The Impact of Gate Driver Loop Output Capability and Stray Parameters on Switching Performance

Abstract:
Each power switches needs one driver circuit, which is necessary but easy to ignore. Gate driver circuit has very important impact on power devices switching process, and two parameters are analyzed in this paper, driver circuit’s output capability and stray parameters. SiC MOSFET turn off process is shown as a basic and the factor and impact of capability and stray parameters are followed. Theoretical analysis and simulation results are executed to verify the two points. Gate driver loop design tips are listed to give some suggestions.