Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study of White-LED Driver IC for Mobile Applications

모바일용 White-LED Driver IC에 관한 연구

  • 고영석 (단국대학교 전자전기공학과) ;
  • 박시홍 (단국대학교 전자전기공학과)
  • Published : 2009.07.01
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Abstract

In this study, we proposed WLED(White-Light Emitting Diode) driver IC for mobile applications. This IC drove WLED for mobile applications with low input voltage and high efficiency by using boost converter. The device was designed by using boost converter applied current-mode control algorithm and provided PWM(Pulse Width Modulation) & analog dimming. Designed IC consisted of bias block, drive block, control block, protection block. We confirmed this device worked well through a application PCB (Printed Circuit Board) test.

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References

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