Published

Engineering Sciences

Saturable Inductor Modelling in GaN FETs Based Synchronous Buck Converter

Published on - 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

Authors: Salvatore Musumeci, Luigi Solimene, Carlo Ragusa, Marco Palma, Olivier de La Barrière

See the publication on HAL DOI

This paper deals with the modelling of saturable inductors with ferrite core applied in a high frequency synchronous step-down converter, with GaN FETs as switches. The inductor current waveform is modeled and simulated under non-linear conditions, in order to evaluate the dynamic performances and the converter efficiency. The inductor current waveform is analyzed under different loads conditions at a fixed switching frequency. Furthermore, variable switching frequency simulations under fixed load conditions are carried out.