IS16.5 - Compact GaN-Based 5 kW Four-Level Totem-Pole PFC Converter

Wednesday, March 25, 2026

3:40 PM - 4:05 PM CT

Location: 207

Industry Session Presenter(s)

Marco Palma, MSCee MBA (he/him/his)

Efficient Power Conversion

Presentation

Co-Author(s)

Michael A. de Rooij, PhD (he/him/his)

Efficient Power Conversion Corporation
Andrea Nicotera (he/him/his)

Efficient Power Conversion
FM

Francesco Musumeci (he/him/his)

Efficient Power Conversion
CL

Carlo Lombardi (he/him/his)

Microchip Technology
Andreas Reiter (he/him/his)

Microchip Technology

This presentation is about a compact flying capacitor multilevel (FCML) totem-pole bridgeless power-factor correction (PFC) rectifier for high-efficiency and high-density switching power supplies. It is based on a 5 kW four-level FCML totem-pole PFC topology employing 200 V GaN devices. Compared to a “standard” two-level GaN FET-based PFC, the presented GaN totem-pole PFC utilizes only one single-stage EMI filter, allowing it to fit in the same cubic volume used for conventional 3 kW power supplies. The PFC is designed to follow the latest Open Compute Project (OCP) guidelines.