Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11962292 | Gate driving device | Wen-Chin Wu | 2024-04-16 |
| 8412486 | Power converter remaining life estimation | Hon Man Pang | 2013-04-02 |
| 7567040 | High efficiency driver for color light emitting diodes (LED) | Franki Ngai Kit Poon, Joe Chui Pong Liu | 2009-07-28 |
| 7178971 | High efficiency driver for color light emitting diodes (LED) | Franki Ngai Kit Poon, Joe Chui Pong Liu | 2007-02-20 |
| 7122972 | Dimmable ballast with resistive input and low electromagnetic interference | Franki Ngai Kit Poon, Joe Liu | 2006-10-17 |
| 6879500 | Apparatus for noise current reduction in power converters | Chui-Pong Joe Liu, Ngai Kit Franki Poon | 2005-04-12 |
| 6815937 | Stepping inductor for fast transient response of switching converter | Franki Ngai Kit Poon, Joe Chui Pong Liu | 2004-11-09 |
| 6812679 | High efficiency AC-DC converter with power factor corrector | Joe Chui Pong Liu, Franki Ngai Kit Poon | 2004-11-02 |
| 6697266 | Method and system for providing a DC voltage with low ripple by overlaying a plurality of AC signals | Franki Ngai Kit Poon, Joe Chui Pong Liu | 2004-02-24 |
| 6597587 | Current driven synchronous rectifier with energy recovery using hysterisis driver | Frankie Ngai Kit Poon, Joe Chui Pong Liu | 2003-07-22 |
| 6580259 | High efficiency AC-DC converter with power factor corrector | Joe Chui Pong Liu, Franki Ngai Kit Poon | 2003-06-17 |
| 6490181 | Apparatus for reducing common mode noise current in power converters | Chui-Pong Joe Liu, Ngai Kit Franki Poon | 2002-12-03 |
| 6396716 | Apparatus for improving stability and dynamic response of half-bridge converter | Chui-Pong Joe Liu, Ngai Kit Franki Poon | 2002-05-28 |
| 6347045 | Noise canceling apparatus for a power converter | Ngai Kit Franki Poon, Joe Chui Pong Liu | 2002-02-12 |
| 6188209 | Stepping inductor for fast transient response of switching converter | Franki Ngai Kit Poon, Joe Chui Pong Liu | 2001-02-13 |
| 6134131 | Current driven synchronous rectifier with energy recovery | Ngai Kit Franki Poon, Chui-Pong Joe Liu, Xue Fei Xie | 2000-10-17 |
| 5774346 | Family of zero voltage switching DC to DC converters with coupled output inductor | Franki Ngai Kit Poon | 1998-06-30 |
| 5748457 | Family of zero voltage switching DC to DC converters | Franki Ngai Kit Poon | 1998-05-05 |