AN2951 3千瓦的固定关断时间（FOT）功率因数校正

AN2951 3千瓦的固定关断时间（FOT）功率因数校正

AN2951
Application note

3 kW fixed-off-time (FOT) power factor correction

Introduction
In recent years, regulation in terms of electrical efficiency, electromagnetic noise, and
reliability of the electronic apparatus, in all the application fields, are pushing to use power
factor correction in almost all applications; from low power range to high power range, and
from industrial to domestic applications.
For this reason the design of a new PFC architecture is required to satisfy these new
priorities. The PFC must work from a fe