A CCFL simulation model applied to the back-light unit with high frequency operation

백라이트 유닛에 적합한 고주파 구동 냉음극형관램프(CCFL)의 시뮬레이션모델

The Cold cathode fluorescent lamp(CCFL) are 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. In this paper, the lamp impedance model is proposed, and this model is established from some equations and measured electrical characteristics of CCFL. The validity of porposed lamp model is verified from the simulation and experimental results.