대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
- /
- Pages.197-199
- /
- 2005
표시장치에 적용되는 CCFL의 모델과 인버터 구동
A Modeling and Driving Performance for CCFL Applied to the Display Unit
- Kim, Cherl-Jin (Halla Univ) ;
- Yoo, Byeong-Kyu (Halla Univ) ;
-
Yoon, Shin-Yong
(Dongguk Univ)
- 발행 : 2005.04.28
초록
The Cold cathode fluorescent lamp (CCFL) are widely used to illuminate the liquid crystal display(LCD). Ballasts are required for CCFL because the lamp need high starting voltage and behave negative dynamic resistant characteristics in the desired region of operation. Dimming methods of CCFL are used to pulse frequency modulation(PFM) or pulse width modulation(PWM). In this paper, CCFL driving and control circuit is designed by half-bridge type series and parallel resonant inverter that variable frequency modulation method to control the output voltage current. The validity of this study is confirmed from the simulation and experimental results.
키워드