基于LT3476水冷散热人体感应式LED照明系统的设计  

The Design of Water Cooling Human Body Inductive LED Lighting System Based on LT3476

作　　者：王志斌[1] 谷越[1] 

机构地区：[1]燕山大学电气工程学院,秦皇岛066004

出　　处：《照明工程学报》2010年第5期89-94,共6页China Illuminating Engineering Journal

基　　金：国家自然科学基金(60877047);河北省自然科学基金(F2008000873)资助项目

摘　　要：本文设计了一款基于linearLT3476芯片的智能LED照明系统。该系统可驱动1～32只大功率白光LED,并根据节能的要求,给出了基于热释红外线传感器人体检测触发电路。在设计中充分考虑了大功率LED工作时的散热问题,提出了可使热量快速散失,抑制温度在LED正常工作结温125℃以下,增加大功率白光LED的寿命的散热冷却器。实验和仿真证明,该系统安全可靠,经济节能,使用方便。This paper designed a linear LT3476 chip-based smart LED lighting systems.The system can drive 1 ～ 32 high-power white LED,and in accordance with the requirements of energy saving,give a pyroelectric infrared sensor-based human detection trigger circuit.Fully taken into account in the design,Since rapid heat loss can reduce the junction temperature and increase the life span of LED heat radiator is used.Experimental results show that the system is safe and reliable,economic,energy-saving and easy to use.

关 键 词：大功率 白光LED 散热冷却器 人体感应 

分 类 号：TM923[电气工程—电力电子与电力传动]