具有短路保护功能的通用线性电源控制电路设计  

Design of general linear power supply control circuitwith short circuit protection

作　　者：陈国明[1] 王春会[1] CHEN Guo-ming;WANG Chun-hui(Department of Information Engineering,Chaoyang Teachers College,Chaoyang Liaoning 122000)

机构地区：[1]朝阳师范高等专科学校信息工程系,辽宁朝阳122000

出　　处：《辽宁师专学报（自然科学版）》2022年第4期100-104,共5页Journal of Liaoning Normal College(Natural Science Edition)

基　　金：朝阳市2022年千名专家进园(景)区活动对接项目

摘　　要：针对现阶段线性电源普遍存在的不能长时间满载工作、带容性和感性负载能力弱等问题,设计一种通用型控制电路.给出了电路构成框图和原理图,详细介绍了各单元电路的工作原理及电路参数的计算方法.该控制电路可以随时监测负载电流,严重过流甚至短路时采取振荡输出的方式对电源进行保护,对电路参数进行适当改动后可用于各种线性电源,提高线性电源的可靠性.In view of the current general problems of linear power supply,such as incapacity of working at full load for long time and weak capacitive and inductive load capacity,a general control circuit is designed.The circuit block diagram and schematic diagram are given,and the working principle of each unit circuit and the calculation method of circuit parameters are introduced in detail.The control circuit can monitor the load current at any time,protect the power supply by the oscillating output in case of serious overcurrent or even short circuit,and can be used for all kinds of linear power supplies after proper modification to circuit parameters,so as to improve the reliability of linear power supplies.

关 键 词：线性电源 运放 短路保护 振荡输出 

分 类 号：TN86[电子电信—信息与通信工程]