功率电感损耗的综合SPICE模型

Stefan Ehrlich, Christopher Joffe, Hannes Thielke, Matthias Leinfelder, M. März
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引用次数: 3

摘要

本文提出了一个综合的功率电感的SPICE模型,包括绕组损耗、软磁铁氧体材料内的涡流损耗、磁滞损耗以及自共振。通过对著名的Steinmetz迟滞损失方程的自适应,考虑了硬开关拓扑(如DC/DC转换器或PFC级)的非正弦波形。在小信号测量的基础上,通过一种算法对功率电感的小信号阻抗进行建模,使其适应于等效电路。该模型的突出优点是数据表参数生成简单,阻抗测量一次,精度好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comprehensive SPICE Model for Power Inductor Losses
This paper presents a comprehensive SPICE model of a power inductor including winding losses, eddy current losses within a soft magnetic ferrite material and hysteresis losses as well as the self-resonance. With an adaption of the well-known Steinmetz’s equation for hysteresis losses, non-sinusoidal waveforms of hard-switching topologies such as DC/DC converters or PFC stages are taken into account. The small-signal impedance of the power inductor is modeled on basis of small-signal measurements that are adapted to an equivalent circuit by an algorithm. Outstanding advantages of the model are the simple generation out of data sheet parameters and a single impedance measurement as well as a good accuracy.
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