最坏情况下无源EMI滤波器的设计

Designing Passive EMI Filter under the Worst Circumstances

为了解决实际应用中的无源滤波器阻抗失配问题,首先从无源滤波器的基本设计原理出发,对无源EMI滤波器的设计进行了分析和讨论,并立足于理论基础,对其进行了较为详细的讨论和设计,应用匹配网络法,重点讨论了最坏情况下无源EMI滤波器的设计方法。最后对设计结果进行了仿真和分析,通过仿真结果对结论进行了验证。

In order to resolve the mismatch problem of passive filter, based on the fundamental design principle of the passive filter, the design of passive EMI filter is analyzed and discussed at first. Then, on the basis of theoretical foundation, more detailed and practical design are given in further. By using the method of matching network, the design of passive EMI filter under the worst circumstances is emphasized. Finally, the design result is emulated and analyzed. The conclusion is verified by simulation result.