한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제14권6호
  • /
  • Pages.129-135
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  • 2015
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  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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방열특성 제어를 위한 PWM 전류제어 기반 LED 모듈 개발

Development of LED Module Control-based PWM Current for Control of Heat-dissipation

  • 이승현 ((주)디오시스) ;
  • 문한주 (고려대학교 바이오의공학부) ;
  • 허성범 (금오공과대학교 기계시스템공학과) ;
  • 최성대 (금오공과대학교 기계시스템공학과)
  • 투고 : 2015.12.05
  • 심사 : 2015.12.09
  • 발행 : 2015.12.31
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초록

This paper shows significant methods that improve the lifespan of LED modules as well as efficiently using an aluminum heat-sink for LED module in high power. It proposes a method that raises stability and lifespan to protect LED modules and the power unit when the LED module has been used for a long hours at high temperatures. During the research, we applied a method of pulse-width modulation (PWM) in order to prevent the phenomenon that the entire power of a system is turned off and the lifespan is reduced when the LED nodule reacts to the high temperatures. To protect the LED module and SMPS based on high efficiency, a temperature sensor is attached underneath the circuit board and the sensor measures the temperature of circuit board when the LED module is powered on. The electrical power connected to SMPS is controlled by PWM when the temperature of the LED module reaches a particular temperature.

키워드

참고문헌

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피인용 문헌

  1. 수직 밀폐형 심부지열 순환 시뮬레이터의 성능 평가에 관한 연구 vol.15, pp.5, 2015, https://doi.org/10.14775/ksmpe.2016.15.5.008
  2. LED 면광원에서 패키지 수량에 따른 휘도변화 특성 vol.15, pp.6, 2015, https://doi.org/10.14775/ksmpe.2016.15.6.070
  3. 30W급 LED 투광등 히트싱크 높이변화에 따른 온도분포에 관한 실험적 연구 vol.16, pp.5, 2015, https://doi.org/10.14775/ksmpe.2017.16.5.150
  4. 30W급 LED 투광등의 풍속에 따른 히트싱크 온도분포에 관한 실험적 연구 vol.18, pp.5, 2015, https://doi.org/10.14775/ksmpe.2019.18.5.096
  5. A Study on Heatsink Temperature Distribution according to the Installation Angle of a 30W LED Floodlight vol.18, pp.8, 2019, https://doi.org/10.14775/ksmpe.2019.18.8.024