Inventor
CHU YI-SHAN
TW20 patents
⚠️ This page may combine multiple inventors who share the name “CHU YI-SHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEADTREND TECH CORP
13 patentsUS7193453B2Mar 20, 2007
Dual loop voltage regulation circuit of power supply chip
LEADTREND TECH CORP140 citations96
US7772782B2Aug 10, 2010
Light emitting diode (LED) driving device
LEADTREND TECH CORP21 citations89
US7330361B1Feb 12, 2008
Capacitor charging module
LEADTREND TECH CORP10 citations83
US7821750B2Oct 26, 2010
Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuit
LEADTREND TECH CORP6 citations62
US7446506B2Nov 4, 2008
Apparatus for preventing capacitor charger from overcharging and method thereof
LEADTREND TECH CORP2 citations62
US7573730B2Aug 11, 2009
Charging device with boundary mode control
LEADTREND TECH CORP6 citations61
US7511974B2Mar 31, 2009
High voltage charging circuit
LEADTREND TECH CORP2 citations61
US7154801B1Dec 26, 2006
Protection circuit of a memory module and the method thereof
LEADTREND TECH CORP5 citations61
US6982882B2Jan 3, 2006
High voltage charging circuit for charging a high voltage capacitor
LEADTREND TECH CORP4 citations61
US7961481B2Jun 14, 2011
Pulse width modulation control circuit applied to charge output capacitor
LEADTREND TECH CORP4 citations60
US9520791B2Dec 13, 2016
Power controller with multi-function pin and power supply using the same
LEADTREND TECH CORP2 citations59
US7378824B2May 27, 2008
Voltage converter capable of avoiding voltage drop occurring in input signal
LEADTREND TECH CORP6 citations59
US8362750B2Jan 29, 2013
Apparatus for preventing capacitor charger from overcharging and method thereof
LEADTREND TECH CORP1 citations51