Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Considerable reduction of ripple transfer characteristics of the LED Back Light Unit Driver

LED Back Light Unit Driver 회로의 안정화 방법

  • Moon, Myoung-Sung (Yeung Nam University, LED-IT Fusion Technology Research Center) ;
  • Lee, Jung-Hee (Yeung Nam University, LED-IT Fusion Technology Research Center) ;
  • Sung, Gwang-Soo (Yeung Nam University, LED-IT Fusion Technology Research Center) ;
  • Jang, Ja-Soon (Yeung Nam University, LED-IT Fusion Technology Research Center)
  • 문명성 (영남대학교, LED-IT 융합 산업화 연구 센터) ;
  • 이중희 (영남대학교, LED-IT 융합 산업화 연구 센터) ;
  • 성광수 (영남대학교, LED-IT 융합 산업화 연구 센터) ;
  • 장자순 (영남대학교, LED-IT 융합 산업화 연구 센터)
  • Published : 2010.06.16
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Abstract

In order to achieve low power consumption and the uniform power spectrum of LED BLU (Back Light Unit) system, new circuits with a 2 stage L-C (Inductor-Capacitor) coupler have been proposed. From the simulation results based on our proposed model, the ripple power of the L-C regulation-embedded BLU circuit shows a dramatic reduction by more than 89.3% as compared to the normal BLU (without L-C circuits). This indicates that the proposed circuit is very promising for the realization of high-efficiency BLU circuits.

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