Interleaved, Switched Inductor and High-Gain Wide Bandgap Based Boost Converter Proposal

Many applications (electric vehicles, renewable energies, low-voltage DC grids) require simple, high-power density and low-current ripple-boost converters. Traditional step-up converters are limited when large transformation ratios involved. In this work is proposed a converter that brings together the characteristics of high gain, low ripple, density. From proposal, mathematical analysis its operation first performed, including static transfer function, stress components, voltage current ripples. Furthermore, it provides design example for an application Vin = 48 V to Vo 270 500 W. For implementation, two different wide bandgap (WBG) semiconductor models have been used, hybrid GaN cascodes SiC MOSFETs. Finally, experimental results produced prototypes shown, discussed.