现代电子技术Issue(20)：148-151,4.
基于ADP3806的高功率LED驱动电路设计
Design of high power LED driving circuit based on ADP3806
摘要
Abstract
An ADP3806-based high efficiency driving circuit for the high power light emitting diode(LED)was designed. ADP3806 is a switch mode power supply controller,which has double loop constant voltage and constant current control,long-range precision current detection,shutdown and programmable synchronous switching frequency,and can provide constant cur-rent. Meanwhile,SEPIC was used in design. Therefore,an output voltage being higher or lower than the input voltage can be provided by SEPIC. Under appropriate duty cycle,continuous conduction mode and the pulse width modulation control become easier,and the efficiency is improved. The voltage spikes and ringing caused by transformer leakage inductance can be avoided. The design is very suitable for the occasions that need to boost and buck conversion to drive multiple high-power LEDs simulta-neously.关键词
ADP3806/高功率LED/SEPIC/驱动电路Key words
ADP3806/high power LED/SEPIC/driving circuit分类
信息技术与安全科学引用本文复制引用
许霖霖,罗永道..基于ADP3806的高功率LED驱动电路设计[J].现代电子技术,2014,(20):148-151,4.基金项目
国家自然科学基金资助项目 （）
