一种用于锂电池的可变电流充电系统设计

A Design of Variable Current Charging System for Lithium Battery

摘要: 针对目前各种便携式如智能手机、平板电脑等移动设备中锂电池对于充电时间越来越短的需求以及目前各充电系统输出恒定电流特征，无法满足不同容量的锂电池快充困扰。本文设计了一种适用于锂电池的可变电流充电系统。整个系统将功率部分和控制部分分开，功率部分由适配器构成，控制部分来完成充电管理和各种保护功能。该系统能够实现对不同充电电流的锂电池设备快充，并具有缩短开发周期、降低系统成本特征。

Abstract: In view of the current fast charging demand for lithium ion batteries in mobile devices such as smart phones and tablet computers, and the output characteristics of current in different charging systems cannot meet the requirements of fast charging. This paper designs a variable current charging system for lithium batteries. The system including the power and control part, power part is consisting of adapters, the control part is for charge program and protection functions. The system can achieve fast charge for a various charge current lithium battery device, and has char-acteristics of shortened development cycle, reduced system cost.