Citation link:
Authors:
Todorov, Dimitar; Тодоров, Димитър
Title:
Thermal processes in high power LED
Date of Issue:
2008
Is Part of:
Proceedings of the Technical University – Sofia, 58(2), 2008, pp. 109-114
Publisher:
Технически университет - София
Identifiers:
1311-0829 [issn]
Type:
Article
Language:
eng
Subject:
high-power LED, junction temperature, thermal management
Abstract:
High Power LED’s have been around for years, primarily concentrated as the lighting source for a variety of applications. Nowadays, LED technology is the leading choice for interior and exterior automotive and lamp street lighting. Although LED light sources offer many advantages, special considerations apply to their use in the application. Their electrical properties the optical parameters of LEDs a depend a mainly on junction temperature .Like other electronic components, LEDs have thermal characteristics and limitations. The junction temperature of the power LEDs affects the device’s luminous flux, the color of the device, and its forward voltage. For this reason thermal characterization play important role in case of high power LEDs and necessitating both physical measurements and simulation tools.This paper gives an overview of the topic thermal processes of LEDs for them use in automotive and lamp street applications and presents the results of case studies through numerical modelling.
Description:
Reviewer prof. Todor Djamiykov. - Formulas, diagr. - References, pp. 114
