手机充电器的开关电源设计  

Design of switching power supply for mobile phone chargers

作　　者：朱庭西 ZHU Tingxi(Northwestern Polytechnical University,Xi̓an 710000,China)

机构地区：[1]西北工业大学,西安710000

出　　处：《计算机应用文摘》2024年第10期85-87,103,共4页Chinese Journal of Computer Application

摘　　要：介绍了一种基于S9111C原边反馈控制芯片的手机充电器开关电源设计,从电路和PCB印制电路板2个方面进行,制作了实物开关电源。该设计兼容5 V/1 A的充电协议,经过对负载的测试,输出电压的纹波系数为5.39%,符合国家标准的规定。A switch power supply design for mobile phone chargers based on the S9111C primary feedback control chip was proposed,which includes two aspects:circuit and PCB printed circuit board.A physical switch power supply was produced.This design is compatible with a charging protocol of 5 V/1 A.After testing the load,the ripple coefficient of the output voltage is 5.39%,which meets the requirements of national standards.

关 键 词：开关电源 S9111C 电路设计 PCB设计 

分 类 号：TM910[电气工程—电力电子与电力传动]