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We propose a calculation model for the analysis of the current waveform in ferrite power inductors subjected to large-signal square-wave voltage, a typical regime of present-day Switch Mode Power Supplies (SMPSs). This kind of problem is characterized by the non-linear response of the inductor across a wide range of current values, up to the limit of inductor saturation. Consequently, non-linear differential equations must be adopted in the description of the circuit. In this script, we solve the equations of the circuit through an effective iterative method, by which the current waveform is computed through successive approximations.
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Prof. Carlo Stefano Ragusa, Confirmed Associate Professor of Department of Energy, Politecnico di Torino, Italy
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Dr. Luigi Solimene, Phd candidate of Department of Energy, Politecnico di Torino, Italy
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