Reconsideration of Energy Balance in Jiles–Atherton Model for Accurate Prediction of B–H Trajectories in Ferrites

Abstract

In this article, the energy balance equation in the original Jiles–Atherton model is revisited. In particular, the assumption that the energy stored in a lossy material is equal to that stored in a lossless material is removed. This modification results in more accurate prediction of $B$ – $H$ trajectories. A new approach to characterize material parameters based on resonant response is also set forth. Extensive experimental validation is provided and model parameters for several common materials are given.