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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

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

방열특성 제어를 위한 PWM 전류제어 기반 LED 모듈 개발

  • 이승현 ((주)디오시스) ;
  • 문한주 (고려대학교 바이오의공학부) ;
  • 허성범 (금오공과대학교 기계시스템공학과) ;
  • 최성대 (금오공과대학교 기계시스템공학과)
  • Received : 2015.12.05
  • Accepted : 2015.12.09
  • Published : 2015.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

References

  1. Jung, T. S. and Kang, H. K., "Evaluation on the Cooling Performance to Design Heat Sinks for LED lightings," J. Korean Soc. Precis. Eng., Vol. 29, No. 7, pp. 778-784, 2012. https://doi.org/10.7736/KSPE.2012.29.7.778
  2. Lee, S. M., Lee, S. I., Yang, J. K., Lee, J. C. and Park, d. H., "Optimization of Heatsink and Analysis of Thermal Property in 75W LED Module for Street Lighting," Trans. Korean Inst. Electr. Eng., Vol. 59, No. 3, pp. 609-613, 2010.
  3. Park, S. H., An, J. C., Heo, J. W., Choi, H. K. and Choi, S. D., "A Study on Light Quality of LED for Control of Light Intensity", J. Korean Soc. Manuf. Technol. Eng., Vol. 11, No. 6, pp. 175-182, 2012
  4. Ku, G. M., Kim, K., Park, S. H., Choi, S. D. and Heo, J. W., "Cooling Performance Study of a Impinging Water Jet System with Heat Sink for High Power LEDs", J. Korean Soc. Manuf. Technol. Eng., Vol. 12 No. 6, pp. 152-158, 2013.
  5. Hwang, J. M., Choi, S. D. and Kim, C. G., "Thermal Performance Evaluation of the Projector Module by the LED Output", KSMTE Annual Autumn conference, p. 310, 2015.
  6. Kim, D. G., Kim, I. K., Yu, S. Y., Kwon, W. and Kil, G. S., "Comparative Analysis on Heat Radiation of LED Luminaires", The Korea Society for Railway Annual Autumn conference, pp. 1530-1535, 2011.
  7. Yoon, J. S., Choi, H. S., Shin, H. Y. and Lim, T. W., "Temperature and Sound Noise Control for LED Lamp", J. Korean Soc. Mar. Eng., Vol. 35, No. 8, pp. 1078-1084, 2011. https://doi.org/10.5916/jkosme.2011.35.8.1078
  8. Choi, H. S., Shin, H. Y., Oh, J. Y. and Lee, s. S., "Temperature Control for LED Lamps using RF Communication", KSOME Annual Autumn Conf., pp. 130-132, 2012.
  9. Seo, B. S., Lee, K. J., Cho, Y. S. and Park, d. H., "Analysis on Thermal and Optical Characteristics to the Optimal Design Heat Sink of 30W COB LED Down Light", KIEE Annual Autumn Conf., pp. 1223-1224, 2012.
  10. Jang, H., Suh, J. S. and Yi, C. S., "A Study on the radiant Heat Characteristic According to Type and Array of LED Lighting Heatsink," J. Korean Soc. Manuf. Process Eng., Vol. 12, No. 3, pp. 54-60, 2013.
  11. Cho, Y. T., "Heat Sink of LED Lights Using Engineering Plastics", J. Korean Soc. Manuf. Process Eng., Vol. 12, No. 4, pp. 61-68, 2013.
  12. Hwang, H. D. and Ko, D. S., "Evaluation of Plant Growth according to the Wavelength Characteristics of the LED Light Source," J. Korean Soc. Manuf. Process Eng., Vol. 13, No. 5, pp. 98-106, 2014. https://doi.org/10.14775/ksmpe.2014.13.5.098

Cited by

  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