Performance evaluation of SiC based bidirectional dc-dc buck-boost converter operating in CCM using temperature-dependent L3 spice model

摘要

Wide-band gap devices are gaining popularity in high-power, high-temperature applications such as hybrid/full electric vehicles. A 27 kW synchronous bidirectional pulse-width modulated (PWM) dc-dc buck-boost converter operating in continuous conduction mode (CCM) is designed. The designed converter is tested using Silicon Carbon (SiC) and Silicon (Si) devices at different temperatures using LTSpice simulations. Steady-state as well as switching transition performances are evaluated and compared for converters using SiC and Si devices.