Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Applications of Current Limiting Diode to Chip on Board Type Light Source and Lighting Equipment Circuits

정전류다이오드를 이용한 COB 타입 LED 광원 및 조명기기 회로

  • Park, Hwa Jin (Department of Electronics Engineering, Sunmoon University) ;
  • Yu, S.J. (Department of Electronics Engineering, Sunmoon University) ;
  • Park, Jong Min (Department of Electronics Engineering, Sunmoon University) ;
  • Kim, Y.J. (Heesung Material LTD.)
  • Received : 2013.04.30
  • Accepted : 2013.05.24
  • Published : 2013.06.01
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Abstract

Current limiting diode (CLD) was fabricated using junction field effect transistor (JFET) structured two small cells and eight large cells. Two small cells and eight large cells were connected in parallel and the obtained constant current was 110 mA. The application of CLD in each of the parallel circuits on chip on board (COB) type LED lighting source, could significantly reduce the current deviation within the parallel circuits. The applications of CLD on AC power small lighting source, battery power low voltage parallel lighting source and AC flat lighting source were investigated.

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References

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