The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Development of a 150W Switched Mode Power Supply operates at -40℃

-40℃에서 동작하는 150W급 SMPS 개발

  • 박성일 (동신대학교 정보통신공학과) ;
  • 김성수 (동신대학교 언어치료학과)
  • Received : 2018.01.22
  • Accepted : 2018.02.15
  • Published : 2018.02.28
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Abstract

In this paper, we designed a 150W LED lighting SMPS circuit operating at $-40^{\circ}C$. We designed a 150W LED lighting constant current circuit for the characteristics of the SMPS and fabricated and measured. The operating temperature range for a 150W LED lighting SMPS circuit is -40 to $70^{\circ}C$ and SMPS predicted life was 1.29-2.25 years based on 24 hours. The high acceleration life test and EMI test confirmed no abnormality.

본 논문에서는 $-40^{\circ}C$에서 동작하는 150W급 LED조명용 전원공급장치(SMPS) 회로를 설계하였다. SMPS의 특성 해석을 위해서 150W급 LED 조명 구동 정전류 회로를 설계하고 시제품의 제작 및 성능을 측정하였다. 150W급 LED조명용 SMPS 회로의 동작온도범위는 $-40{\sim}70^{\circ}C$이며, SMPS 예측 수명은 24시간 기준으로 1.29~2.25년으로 예측되었다. 초가속수명시험 및 EMI 전도 시험을 통해 이상이 없음을 확인하였다.

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