This paper introduces some ways based on the linear analog light-coupler to measure the voltage of single battery in the series-wound Vehicle NI-MH Battery, and designs a battery management hardware system and practical voltage measurement circuit.

• 本文设计了一种电池管理硬件系统，并介绍几种基于隔离光耦的电压测量电路，设计出一种实用的测量电路。