DocumentCode :
3108488
Title :
Design and implementation of six-phase PWM dimming control for backlight inverter
Author :
Ho, Chien-Yeh ; Chou, Tzong-Wey ; Lin, Chang-Hua
Author_Institution :
Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
fYear :
2010
fDate :
15-17 June 2010
Firstpage :
1136
Lastpage :
1141
Abstract :
This paper proposes a novel dimming control scheme which possesses six-phase PWM dimming control for backlight inverter. We adopt six-phase PWM dimming control circuit to control the brightness of twelve lamps. Each phase can control two lamps. Circuit architecture is full bridge circuit which can improve the total efficiency of the driving circuit. Because six-phase PWM dimming inverters consume smaller input current than single-phase PWM dimming inverters at the same PDIM. So, it will cause that six-phase dimming presents smaller output Lamp currents and a better smooth curve than the conventional single phase dimming. From the experimental results, We verify the performance that the six-phase dimming control will be better than the conventional single phase dimming.
Keywords :
PWM invertors; lamps; lighting control; PDIM; backlight inverter; full bridge circuit; output lamp currents; six-phase PWM dimming control; Capacitors; Clocks; Driver circuits; Lamps; Propagation delay; Pulse width modulation; Pulse width modulation inverters; Resistors; Resonant inverters; Voltage; PWM dimming; current-equalization; six-phase;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2010 the 5th IEEE Conference on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-5045-9
Electronic_ISBN :
978-1-4244-5046-6
Type :
conf
DOI :
10.1109/ICIEA.2010.5515858
Filename :
5515858
Link To Document :
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