双路输出小功率开关电源设计  

On the Design of Dual-output Low Power Switching Power Supply

作　　者：彭昊 PENG Hao

机构地区：[1]合肥工业大学仪器科学与光电工程学院,安徽合肥230009

出　　处：《安徽职业技术学院学报》2021年第3期24-29,共6页Journal of Anhui Vocational & Technical College

基　　金：国家重点研发计划“数据驱动的零件精密加工过程精度稳健自愈理论与方法”(2019YFB1703700);重庆市技术创新与应用发展专项重点项目课题“高档数控机床运维服务平台及智能终端研发与应用”(cstc2019jscx-mbdxX0045)。

摘　　要：文章提出了一种基于TOP224Y芯片的高精度双路输出小功率开关电源的设计方法,对TOP224Y芯片的使用特性、电源电路设计和高频电压器设计进行了详细介绍。实验分析表明,采用文章所述方法设计的开关电源双路输出电压波动在5%以内,且该电源拥有过电流保护功能,并具有成本低、精度高、工作可靠等优点。In this paper,a design method of high-precision dual-output low-power switching power supply based on TOP224Y chip is presented,and the application characteristics of TOP224Y chip,power circuit design and high frequency voltmeter design are introduced in detail.The experimental analyses show that the output voltage fluctuation of the designed switching power supply by using the method described in this paper is less than5%.The power supply has the function of over-current protection,and it also has the advantages of low cost,high precision and reliable operation.

关 键 词：TOP224Y 双路输出 开关电源 过电流保护 变压器 

分 类 号：TM13[电气工程—电工理论与新技术] TP368.1[自动化与计算机技术—计算机系统结构]