Input DM EMI filter design of interleaved CRM Boost PFC converter with coupled inductor

Author

Yang, Fei ; Ruan, Xinbo ; Ji, Qing ; Ye, Zhihong

Author_Institution

Dept. of Autom. Coll., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

2614

Lastpage

2621

Abstract

The interleaved Boost power factor correction (PFC) converter operating in critical current mode (CRM) features high input power factor, high efficiency and small magnetic components. If the inductors are coupled, the turns number can be reduced, but the input current ripple is increased. This paper discusses the two-phase interleaved CRM Boost converter with an inversely coupled inductor. The coupling effect on the input differential mode (DM) electromagnetic interface (EMI) filter is analyzed and the relations between input current ripple and DM noise are presented. The worst case of DM noise can be obtained by analyzing the input current ripple and experimental results verify the conclusions.

Keywords

electromagnetic interference; inductors; interference suppression; power convertors; power factor correction; DM noise; EMI filter; PFC; boost converter; coupled inductor; critical current mode; differential mode; electromagnetic interface; interleaved CRM converter; magnetic components; power factor correction; Couplings; Delta modulation; Electromagnetic interference; Inductance; Inductors; Power harmonic filters; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6064118

Filename

6064118