Model of power soft MnZn ferrites, including temperature effects

This paper describes a model for simulating the behavior of soft MnZn, This model takes into account both hysteresis and dynamic phenomena. The temper ature is introduced using behavioral laws. In fact, the following model req uires only few parameters. It estimates iron losses and characteristics, su ch as B(H), phi>(*) over bar * (t), and the induced electromotive force. Th e obtained results are compared with measured data for three soft MnZn ferr ites currently used in power electronics. The comparison found good agreeme nt in a wide range of operating frequencies for temperatures ranging from 4 0 to 140 degreesC.