Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9306461 | LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitor | Po Wah Chang, Chik Wai (David) Ng, Wai Kit (Victor) So, Shaobin WU, Kwok Kuen (David) Kwong | 2016-04-05 |
| 8780590 | Output current estimation for an isolated flyback converter with variable switching frequency control and duty cycle adjustment for both PWM and PFM modes | Wai Kit (Victor) So, Chik Wai (David) Ng, Po Wah Chang | 2014-07-15 |
| 8300431 | Constant-current control module using inverter filter multiplier for off-line current-mode primary-side sense isolated flyback converter | Chik Wai (David) Ng, Po Wah Chang, Wai Kit (Victor) So, Kwok Kuen (David) Kwong | 2012-10-30 |
| 8188798 | Programmable electro-magnetic-interference (EMI) reduction with enhanced noise immunity and process tolerance | Chi Tak (Gerry) Leung, Chik Wai (David) Ng, Wai Kit (Victor) So, Po Wah Chang, Wing Cheong Mak +1 more | 2012-05-29 |
| 8072721 | ESD protection using a capacitivly-coupled clamp for protecting low-voltage core transistors from high-voltage outputs | Kwok Kuen (David) Kwong, Chik Wai (David) Ng, Wai Kit (Victor) So | 2011-12-06 |