대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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- Pages.1503-1505
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- 2005
고주파 구동 냉음극 형광방전램프의 시뮬레이션 모델
A Simulation Model of Cold Cathode fluorescent Lamp for High Frequency operation
- Kim, Cherl-Jin (Halla Univ) ;
- Yoo, Byeong-Kyu (Halla Univ) ;
- Yoon, Shin-Yong (Dongguk Univ) ;
- Baek, Soo-Hyun (Dongguk Univ)
- 발행 : 2005.07.18
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.
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