Time domain modelling of soft ferrite inductors for power converters applications In this paper, we discuss about the accuracy and robustness of a time domain model for the analysis of soft ferrite core inductors, particularly applicable in the design of power converters. The model is based on the division of the magnetic field into three components, which are suitably defined on the basis of the static and dynamic behavior of a magnetic material and are identified by experimental data. A detailed description of the model and the obtained results are presented in the paper. The results obtained are also compared with the ones calculated from different approaches, known in literature. The model is applied to the prediction of losses and peak current of a family of ring shape core inductors.

Pulse Compression Modeling for Voltage Driven Ferrite Inductors in Moderate Saturation The volume and weight of the Switch Mode Power Supplies can be significantly reduced by using ferrite magnetic core inductors in a slightly saturated region. Accurate models of their behavior are needed to design efficient devices. The possibility of modelling the nonlinear system when the device is voltage driven is mainly of practical importance, since in the case of implementation of the procedure in hardware the sources that are easiest to find are assimilable to voltage generators. This paper proposes and verifies the quality of the models based on Hammersteintype structures to represent the nonlinear behavior in the case of voltagedriven inductors.