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.
出处
《淮海工学院学报（自然科学版）》
CAS
2014年第4期31-35,共5页
Journal of Huaihai Institute of Technology:Natural Sciences Edition
关键词
大功率LED
驱动电源
恒流驱动
high-power LED
drive circuit
constant current drive
