Paper Info
Title
Low drain voltage S/H type PWM LED current driver for BLU in mobile LCD
Abstract
A pulse-width-modulation light emission diode (LED) current driver for Back Light Unit in mobile liquid crystal display with minimum operable drain voltage of 360mV and 3σ current accuracy of 3% without trimming is proposed in 0.35μm BCD process. S/H type structure with sequential channel driving scheme reduces power consumption as reference current of current mirror with accurate output current. High reference current is just applied for the enhanced matching in sampling phase, while reference current is minimized in holding phase. The proposed triggered buffer amplifier enables fast and accurate PWM current driving.
Year
DOI
Venue
2014
10.1109/CICC.2014.6946086
CICC
Keywords
Field
DocType
mobile lcd,driver circuits,pwm led current driver,low drain voltage,current driver,triggered buffer amplifier,pulse width modulation light emission diode,pwm,pwm power convertors,mobile liquid crystal display,high reference current,voltage 360 mv,blu,liquid crystal displays,sequential channel driving,reference circuits,led driver,back light unit
Computer science,Voltage,Current driver,Pulse-width modulation,Electronic engineering,Liquid-crystal display,Electrical engineering
Conference
Citations 
PageRank 
References 
0
0.34
1
Authors
3
Name
Order
Citations
PageRank
Changbyung Park1468.41
Tae-Hwang Kong2397.11
Gyu-Hyeong Cho340176.39