大功率LED光源驱动电路的设计  

Design of High-power LED Lighting Drive Circuit

作　　者：吴舒萍[1] 

机构地区：[1]福建水利电力职业技术学院电力工程系,福建永安366000

出　　处：《淮海工学院学报（自然科学版）》2014年第4期31-35,共5页Journal of Huaihai Institute of Technology:Natural Sciences Edition

摘　　要：驱动电源是大功率LED光源设计的关键技术,利用SD6900为主控芯片,设计制作一款AC—DC非隔离恒流驱动的大功率LED灯的电源电路。该电路输入交流电压220V,恒流输出450mA,具有功率因素补偿、电源过压/欠压保护、输出短路/开路保护/过温保护、电磁辐射污染小等优点。Drive circuit is the key technology of high-power LED lighting.An AC—DC drive cir-cuit with non-constant current was designed with SD6900 as its main controlling chip.It has the constant output current 450 mA with the input power supply AC 220 V.Moreover,it has the fol-lowing functions：power factor compensation,overvoltage/undervoltage protection,short/open circuit protection,high temperature protection and low electromagnetic pollution.

关 键 词：大功率LED 驱动电源 恒流驱动 

分 类 号：TM923[电气工程—电力电子与电力传动]