Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Harmonic Characteristics of SMPS Load in LED Display Board

LED 전광판용 SMPS의 고조파 특성에 관한 연구

  • 박준열 (홍익대학교 전자전기공학부) ;
  • 고만석 (홍익대학교) ;
  • 장래창 (홍익대학교) ;
  • 최홍규 (홍익대학교 과학기술대학 전자.전기공학과)
  • Received : 2012.12.20
  • Accepted : 2013.07.23
  • Published : 2013.09.30
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Abstract

The prevalence of electronic devices in our modern life is accompanied with the generation of harmonics caused by the nonlinear characteristic load. Especially, the employment of LED have brought the rapid use of SMPS. SMPS is used for supplying the constant DC electric power to the LED display board, but it has a big problem which gives birth of harmonics causing by its high-speed switching. measurement HIOKI 3196 equipment to solve these harmonics were measured. In this study, we are LED Display Board Load Measuring the impedance response with $X_L$ changes for removing harmonics in the measured. And we adopted the suitable passive filter by the impedance response characteristic obtained in the $X_L$ variation experiments. We are trying to deeply the application of passive harmonic filter characteristics that generation in the LED Display Board through EDSA LED simulation.

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