Inventor
HA CHANG WOO
KR21 patents
⚠️ This page may combine multiple inventors who share the name “HA CHANG WOO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRO MECH
14 patentsUS7800566B2Sep 21, 2010
Drive device of color LED backlight
SAMSUNG ELECTRO MECH14 citations84
US7646181B2Jan 12, 2010
Control circuit of DC-DC converter
SAMSUNG ELECTRO MECH7 citations73
US7417471B2Aug 26, 2008
Voltage comparator having hysteresis characteristics
SAMSUNG ELECTRO MECH8 citations73
US7746318B2Jun 29, 2010
Liquid crystal display backlight inverter
SAMSUNG ELECTRO MECH3 citations63
US7515004B2Apr 7, 2009
Voltage controlled oscillator with duty correction
SAMSUNG ELECTRO MECH2 citations63
US7471029B2Dec 30, 2008
Frequency-control-type piezo actuator driving circuit and method of driving the same
SAMSUNG ELECTRO MECH2 citations63
US7285922B2Oct 23, 2007
Driving apparatus for CCFL
SAMSUNG ELECTRO MECH4 citations63
US7741893B2Jun 22, 2010
Dual mode clock generator
SAMSUNG ELECTRO MECH4 citations62
US7271520B2Sep 18, 2007
Piezo actuator driving circuit
SAMSUNG ELECTRO MECH5 citations62
US7057423B2Jun 6, 2006
Current-voltage transforming circuit employing limiter circuit
SAMSUNG ELECTRO MECH5 citations62
US6864724B1Mar 8, 2005
Current to voltage conversion circuit for photo detector integrated circuit employing gain switching circuit
SAMSUNG ELECTRO MECH6 citations62
US8018177B2Sep 13, 2011
Dimming buck type LED driving apparatus
SAMSUNG ELECTRO MECH3 citations61
US7209001B2Apr 24, 2007
Offset compensation circuit for a monitoring photodiode
SAMSUNG ELECTRO MECH1 citations51
US7737938B2Jun 15, 2010
Driving circuit for LCD backlight
SAMSUNG ELECTRO MECH0 citations42