CoolGaN Totem-Pole PFC Design Guide

This document is a design guide for a gallium nitride (GaN) Power Factor Correction (PFC) totem-pole converter. It includes equations for design and power losses, a selection guide for semiconductor devices and passive components, and a totem-pole PFC controller using ICE3PCS01G. Additionally, it presents a 2500 W design example with calculated and experimental results. The intended audience for this guide is design engineers who aim to design a CoolGaN Continuous Conduction Mode (CCM) PFC totem-pole converter. The guide discusses the PFC stage in high-power applications such as telecom and data center server power supplies, emphasizing the efficiency and power density benefits of GaN-based totem-pole PFC. It outlines the operational modes of the totem pole during the AC-line cycle and compares it with classic boost PFC, highlighting the advantages of eliminating rectifier bridge losses. The document provides detailed methodologies for analysis and design, including experimental results and schematics.