Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A study on color variable technique using high brightness LEDs

고휘도 LED 광원을 사용하는 광색가변 기술에 관한 연구

  • Yu, Yong-Su (Dept. of Electrical Engineering,HECs.POTRI, Chonnam National University) ;
  • Song, Sang-Bin (Dept. of Electrical Engineering,HECs.POTRI, Chonnam National University) ;
  • Kim, Yan-Ho (Dept. of Electrical Engineering,HECs.POTRI, Chonnam National University) ;
  • Yeo, In-Seon (Dept. of Electrical Engineering,HECs.POTRI, Chonnam National University)
  • 유용수 (전남대 전기공학과.HECS.POTRI) ;
  • 송상빈 (전남대 전기공학과.HECS.POTRI) ;
  • 김완호 (전남대 전기공학과.HECS.POTRI) ;
  • 여인선 (전남대 전기공학과.HECS.POTRI)
  • Published : 2001.07.18
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Abstract

This paper suggests a method of color variation technique to generate stable white light. The light from high brightness RGB LED was mixed according to the RGB LED luminance ratio. A microcontroller-based PWM control circuit and switching circuit is used to achieve full color variation. It is confirmed that the stable white light and full color variation is possible.

Keywords