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전압 분배용 전하펌프를 사용한 LED 구동회로
LED Driving Circuit using Charge Pump for Voltage Distribution
- 윤장희;
- 유성호;
- 염정덕
초록
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).
키워드
LED; Driving Circuit; Voltage Division; Efficiency; Dimming; LED; Driving Circuit; Voltage Division; Efficiency; Dimming
- 제목
- 전압 분배용 전하펌프를 사용한 LED 구동회로
- 제목 (타언어)
- LED Driving Circuit using Charge Pump for Voltage Distribution
- 저자
- 윤장희; 유성호; 염정덕
- 발행일
- 2012-08
- 저널명
- 조명.전기설비학회논문지
- 권
- 26
- 호
- 8
- 페이지
- 1 ~ 7
- 언어
- KOR
- 출판사
- 한국조명.전기설비학회
- 발행국가
- 대한민국
- 분량
- 7 페이지
- ISSN
- P 1229-4691