锂电池组供电的高频高压充电电源共模干扰抑制问题研究

Research on the Common-Mode Interference Suppression of High Frequency High Voltage Capacitor Charging Power Supply Using Lithium Battery

介绍了一种以锂电池供电的高频高压电容器充电电源的结构,分析了当锂电池负极悬浮时电路产生的共模干扰影响检测电路的机理,并结合工程经验提出了解决方案。实验表明,该方案能够较快地减小共模干扰对检测电路的不良影响。

This article introduced the structure of the high frequency high voltage capacitor charging power supply u- sing lithium battery, analyzed the mechanism that when the lithium battery cathode suspension, the common-mode interfer- ence generated by the circuit effects detection circuit and combined the engineering experience, put forward the solutions. Experiments showed the solutions can rapidly reduce the negative impact of common mode interference to the detection circuit.