基于TOP243Y的单片反激开关电源设计

摘要

The design of a single chip flyback switching power supply is introduced,which has several output.The design of power is based on an intergrated chip called TOP243Y ,its external circuit such as input EMI fliter circuit,clamping circuit, high fequency transformer,output rectifier-filter circuit are detailedly introuduced and analyzed ,assembled and debuged the prototype of power.%介绍了一种具有多路输出的单端反激式开关电源的设计方法，给出了利用单片开关电源集成芯片TOP243Y的电源设计实例。对外围输入EMI滤波电路、钳位电路、高频变压器、输出整流滤波电路等部分的设计过程进行了详细的分析和说明，并对设计样机进行组装和调试。