Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1594
Title: Design of an LED thermal system for automotive systems
Authors: Kwok, KF
Divakar, BP
Cheng, KWE 
Keywords: LED
Thermal design
Luminous efficiency
Constant current power
Vehicle lighting
Issue Date: 2009
Publisher: Power Electronics Research Centre, The Hong Kong Polytechnic University
Source: PESA 2009 : International Conference on Power Electronic Systems and Applications : 20th-22nd May 2009, p. [1-4] How to cite?
Abstract: The paper examines the high power Light Emitted diode (LED) and the hear distribution of the heat sink. Beside we also study the relationship between temperature and the current on the LEDs luminous efficiency. The temperature rise to over the limit level that the luminous efficiency will decrease rapidly. The current increase will cause the nonequilibrium electron diffuse out of the potential wall and will increase the temperature, so as to decrease luminous efficiency and the LEDs life [1]. Enhancing the heat manage of LEDs that can improve the luminous efficiency. Thermal design examines by using the thermal analysis. Finally we propose the electrical circuit to drive the LEDs in constant current power to maintain the temperature more constant of LEDs.
URI: http://hdl.handle.net/10397/1594
ISBN: 978-988-17471-3-6
Rights: Copyright © The Hong Kong Polytechnic University 2009.
Appears in Collections:Conference Paper

Files in This Item:
File Description SizeFormat 
PESA_2009_K210509127.pdf614.93 kBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

372
Last Week
5
Last month
Checked on May 22, 2016

Download(s)

315
Checked on May 22, 2016

Google ScholarTM

Check



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.