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Increasing Power Density using Low Voltage eGaN FETs in High-Voltage Sever Power Supplies – Part 2: The Multi-Level Totem-Pole PFC converter

Increasing Power Density using Low Voltage eGaN FETs in High-Voltage Sever Power Supplies – Part 2: The Multi-Level Totem-Pole PFC converter

In part one of this series, we gave a brief introduction to the multi-level totem-pole PFC topology and how it can improve power density in server applications. In this second part we dive deeper into the design details of such a solution and present experimental results for a 240 VAC input to 400 VDC output, 5 kW PFC system.

Bodo’s Power Systems
May 2025
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