动力锂电池组充放电智能管理系统

Intelligent management system for lithium-ion power battery pack charging and discharging

提出了一种全新的动力锂电池组充放电智能管理系统,以ISL9216、ISL9217为模拟前端(AFE),ATmega32为控制芯片,MAX1033为辅助锂电池电压采集IC,DS18B20为单节锂电池温度传感器,成功地实现了一个14节锂电池串联动力锂电池组的充放电过电流保护和放电时短路电流保护,充放电循环次数记录,单节锂电池电压监测,电池组温度监测以及高达200mA平衡电流的快速电量平衡等功能,具有体积小,成本低,精度高,反应快,电路简洁等优点。

In this article, it proposes a new intelligent management system for lithium-ion power battery pack charging and discharging, which is composed of multi-cell Li-ion battery pack analog front ends ISL9216 and ISL9217, 8-bit microcontroller ATmega32, serial 14-bit ADCs MAX1033 and 1-wire digital thermometer DS18B20. It is successful in achieving several significant functions in this pack, which is combined with 14 series connected cells, such as over current protection, short circuit protection, single cell voltage and temperature monitoring, pack cycle account and cell balancing, etc. Compared to previous methods, it has a few outstanding advantages, for instance, higher resolution, less cost, smaller size, faster reaction and simpler circuitry, etc.