Modeling Dynamic Hysteresis Curves in Amorphous Magnetic Ribbons

A description of magnetic hysteresis is important for the prediction losses in soft materials. In this paper, a viscosity-type equation used to describe dynamic loops an amorphous ring core symmetric excitation, as prescribed by international standards. The value exponent appearing viscosity-based can be assumed constant if maximum induction away from saturation value. shape variation magnetization curves due eddy currents different time and space scales. Modeling carried out various excitation frequencies amplitudes. discrepancies between experimental modeled (and also losses) are acceptable wide range frequency induction. paper indicates that effects, mostly generated conductive material, play role energy dissipation at increased frequencies. modeling results might interesting designers circuits.