Overloss coefficient in magnetic laminations during PWM supply voltage

The idea of presented method based on the analytical solution of Maxwell\´s equations in the lamination material was described by the author in the previous work [Zakrzewski, K., 1970], taking into account approximation of constitutive static hysteresis loop by elliptic form of the function B = f(H). In previous elaborated formula, for new isotropic and anisotropic materials it is needed to introduce so called "anomaly coefficient" A₀ deduced from comparison of measured and calculated value of power losses in arbitrary frequency for assumed induction. It is possible to enlarge this method for estimation of loss increase generated by PWM voltage supply in magnetic laminations. The overloss coefficient will be introduced.