And according to actual need a plurality of different numerical samplingvoltage can be created, thus to achieve the purpose of different depth of discharge.
并且可根据实际需要再增设多个不同数值的取样电压，以实现不同深度放电的目的。
2
This paper expounds the fundamental principles of vector voltage measurement using a sampling method, and deduces the calculating formula.
本文阐述了用取样技术测量矢量电压的基本原理，推导了计算公式。
3
In part of hardware design, voltage and current sampling circuit, IGBT driving circuit communication and man-machine interface circuit are designed.