Simulation of magnetic hysteresis in electronic circuits containing ferromagnetic or ferritic core inductors

摘要

Electronic circuits containing ferromagnetic and ferritic core inductors are inductors are simulated by using a new dynamic Preisach model. This dynamic Preisach model is based in on the generalized-moving Preisach model and is able to describe accurately time-dependent magnetization processes in ferritic and ferromagnetic materials. The model makes use of the mean-field approximation and has the advantage that it can be easily implemented in circuit applications. The numerical implementation of the new model is discussed in detail. Sample numerical results obtained for resistor-inductor and resistor-inductor-capacitor circuits operating at different frequencies are presented and compared with experimental data.