Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12347789 | Air-core transformer package with ferrite electro-magnetic interference (EMI) shielding of integrated-circuit (IC) chip | Kwun Yuan (Godwin) Ho, Ki Hin (Gary) Choi, Tin Ho (Andy) Wu, Wai Kit (Victor) So | 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 | Kwun Yuan (Godwin) Ho, Ki Hin (Gary) Choi, Tin Ho (Andy) Wu, Wai Kit (Victor) So | 2024-05-21 |
| 11258364 | Flexible array of DC-DC converters reconfigurable using a shared serial bus | Kit Wing S. Lee, Sheung Wai Fung, Ka Lok Ng | 2022-02-22 |
| 11206014 | Digital frequency dithering for switched-mode power supplies (SMPS) using triangular, asymmetric cubic, or random cubic spread spectrum oscillators | Wai Kit (Victor) So, Yuanzhe (Kevin) Xu, Ka Lok Ng, Tin Ho (Andy) Wu | 2021-12-21 |
| 9385542 | Serial multi-battery charger with independent simultaneous charge and discharge | Po Wah Chang, Chi Chiu Tsang, Yuanzhe (Kevin) Xu, Wai Kei (Timothy) OR, Kwok Kuen (David) Kwong | 2016-07-05 |
| 9306461 | LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitor | Po Wah Chang, Hing Kit Kwan, 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, Hing Kit Kwan, Po Wah Chang | 2014-07-15 |
| 8643337 | Single-power-transistor battery-charging circuit using voltage-boosted clock | Kwok Kuen (David) Kwong, Yat To Wong, Ho Ming (Karen) Wan | 2014-02-04 |
| 8300431 | Constant-current control module using inverter filter multiplier for off-line current-mode primary-side sense isolated flyback converter | Hing Kit Kwan, 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, Hing Kit Kwan, 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, Wai Kit (Victor) So, Hing Kit Kwan | 2011-12-06 |
| 7999512 | Single-power-transistor battery-charging circuit using voltage-boosted clock | Kwok Kuen (David) Kwong, Yat To Wong, Ho Ming (Karen) Wan | 2011-08-16 |
| 7948224 | Feedback controller having multiple feedback paths | Yat To Wong, David Kwong | 2011-05-24 |
| 7795976 | Slew-rate-enhanced error amp with adaptive transconductance and single dominant pole shared by main and auxiliary amps | Yat To Wong, Ho Ming (Karen) Wan, Kam Chuen Wan, Kwok Kuen (David) Kwong | 2010-09-14 |
| 7705662 | Low voltage high-output-driving CMOS voltage reference with temperature compensation | Kwok Kuen (David) Kwong | 2010-04-27 |
| 7705685 | Low-voltage oscillator with capacitor-ratio selectable duty cycle | Yat To Wong, Ho Ming (Karen) Wan, Kwok Kuen (David) Kwong | 2010-04-27 |
| 7538597 | Fuse cell and method for programming the same | David Kwong, Ho Ming (Karen) Wan, Kam Chuen Wan | 2009-05-26 |