Study on periodic and non periodic frequency modulation techniques for EMI suppression in SMPS

Author

Mohseni, Sina ; Roomizadeh, Arash

Author_Institution

Dept. of Eng. & Technol., Univ. of Isfahan (U.I.), Isfahan, Iran

fYear

2011

fDate

16-17 Feb. 2011

Firstpage

615

Lastpage

619

Abstract

Switching Mode Power Supplies (SMPS) usually emit Electromagnetic Interferences (EMI) at switching frequency and its harmonics. There are many different methods to reduce EMI interferences made by switching converters. In this paper different kinds of spread spectrum EMI reduction methods have been tested. Unlike traditional proper tuned filters used for this purpose, PWFM technique is a reliable and cheap method which could be used in small high frequency converters using in communication circuits such as cellular phones and etc.

Keywords

electromagnetic interference; frequency convertors; frequency modulation; switched mode power supplies; EMI suppression; SMPS; electromagnetic interference; frequency converter; non periodic frequency modulation technique; periodic frequency modulation technique; switching converter; switching mode power supply; Chaos; Clocks; Converters; Electromagnetic interference; Frequency modulation; Harmonic analysis; EMI Reduction; PWFM Modulation; Spread Spectrum Technique;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drive Systems and Technologies Conference (PEDSTC), 2011 2nd

Conference_Location

Tehran

Print_ISBN

978-1-61284-422-0

Type

conf

DOI

10.1109/PEDSTC.2011.5742493

Filename

5742493