Electrical, thermal and optical characterization of power LED assemblies

Details Electrical, thermal and optical characterization of power LED assemblies Electrical, thermal and optical characterization of power LED assemblies

2007-09-12

arxiv.org/abs/0709.1815v1

Dans Proceedings of 12th International Workshop on Thermal investigations of ICs - THERMINIC 2006, Nice : France (2006)

Physics

Condensed Matter

Materials Science

Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)

Scientific paper

Besides their electrical properties the optical parameters of LEDs also depend on junction temperature. For this reason thermal characterization and thermal management play important role in case of power LEDs, necessitating both physical measurements and simulation tools. The focus of this paper is a combined electrical, thermal and optical characterization of power LED assemblies. In terms of simulation a method for board-level electro-thermal simulation is presented, for measurements a combined thermal and radiometric characterization system of power LEDs and LED assemblies is discussed. Comparison of measurement and simulation results is presented in a case study.

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