基于蓄电池供电的自适应LED照明系统  

Adaptable LED Lighting System Supplied by Storage Battery

作　　者：刘卓[1] 李志豪[1] 赵海洋[1] 刘克富[1] 

机构地区：[1]复旦大学电光源研究所,上海200433

出　　处：《中国照明电器》2009年第4期1-4,共4页China Light & Lighting

摘　　要：本文介绍了一种基于蓄电池供电的LED照明系统的电路设计。以Boost为功率电路拓扑结构,通过合理地安排LED阵列,提高了照明的可靠性。本电路设计可以同时对LED进行模拟调光和数字调光,并且本系统适用于功率从几瓦到几十瓦的LED阵列、端电压范围从6～36V的蓄电池,从而使得对产品进行维护——需要更换LED或是需要更换蓄电池时,只要满足上述要求,无需更换电路模块,系统就能正常并稳定地工作。This paper introduces the design of an adaptable LED lighting system supplied by storage battery. The design uses Boost as the power circuit and enhances the reliability of the system by using a certain LED array. It can change the brightness of the LEDs in both digital and analog way. And also it can work appropriately in the span of power from several watts to tens of watts and voltage from 6V to 36V.

关 键 词：LED 恒流驱动 BOOST变换器 数字调光 模拟调光 

分 类 号：TM923[电气工程—电力电子与电力传动]