Abstract
A methodology to develop subcircuit models of magnetic cores with hysteresis using analog behavioral modeling (ABM) in PSpice is presented. A subcircuit equivalent to the Jiles-Atherton model is developed to model the static ferromagnetic hysteresis. The Hammerstein configuration, which includes a nonlinear static block followed by a linear dynamic block, is further employed to capture the rate dependencies. The nonlinear static block is realized by the Jiles-Atherton model, and linear dynamic block by a low-pass filter. Interface subcircuits are provided to couple the voltage induced by the magnetic flux to the winding model of an inductor or a transformer. The hysteresis-related waveforms predicted by the developed inductor and transformer subcircuit models have been verified experimentally.
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