Study on High-power LED Heat Dissipation Based on Printed Circuit Board

被引:2
作者
WANG Yiwei1
2.Tianjin Gongda HiYu Solid State Lighting Co
机构
关键词
high-power LED; printed circuit board(PCB); substrate of heat dissipation; thermal resistance; junction temperature;
D O I
暂无
中图分类号
TN41 [印刷电路];
学科分类号
080903 ; 1401 ;
摘要
In order to study the role of printed circuit board(PCB)in high-power LED heat dissipation,a simple model of high-power LED lamp was designed.According to this lamp model,some thermal performances such as thermal resistances of four types of PCB and the changes of LED junction temperature were tested under three different working currents.The obtained results indicate that LED junction temperature can not be lowered significantly with the decreasing thermal resistance of PCB.However,PCB with low thermal resistance can be matched with smaller volume heat sink,so it is hopeful to reduce the size,weight and cost of LED lamp.
引用
收藏
页码:120 / 124
页数:5
相关论文
共 1 条
[1]   LED灯具的热分析与散热设计 [J].
李鹏 .
中国照明电器, 2008, (12) :17-19