang, Johannes Petrus Wernars, Liang Hong, Ashwin Premraj | 2023-04-25 |
| 10548189 | Control of isolated auxiliary power supply and DALI supply for sensor-ready LED drivers | Sanbao Zheng, Johannes Adrianus Cornelis Misdom | 2020-01-28 |
| 9854651 | Programmable lighting device and method and system for programming lighting device | Bing-Yuan Lai, Raman Nair Harish Gopala Pillai, Alan James Marble | 2017-12-26 |
| 9565744 | Programmable lighting device and method and system for programming lighting device | Bing-Yuan Lai, Raman Nair Harish Gopala Pillai, Alan James Marble | 2017-02-07 |
| 9119268 | Driver with isolation and surge signal protection | Bing-Yuan Lai, Yunfeng Li | 2015-08-25 |
| 8853967 | Lamp driver having a shutdown interface circuit | Kurt S. Wilcox, Pierre Deschenes, Matthew K. Murphy | 2014-10-07 |
| 8629619 | Method and apparatus for controlling dimming levels of LEDs | Richard Greischar, Ameya Dilip Shrotriya | 2014-01-14 |
| 8400071 | LED lamp power management system and method | James M. Gaines, Josephus Adrianus Maria Van Erp | 2013-03-19 |
| 8368315 | LED lamp color control system and method | James M. Gaines, Josephus Adrianus Maria Van Erp | 2013-02-05 |
| 7802902 | LED lighting fixtures | Timothy B. Moss, Eric J. Kille, Mubasher Ahmad, James M. Gaines | 2010-09-28 |
| 7656670 | Electronic blast with remote capacitor placement | Seymour Perkins, III, Jeffrey D. Lord, Subramanian Muthu | 2010-02-02 |
| 7635957 | LED temperature-dependent power supply system and method | Ajay Tripathi | 2009-12-22 |
| 7262559 | LEDS driver | Ajay Tripathi, Young-Kee Min, Raghuram Narasimhan, Rohit Khetarpal | 2007-08-28 |
| 6853150 | Light emitting diode driver | Robert Erhardt | 2005-02-08 |
| 6734639 | Sample and hold method to achieve square-wave PWM current source for light emitting diode arrays | Chin Chang | 2004-05-11 |
| 6586890 | LED driver circuit with PWM output | Young-Kee Min, Bertrand Johan Edward Hontele | 2003-07-01 |
| 6577512 | Power supply for LEDs | Ajay Tripathi | 2003-06-10 |