大功率LED驱动电路研究设计  

Design of a Novel Driving Circuit for High Power LED

作　　者：杜松林[1] 程行[1] 王瑾[1] 

机构地区：[1]中国地质大学机械与电子信息学院

出　　处：《电子技术（上海）》2011年第6期37-38,33,共3页Electronic Technology

基　　金：国家大学生创新性试验计划(101049127)

摘　　要：根据大功率LED的供能要求,从EMI滤波、功率因素校正、半桥谐振转换三个方面着手,以FAN6961和FSFR2100为控制芯片,设计了一款大功率的高效率LED驱动电路,在90～264VAC的线路输入和满载下,功率因数高于93%,效率高于85%,并具有低输入电流谐波失真和低EMI。Based on the power supply requirements of high power LED and starting with EMI filtering,power factor correction,and half-bridge resonant converter,a high-power switched mode power supply with high efficiency is designed which uses FAN6961 and FSFR2100 as the control chips.At the line input and full load of 90～264VAC its power factor can reach more than 93%,the efficiency can reach more than 85% and it has low input-current distortion and EMI.

关 键 词：大功率LED 开关电源 功率因数校正 LLC谐振 

分 类 号：TN322.8[电子电信—物理电子学]