The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
권호 표지
DOI QR코드

DOI QR Code

Design of the 140W level-small sized LED Power Control Circuit

140W 급-저면적 LED 전원 제어 회로 설계

  • An, Ho-Myoung (Department of Electronics, Osan University) ;
  • Lee, Juseong (Center of Human-centered Interaction for Coexistence) ;
  • Kim, Byungcheul (Department of Electronic Engineering, Gyeongnam National University of Science and Technology(GnTECH))
  • Received : 2018.02.13
  • Accepted : 2018.09.06
  • Published : 2018.10.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, HIC with various functions is proposed for the design 140W LED power control circuit. The proposed HIC integrates constant voltage/constant current circuit, short circuit protection circuit, internal constant voltage circuit, and dimmer circuit, thereby reducing the horizontal length of the PCB by 16% comparing with the conventional system. Through various experiments, we verified the performance of each block implemented inside of HIC with numerical results. (Constant voltage variation ratio: 2.9%, dimmer circuit duty variation within 5%, stable short protection at 720 mA) Since the PCB area can be significantly reduced by applying the proposed HIC. It is possible to reduce the PCB manufacturing time which takes up most of the manufacturing time, however, It is expected that the faulted power module can be replaced without replacing the whole PCB, so that maintenance / repair can be made easier.

본 논문은 140W 급 저면적 LED 전원 제어 회로 설계를 위해 다양한 기능이 집적된 HIC를 제안한다. 제안된 HIC는 정전압/정전류 구동회로, 단락 보호회로, 내부 정전압회로, dimmer 회로를 하나로 집적해, 제작 시 기존 시스템 대비 PCB 가로 길이를 16% 절감하는 효과를 보였다. 다양한 실험을 통해 HIC 내부에 설계된 각 블록의 성능을 검증했고, (정전압 구동회로 변동률 2.9%, dimmer 회로 오차 5%이내, 720 mA에서 안정적인 short protection) 제안된 HIC를 적용해 시스템에서 필요로 하는 전력 대비 PCB 면적을 상당히 줄일 수 있기 때문에, 제작 시간의 대부분을 차지하는 PCB 제조시간을 단출할 수 있는 효과와 전원 제어 회로에서 발생하는 불량에 대해 기존과 같이 PCB 전체를 교체하지 않고 HIC만 교체할 수 있도록 하여 유지/보수를 쉽게 할 수 있는 효과를 기대한다.

Keywords

References

  1. D.-Y. Lee, "Development of 80W LED Lighting Equipment for Broadcasting System," JKIIECT, vol. 10, no. 6, pp. 506-510. Nov. 2017.
  2. J.-H. Kwon, J.-M. Lee, H.-J. Kim, E.-Y. Kang, and K.-J. Park, "Thermal Characteristics of the design on Residential 13.5W COB LED Down Light Heat Sink," JKIIECT, vol. 7, no. 1, pp. 20-25. Mar. 2014.
  3. Chiu H-J, Lo Y-K, Chen J-T, Cheng S-J, Lin C-Y, Mou S-C. IEEE Transaction on Industrial Electronics, 57, 735 (2010). https://doi.org/10.1109/TIE.2009.2027251
  4. Chiu H-J, Cheng S-J. Int. J. Circ. Theor. Appl. 37, 928 (2009). https://doi.org/10.1002/cta.495
  5. Qu X, Wong S-C, Tse CK, IEEE Transaction on Power Electronics 25, 331 (2010).
  6. Chiu H-J, Huang H-M, Yang H-T, Cheng SJ, International Int. J. Circ. Theor. Appl. 36, 205 (2008). https://doi.org/10.1002/cta.404
  7. Byungcheul Kim, Eui-Seok Jeon, Chan Kim, Engineering and Technology (S-CET), Spring Congress on, 2012, p. 1.
  8. W. Aloisi and G. Palumbo, Int. J. Circ. Theor. Appl. 33, 419 (2005). https://doi.org/10.1002/cta.329
  9. Y-H Chang, Y-C Chen, Int. J. Circ. Theor. Appl. 40, 835 (2012). https://doi.org/10.1002/cta.758