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Operating Temperature Analysis of LED with Cylindrical Cu Slug

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Abstract:

High power light emitting diodes is the new era of lighting due to momentous supremacy in terms of lighting efficacy over traditional lighting systems. The reliability of LED is dependent on its junction temperature. This study confers on the thermal and stress characterization of LED chip with copper cylindrical heat slug through simulation method. The simulation characterization was carried out with Ansys version 11 at ambient temperature of 25°C under natural convection condition. The LED package was powered with input powers of 0.1 W, 0.5 W and 1W .Results indicated that input power influences the junction temperature and stress of LED chip.

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Periodical:

Applied Mechanics and Materials (Volume 487)

Pages:

145-148

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.487.145

Citation:

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Online since:

January 2014

Authors:

Rajendaran Vairavan, Zaliman Sauli*, Vithyacharan Retnasamy

Keywords:

ANSYS, Cylindrical Cu Heat Slug, High Power LED, Junction Temperature

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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