Inventor
LIU KWANG-HWA
US14 patents
⚠️ This page may combine multiple inventors who share the name “LIU KWANG-HWA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LIU KWANG-HWA
4 patentsUS7259531B1Aug 21, 2007
Speed control of brushless DC motors
LIU KWANG-HWA63 citations96
US8294379B2Oct 23, 2012
Dimmable LED lamp and dimmable LED lighting apparatus
LIU KWANG-HWA86 citations94
US8247992B2Aug 21, 2012
LED driver circuit
LIU KWANG-HWA15 citations82
US7427893B2Sep 23, 2008
Circuit and method for controlling the power mode a class-D amplifier
LIU KWANG-HWA10 citations82
GREEN MARK TECHNOLOGY INC
3 patentsUS7295452B1Nov 13, 2007
Active power factor correction circuit and control method thereof
GREEN MARK TECHNOLOGY INC117 citations96
US7750616B2Jul 6, 2010
Buck converter LED driver circuit
GREEN MARK TECHNOLOGY INC53 citations93
US7443119B2Oct 28, 2008
Circuit and method for controlling the rotating speed of a BLDC motor
GREEN MARK TECHNOLOGY INC38 citations91