Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2010.11a
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- Pages.363-364
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- 2010
Design of LED Driver Operated in DCM mode for Wide Input Voltage Range
넓은 입력변화에서 불연속 전류 제어 모드로 동작하는 LED 드라이버 설계
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Han, Soo-Bin
(Korea Institute of Energy Research)
;
-
Park, Suck-In
(Korea Institute of Energy Research)
;
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Song, Eu-Gine
(Korea Institute of Energy Research)
;
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Jung, Hak-Kun
(Korea Institute of Energy Research)
;
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Jung, Bong-Man
(Korea Institute of Energy Research)
;
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Chae, Soo-Young
(Korea Institute of Energy Research)
-
한수빈
(한국에너지기술연구원)
;
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박석인
(한국에너지기술연구원)
;
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송유진
(한국에너지기술연구원)
;
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정학근
(한국에너지기술연구원)
;
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정봉만
(한국에너지기술연구원)
;
-
채수용
(한국에너지기술연구원)
- Published : 2010.11.26
Abstract
Most LED drivers uses current control method to adjust LED current. Using AC power grid such as off-line converter, Buck topology is popular because input voltage of LED driver is much higher than LED output voltage. Normally DCM current control is more popular than CCM current mode control in the range of below 50W, But DCM characteristics are dependent on the input voltage variation. This paper deals with what should be considered in DCM for LED driver with valley fill circuit.
Keywords