In this paper a 5kW step-down converter for low-voltage high-current application is presented using normally-off SiC JFETs as high voltage power switches, operating with efficiency close to 98%. Different low voltage side rectification solutions and loss estimations are also presented. As results show higher power density and efficiency can be achieved in medium- or high-power DC-DC applications by replacing silicone power devices with SiC alternatives.
9781479901159, 9781479901142, 9781479901166
Proceedings of the 15th European Conference on Power Electronics and Applications, Epe 2013, 2013
European Conference on Power Electronics and Applications, EPE 2013