THERMAL CIRCUIT CALCULATION AND REAL-TIME ANALYSIS OF LED LIGHT SOURCE LUMINAIRES

Öz

In semiconductor luminaires, thermal circuit design is important since operating temperature directly affects performance and life of luminaires. In this study; In order to keep operating temperature of LED light source luminaires normal, thermal circuit is emphasized. In this context, necessary information about LED and thermal resistance calculation are given in this study. As a real-time application, 10 different power luminaires have been determined on market, thermal resistance calculations have been made depending on heat that needs to be removed and required area calculations have been made for heatsink that needs to be used. Comparative analysis of thermal circuit area calculation results were made with existing heatsink areas of luminaires. Accordingly, it was concluded that thermal circuit designed luminaires which has insufficient heat sink area have a shorter life of approximately 22.7% compared to others.

Anahtar Kelimeler

• LED
• Thermal resistance
• Junction temperature
• Heatsink

Kaynakça

1. Referans1 Chitnis, D., Thejo kalyani, N. , Swart, H., Dhoble, S., Escalating opportunities in the field of lighting, Renewable and Sustainable Energy Reviews, 64 (2016), pp. 727-748.
2. Referans2 Nardelli, A., Deuschle, E., de Azevedo, L. D., Pessoa, J. L. N., Ghisi, E., Assessment of Light Emitting Diodes technology for general lighting: A critical review, Renewable and Sustainable Energy Reviews,75,2017, pp.368-379. Referans3 ***, United Nations Environment Programme. Assessment of opportunities for global harmonization of minimum energy performance standards and test standards for lighting products. Collaborative Labelling and Appliance Standards Program.
3. Referans4 Khan,N., Abas, N., Comparative study of energy saving light sources,Renewable and Sustainable Energy Reviews,15 (2011), 1, pp. 296-309.
4. Referans5 Yam, F., Hassan, Z., Innovative advances in LED technology,Microelectronics Journal,36 (2005), 2, pp. 129-137.
5. Referans6 Sanderson, S. W., Simons, K. L., Light emitting diodes and the lighting revolution: The emergence of a solid-state lighting industry,Research Policy, 43 (2014), 10, pp. 1730-1746.
6. Referans7 Wu, M., Huang, H., Huang, B., Tang, C., Cheng, C., Economic feasibility of solar-powered led roadway lighting, Renewable Energy,34 (2009), 8, pp. 1934-1938.
7. Referans8 Xiaobing, L., Zhangming, M., Sheng, L., Thermal design of a 16W LED bulb based on thermal analysis of a 4W LED bulb, Proceedings of IEEE, 60th Electronic Components and Technology Conferance (ECTC 2010), Las Vegas, NV, USA, 2010.
8. Referans9 Vahaplar, K., Gürdal, A. Ö., Kesgin, G., Aydınlatmada LED ve LED Üretim Teknolojileri.

9. Referans10 Shur, M., Zukauskas, R.,Solid-State Lighting: Toward Superior Illumination, Proceedings of the IEEE, 2005, 93, pp. 1691 - 1703.
10. Referans11 Maaspuro, M.,Tuominen, A., Thermal analysis of LED spot lighting device operating in external natural or forced heat convection,Microelectronics Reliability,53 (2013), 3, pp. 428-434.
11. Referans12 Weiming, L., QingLiang, Z., YuZhen, X., Qiang, Z.,Temperature effect on performance and reliability of QR tapped-inductor Buck LED driver, Proceedings, International Power Electronics and Application Conference and Exposition, Shanghai, China, 2014.
12. Referans13 Zhang, H., Developing highly reliable LED luminaires for high temperature applications using AC-direct driving LED technology, Proceeding, 2018 IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, USA, 2018.
13. Referans14 King, M., Thermal Management Basics and its Importance for LED Luminaire Performance and Cost, 2010
14. Referans15 Schutt, E., Thermal management and design optimization for a high-power LED work light,Plastics Technology, 2014.
15. Referans16 Yun, J., Shim, J.I., Shin, D.S., Current, voltage and temperature distribution modeling of light-emitting diodes based on electrical and thermal circuit analysis, Semiconductor Science and Technology,28 (2013), 8.
16. Referans17 PCB - an Important Piece of Puzzle in the LED Thermal Management, ThomasNet News, 2017.
17. Referans18 M. Grujicic, C. Zhao, E. Dusel, The effect of thermal contact resistance on heat management in the electronic packaging, Applied Surface Science,246 (2005), 1-3, pp. 290-302. Referans19 Bridelux, LED’ler Üzerindeki Termal Etki ve Uygun Soğutucu Seçimi, Bridelux Yayınları, İstanbul, Türkiye, pp. 5-15, 2017.
18. Referans20 ***,ANTRAK, https://antrak.org.tr/genel/so%C4%9Futucular/