Inventor
GU WEN-JIAN
US9 patents
Patents
9 patentsUS5598326AJan 28, 1997
High frequency AC/AC converter with PF correction
PHILIPS ELECTRONICS NA176 citations98
US5510974AApr 23, 1996
High frequency push-pull converter with input power factor correction
PHILIPS ELECTRONICS NA153 citations98
US6011360AJan 4, 2000
High efficiency dimmable cold cathode fluorescent lamp ballast
PHILIPS ELECTRONICS NA115 citations97
US5907223AMay 25, 1999
Two-frequency electronic ballast system having an isolated PFC converter
PHILIPS ELECTRONICS NA127 citations97
US5808879ASep 15, 1998
Half-bridge zero-voltage-switched PWM flyback DC/DC converter
PHILIPS ELECTRONICS NA133 citations97
US5371440ADec 6, 1994
High frequency miniature electronic ballast with low RFI
PHILIPS ELECTRONICS NA55 citations96
US5627717AMay 6, 1997
Electronic processing unit, and circuit breaker including such a unit
PHILIPS ELECTRONICS NA62 citations93
US5811965ASep 22, 1998
DC and AC current sensor having a minor-loop operated current transformer
PHILIPS ELECTRONICS NA51 citations92
US5552979ASep 3, 1996
Isolated current sensor for DC to high frequency applications
PHILIPS ELECTRONICS NA61 citations92