Battery electric quantity acquisition circuit and battery electric quantity monitoring system and method

• Main Authors: WANG JIN, SHI AIWEN, DU WENZHUO, LIU HUIFENG, ZHANG ZHIFENG, ZHANG ZHAOHUA, GONG XIANGCHENG, YANG YAN, ZHANG CHAO, LIANG YAOLIN
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a battery electric quantity acquisition circuit and a battery electric quantity monitoring system and method.The battery electric quantity acquisition circuit comprises a voltage division circuit, a current amplification circuit and a current acquisition circuit, the voltage division circuit is connected between the positive electrode and the negative electrode of a battery, the current amplification circuit is connected with the voltage division circuit, and the current acquisition circuit is connected with the current amplification circuit. And the current acquisition circuit is connected with the current amplification circuit. The current and the voltage of the battery are collected, integral operation is performed according to the current and the voltage, and the real-time dynamic electric quantity of the battery is obtained, so that the electric quantity condition of the battery can be accurately known in real time, an electric quantity monitoring basis is provided for control of