Broadband Modeling of Magnetic Components With Saturation and Hysteresis for Circuit Simulations of Power Converters

A model of magnetic components is presented which includes saturation and static hysteresis and covers a wide frequency range. A dedicated setup measures the B-H curves for extraction of the model parameters and for model validation. The magnetic model is then represented as a spice circuit and is used in transient system simulations of power converters. Simulations and measurements of core losses and the filter performance of common mode chokes are discussed.