SiC MOSFETs: Application Benefits in Bridgeless PFCs and Beyond

Discover how silicon carbide MOSFETs enable unprecedented efficiency and thermal performance in bridgeless PFCs and DC-DC converters




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Watch the one-hour on-demand webinar to learn the basics of silicon carbide (SiC) MOSFET technology and how it is transforming performance in switched-mode power supplies.

The session will start with a focus on one of the most important blocks of many power converters, Power Factor Correction (PFC), supplementing the discussion with the results of performance testing in a bi-directional DC-DC converter. Next, we'll explore two bridgeless PFC topologies, the Vienna rectifier and totem-pole PFC.

We will demonstrate via experimental results and application examples how using silicon carbide increases efficiency and improves thermal performance in bi-directional DC-DC conversion. To conclude, you will be shown how to jumpstart development with SiC MOSFETs using our range of design resources and reference designs.

The on-demand webinar will cover:

  • The fundamentals of silicon carbide as a wide bandgap semiconductor
  • An introduction to PFC followed by a deep dive into bridgeless PFC topologies
  • Application examples and ST reference designs available for Vienna rectifier, totem-pole PFC, and bi-directional DC-DC power stages
  • The resources in our development ecosystem to help engineers design with SiC MOSFETs


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Jeffrey Fedison is a Senior Applications Engineer at STMicroelectronics specializing in discrete power products including silicon carbide power transistors. He holds a Ph.D. in Electrical Engineering and has co-authored more than 20 articles in technical journals and conference proceedings. With 8 U.S. patents, he has been involved in either power semiconductor device development or power circuit applications for the duration of his professional career.