基于COT架构的过流保护电路设计  

Design of Over-current Protection Circuit Cased on COT Architecture

作　　者：刘健 LIU Jian(Yuncheng University,Yuncheng 044000,China)

机构地区：[1]运城学院,山西运城044000

出　　处：《通信电源技术》2020年第6期121-122,共2页Telecom Power Technology

摘　　要：恒定导通时间架构(COT)具有相对简单的控制回路,响应更迅速,工作频率可以随负载变化而变化,因此受到业界广泛关注。作为电源管理的关键模块,过电流保护可以有效避免设备发生过载、短路等问题,文章针对基于COT架构Buck转换器的过电流保护电路设计进行了研究,提出可调节门限、具备温度补偿的过流保护电路。The constant conduction time architecture(COT)has a relatively simple control loop,the response is faster,the working frequency can change with the load,so it has been widely concerned in the industry.As a key module of power management,over-current protection can effectively avoid problems such as overload and short circuit of equipment.This paper studies the design of over-current protection circuit based on COT architecture Buck converter,and proposes an overcurrent protection circuit with adjustable threshold and temperature compensation.

关 键 词：COT 恒定导通时间架构 过流保护 电路设计 

分 类 号：TM773[电气工程—电力系统及自动化]