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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 187 - 190 (4page)
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초록· 키워드
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This paper presents a high dimming ratio LED driver for automotive lighting applications which require avoiding EMI radiation. In order to accomplish a high dimming ratio LED driver, the preloading inductor current methodology is proposed for the power stage of the proposed circuit to achieve the fast transient response time during the LED load switching. The proposed circuit receives the input voltage of 12V and generates the output voltage of 30V with the load current of 350㎃. The chip is implemented with 0.35㎛ BCDMOS process, and the die area is 2.35ｘ2.35 ㎟. Measurement results illustrate that the proposed LED drive system features the minimum rising time as small as 240㎱ and the corresponding dimming ratio becomes 2000:1 at the dimming frequency of 1㎑. The maximum power conversion efficiency of the chip is measured to be 93.72%.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. DESIGN CONCEPTS AND CONSIDERATIONS
Ⅲ. SIMULATION AND MEASUREMENT RESULTS
Ⅳ. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2014-569-000729470