1 Introduction

PFC shapes the input current of the power supply so that it is synchronized with the mains voltage, in order to

maximize the real power drawn from the mains. In a perfect PFC circuit, the input current follows the input

voltage as if it is a pure resistor, without any input current harmonics or phase shift.

This document is intended to demonstrate the design and practical results of an 800 W 65 kHz platinum server

PFC demo board based on Infineon Technologies devices including power semiconductors, non-isolated gate

drivers and an analog controller for the PFC converter as well as a flyback controller for the auxiliary supply.