A simple method to determine dynamic hysteresis loops of soft magnetic materials

An approach to plotting hysteresis curves of soft magnetic materials using a personal computer assisted measuring system is presented. The resulting hysteresis curves provide enough detail to allow determination of the parameters required for a simulation with PSPICE (Jiles-Atherton model) or the Hodgdon/Carpenter model. The magnetic core loss for different materials and core shapes can be determined at frequencies up to 200 kHz and at voltages up to 500 V.