基于CYT1000B的LED高压驱动电源

CYT1000B-based LED High Voltage Driving Power

采用高亮度的小功率贴片LED驱动芯片CYT1000B作为主控制器,设计一款在输入电压185~260V、输出电流为40m A高效节能、低成本的LED驱动恒流驱动电源。主要通过改变输入电压以及不同的驱动负载来测定CYT1000B的应用价值,该电路设计简单、成本低、效率高,特别适合应用于要求不高的照明领域。

Taking the small power SMD with high brightness,LED driving chip CYT1000 B,as the main controller,this paper designs a LED constant current driving power with features of high energy saving and low cost,in which the input voltage is 185 ~ 260 V and the output current is 40 m A. The application value of CYT1000 B is determined by changing input voltage and different driving loads. The circuit with simple design,low cost and high efficiency is especially suitable for the application of low-demanding lighting.