Abstract

In this work, four different snubber solutions for an Auxiliary Resonant Commutated Pole (ARCP) converter with an auxiliary thyristor are evaluated. The first two solutions are an RC snubber and a variation thereoff where the RC snubber losses are reduced by employing diodes for limiting the voltage overshoot. Two other concepts are a novel lossless dV/dt clamp snubber circuit and a low-loss RC snubber circuit, which has good fault tolerance and improved efficiency. This solution is implemented using SiC Merged P-i-N Schottky (MPS) diodes, which enables a cost-effective implementation with a high surge current capability on a small total chip area. Measurement results confirm that the snubbers limit the voltage overshoot and that the efficiency of the proposed low-loss RC snubber circuit is a substantial improvement over a conventional RC snubber.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.