自适应LED多路输出驱动电源  

Multi-channel LED Driver with Dynamic Output Voltage Regulation

作　　者：洪春辉[1] 林国庆[1] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350108

出　　处：《中国照明电器》2013年第11期30-33,共4页China Light & Lighting

摘　　要：介绍传统多路LED恒流驱动电源的控制方式和存在的问题。设计了1种具有输出自适应功能的多路LED驱动电源并介绍其工作原理,通过仿真验证了该自适应原理的可行性,并制作了1款具有低能耗、输出电压跟随LED个数最多1路的灯数量变化而变化的自适应LED多路恒流驱动电源。The controlling method and the problems of traditional multi-channel LED constant current driver are introduced. A novel LED driver with dynamic output voltage regulation is designed and its working principle is introduced. Through the simulation, the feasibility of the adaptive principle is verified, and finally a low energy consumption multi-channel LED driver whose output voltage changes following up the change in the quantity of LEDs is built.

关 键 词：多路LED 输出电压自适应 镜像电流源 

分 类 号：TN312.8[电子电信—物理电子学]