Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12347789 | Air-core transformer package with ferrite electro-magnetic interference (EMI) shielding of integrated-circuit (IC) chip | Chik Wai (David) Ng, Kwun Yuan (Godwin) Ho, Ki Hin (Gary) Choi, Tin Ho (Andy) Wu | 2025-07-01 |
| 11990422 | Ferrite electro-magnetic interference (EMI) shield between an integrated-circuit (IC) chip and an air-core inductor all inside a hybrid lead-frame package | Chik Wai (David) Ng, Kwun Yuan (Godwin) Ho, Ki Hin (Gary) Choi, Tin Ho (Andy) Wu | 2024-05-21 |
| 11206014 | Digital frequency dithering for switched-mode power supplies (SMPS) using triangular, asymmetric cubic, or random cubic spread spectrum oscillators | Chik Wai (David) Ng, Yuanzhe (Kevin) Xu, Ka Lok Ng, Tin Ho (Andy) Wu | 2021-12-21 |
| 9306461 | LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitor | Po Wah Chang, Chik Wai (David) Ng, Hing Kit Kwan, 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 | Hing Kit Kwan, 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, Hing Kit Kwan, Po Wah Chang, 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, Hing Kit Kwan, 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, Hing Kit Kwan | 2011-12-06 |