Design of High-Power LED Lighting Driver Based on AP3706

This report describes a high-power LED driver circuit,which is based on BCD’s Primary Side Regulation(PSR) controller,AP3706.It can achieve constant voltage and constant current(CV and CC) regulation without requiring an opto-coupler and secondary control circuitry.The driver circuit was tested at 85~264V AC input voltage under different loads.The experimental results show that the circuit has the advantages of simple structure,high precision constant voltage and current and good stability.