RGSE-Based SPICE Model of Ferrite Core Losses

A SPICE model for estimating and simulating core losses of a ferrite magnetic device is presented. The approach is based on a proposed revised generalized Steinmetz equation (RGSE) and requires only the use of the Steinmetz coefficients and core geometry data. The letter presents a RGSE-based SPICE...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2018-04, Vol.33 (4), p.2825-2831
Main Authors: Abramovitz, Alexander, Ben-Yaakov, Shmuel
Format: Article
Language:English
Subjects:
Computer simulation
Core loss
Excitation
ferrite
Ferrites
ferromagnetic cores
Integrated circuit modeling
Magnetic cores
Magnetic devices
Mathematical model
Solid modeling
SPICE
Steinmetz equation (SE)
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Summary:A SPICE model for estimating and simulating core losses of a ferrite magnetic device is presented. The approach is based on a proposed revised generalized Steinmetz equation (RGSE) and requires only the use of the Steinmetz coefficients and core geometry data. The letter presents a RGSE-based SPICE simulation strategy that can both estimate and simulate the effect of the core losses on the circuit. Primary advantages of RGSE approach are that it does not require switching frequency data and is applicable to arbitrary excitation and not just sinusoidal excitation as the Steinmetz equation approximation does. RGSE model is also insensitive to dc bias, this is an improvement over the earlier model. Comparison of previously reported measured and calculated core loss values with the simulation results of the presented SPICE RGSE model shows excellent agreement in the sinusoidal case and good agreement in the rectangular pulse case.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2017.2762759