电源技术2013，Vol.37Issue(1)：41-42,160,3.
锂电池组单体电压检测系统设计
Lithium battery cell voltage detection system
崔张坤 1梁英 1龙泽 2董文 1段玲玲1
作者信息
- 1. 沈阳理工大学信息科学与工程学院,辽宁沈阳110159
- 2. 中国北方车辆研究所,北京100072
- 折叠
摘要
Abstract
A voltage measuring method of series Li-ion battery based on "flying capacitor" technology was put forward. The circuit consisted of MOSFET output optical coupler, differential operational amplifier and AD sampling circuit. A 15 series battery single cell voltage measurement circuit was provided, high voltage switch was used in AQS225R2S, differential op amp was used in OP4177, and AD sampling was done by the MSP430F169, and then the experimental and analysis results of 15 cell lithium-ion battery cell voltage measurement circuit was provided. The results show that the method has the advantages of little effect on the lithium-ion battery, high precision and small volume, and can be used to estimate SOC and balance battery pack, which can be applied in electric cars and lithium energy storage systems and other fields.关键词
电压检测/光电耦合器/差分运算放大器Key words
voltage detection/ optical coupler/ differential op amp分类
信息技术与安全科学引用本文复制引用
崔张坤,梁英,龙泽,董文,段玲玲..锂电池组单体电压检测系统设计[J].电源技术,2013,37(1):41-42,160,3.
