电感器磁芯材料特性的参数分析法

The Parameter Analysis Method of the Material Performance of the Inductor Ferrite Core

给出EMI电源滤波器用电感器的高频等效电路模型,并提出一种获得磁芯材料特性的参数分析方法。通过测量磁性磁芯电感器的插入损耗,进而得出材料的有效磁导率。对典型的罐形磁芯电感器进行测试、分析与计算,得出了有效磁导率随频率变化曲线,并分析了误差产生的原因。

The inductance's high frequency equivalent circuit model is given, and the parameter analysis method is provided from which the material performance of the ferrite core can be obtained. By testing the Insert Loss of the inductance with ferrite core, and then can obtain the effective magnetic permeability. After Testing, analyzing and calculating the inductance with the typical pot core, the curve about the magnetic permeability varying with the frequency is given, and the reason why the errors are produced is analyzed.