- 전압 분배용 전하펌프를 사용한 LED 구동회로
- ㆍ 저자명
- 윤장희,유성호,염정덕,Yun. Jang-Hee,Yoo. Sung-Ho,Ryeom. Jeong-Duk
- ㆍ 간행물명
- 照明·電氣設備學會論文誌
- ㆍ 권/호정보
- 2012년|26권 8호|pp.1-7 (7 pages)
- ㆍ 발행정보
- 한국조명전기설비학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
In this paper, a new LED driving circuit which is able to control dimming of LED is proposed using charge pump. The proposed LED driving circuit steps down the input voltage to operate LED without DC-DC converter. The operation of this driving circuit is verified by P-Spice simulation, and the characteristics of the driving circuit is measured and evaluated in the experiments. As a result, the driving circuit efficiency of 88.5[%] is obtained when all LEDs are turned on by digital control method at the highest dimming level(255/255).