Flyback방식을 적용한 100W급 고성능 LED 드라이브에 관한 연구

• 영문명: A Study on the High Performance of the LED Drive Using Flyback Topology
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 장용해(Yong-Hae Jang) 정현석(Hyeon-Seok Jeong)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제15권 1호, 35~42쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2010.03.30

영문 초록

Dramatic improvements in the performance of HB LEDs will open up new high-growth opportunities for driver ICs over the next five years, according to a new report from market research company Strategies Unlimited. As high-brightness LEDs (HBLEDs) are becoming more efficient and their lumens/Watt increases, they become more suitable for illumination applications such as automotive exterior lighting like daytime running lights as well as general lighting applications. Leading LED manufacturers have recently introduced HB LEDs with over 150 lumens/W, making it possible to replace halogen lamps in light fixtures. The best approach is to drive the HB LEDs with a constant current source. The simplest circuit to create constant current source is to have a MOSFET in series with an HB LED, measure the HB LED current, compare it to a reference voltage, and feed it back through an operational amplifier to control the gate of the MOSFET. In this paper, high-power and synchronous high-brightness LED (HB LED) driver that has Flyback SMPS topology designed and applied prototype of LED luminaire. Proposed Flyback converter consist of AC filter, high frequency transformer, Semiconductor switch, Voltage reference, and DC filter and HB LED drive for constant current, constant voltage drive circuit. LED luminaire prototype used experiment physical, electrical and optic test and performance analyzed.

목차

Ⅰ. 서 론

Ⅱ. LED 드라이브의 설계

Ⅲ. 실험결과 및 고찰

Ⅳ. 결 론

키워드

HB LED(고출력 LED) Flyback Converter(플라이백컨버터) LED Drive(LED드라이브)