锂电池组全电压检查方法研究

Research on Full Voltage Measuring Method of Li-ion Battery

针对锂电池组应用中的安全性问题,探究锂电池组整体电压测量方法。该方法采用高共模电压差分放大器INA117AM与超低噪声精密仪器放大器OPA27AJ相结合,对锂电池组的全电压进行实时检测保护。实验结果表明,该方法能够精确测量微弱差分电压,测量误差小,精度高,实现对锂电池组电压实时检测。该方法操作简单、直观,使用方便,具有结构简单,测量精度高,且能消除纹波、噪声和静电电流影响等优点,能够有效保证锂电池组应用中的可靠性,能够对锂电池组的安全使用提供技术和方法参考。

Aiming at the security problems in application of lithium-ion battery pack,explore the full voltage measurement of lithium battery.The method using the combination of high common-mode voltage difference amplifier INA117 AM and ultra low noise precision instrument amplifier OPA27 AJ,implementation for real-time detection of lithium battery voltage.The experimental results show that this method can accurately measure the weak difference voltage,measurement error is small,high precision,realize real-time detection for lithium battery pack full voltage protection.The method is simple,intuitive and easy to use,it has a simple structure,high measurement precision and can eliminate the ripple,noise and static current influence etc.,and can effectively guarantee the lithium-ion batteries used in reliability,can use the safety of the lithium battery provides technology and methods for reference.