Title :
Digital dimmable controller in CCFL module based on variable frequency technique
Author :
Feng Ran ; Tiezhu Li ; Meihua Xu ; Jian Wu
Author_Institution :
Key Lab. of Adv. Displays & Syst. Applic., Shanghai Univ., Shanghai
Abstract :
A novel simple control method to improve the ignition behavior of cold cathode fluorescent lamp (CCFL) in digital-dimming mode is proposed in this paper. To extend the lamp life, we designed a digital-dimming controller (DDC) in cold cathode fluorescent lamp based on variable frequency technique. The design was simulated by Cadence Spectre. It is effective to eliminate the ignition current spike and reduce the high ignition voltage.
Keywords :
cathodes; digital circuits; digital control; fluorescent lamps; lighting control; variable-frequency oscillators; Cadence Spectre; cold cathode fluorescent lamp; digital-dimming controller; ignition current; ignition voltage; variable frequency technique; variable-frequency oscillator; Cathodes; Circuits; Computer displays; Digital control; Flat panel displays; Fluorescent lamps; Frequency; Ignition; Liquid crystal displays; Voltage control; Backlight; CCFL; DDC; frequency-shift;
Conference_Titel :
Electronic Packaging Technology & High Density Packaging, 2008. ICEPT-HDP 2008. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-2739-0
Electronic_ISBN :
978-1-4244-2740-6
DOI :
10.1109/ICEPT.2008.4607006
