智能LiMn_2O_4材料电特性测试仪的充放电模块设计

Design of Charging and Discharging Module for Electronic Character Instrument with Intelligent LiMn_2O_4 Material

为了研究材料的电特性,设计了一种智能LiMn2O4材料电特性测试仪.主要介绍了硬件核心单元充放电模块的设计,根据锂离子电池的特点采用二阶段法充电.系统采用继电器对电路的充放电状态进行切换,采用多路开关4053对电池通道进行切换,其两组开关在恒流充电与恒压充电电路中接入不同的位置,从而实现了采用恒流转恒压的充电方式.

In order to study the electronic character of material,a kind of electronic character instrument with intelligent LiMn2O4 material is designed.The schematic diagram of charging and discharging,which is the key module of the hardware is presented.The two stage charging way is adopted based on the character of lithium battery.Relay is taken to change the state of charging and discharging,switch Max4053 is used to exchange the passage of battery,and the two switch of Max4053 is linked in different place in con...