High-frequency small-signal model of ferrite core inductors

被引：74

作者：

Kazimierczuk, MK ^{[1
]}

Sancineto, G

Grandi, G

Reggiani, U

Massarini, A

机构：

[1] Wright State Univ, Dept Elect Engn, Dayton, OH 45435 USA

[2] Univ Bologna, Dept Elect Engn, I-40136 Bologna, Italy

[3] Sci Univ Modena & Reggio Emilia, Dept Engn, I-41100 Modena, Italy

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

circuit modeling; coils; eddy currents; ferrite inductors; frequency response; magnetic cores; magnetic losses; skin effect;

D O I：

10.1109/20.799066

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A circuit model of ferrite core inductors is presented. The behavior of the model parameters versus frequency is considered. The total power loss in inductors consisting of the winding resistance loss and the core loss, is modeled by a frequency-dependent equivalent series resistance. The total inductance given by the sum of the main inductance and the leakage inductance is obtained as a function of frequency. In order to study the core equivalent resistance and main inductance versus frequency, the magnetic field distribution in the core is derived from Maxwell's equations for a long solenoid. The complex permeability and permittivity of the ferrite core are introduced in the electromagnetic field equations, Experimental results are also given.

引用

页码：4185 / 4191

页数：7

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