“…In this case too, a direct connection between excess loss and hysteresis loss is found. A detailed analysis of the residual role played by eddy currents in soft ferrites can be carried out by appropriate homogenization techniques [49,50] applied to the heterogeneous microstructure of the ferrite core, consisting of grains and inter-grain layers. This approach permits one, in particular, to determine the conditions associated with qualitatively different dynamical regimes, one where closed eddy current flow patterns are present inside each individual grain, and the other where eddy currents flow across inter-grain layers and generate patterns extending over the entire ferrite core.…”