한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2003년도 학술대회논문집
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- Pages.169-173
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- 2003
고출력 발광다이오드의 구동전압 유형에 따른 특성
Characteristics of high-power RGB LEDs according to types of operating voltage
초록
This paper analyzes the effects of various operating voltages on the electrical and light output characteristics of 20mW(5mm-Ф), 1W and 5W high-power RGB LEDs. Operating voltages of three types are compared on a simple LED circuit: DC, full-wave rectified DC. and square-wave DC. As a result, it is found that the 1W and 5W high-power LEDs should be provided with appropriate heat sinks that hold down the increase of junction temperature. As for the operating efficiency the case of full-wave rectification gives the highest value.
키워드