I. Introduction
Nonsinusoidal voltage waveforms are ubiquitously found in magnetic components employed in power electronics. Besides the distortion engendered by the nonlinear response of the material, a variety of pulsed and rectangular voltages are imposed in electrical machine cores and in various types of inductive devices. In order to find the magnetic components and the design providing the best tradeoff between costs and performance, a method to predict the magnetic losses for realistic working conditions should therefore be devised. A case in point is one of symmetric and asymmetric triangular-trapezoidal induction waveforms, a typical regime imposed to the inductive components found in Switch Mode Power Supplies, converters, and permanent magnet motors. The buck dc–dc converter working in continuous mode provides a fitting example [1]. This is a standard device used to supply a load with a dc voltage lower than the input dc voltage , where the employed inductor is excited by an asymmetric sawtooth current.