Radiated and conducted EMI emissions in switch mode power supplies (SMPS): sources, causes and predictions

Author

Nagrial, M.H. ; Hellany, A.

Author_Institution

Power Conversion & Intelligent Motion Control Res. Group, Univ. of Western Sydney, Australia

fYear

2001

fDate

2001

Firstpage

54

Lastpage

61

Abstract

Switch mode power supplies have become the major source in the deterioration of our electromagnetic environment. This paper aims to investigate, in general terms, the issue of electromagnetic interference (EMI) in switch mode power supplies (SMPSs). The paper also points out the sources and causes of radiated and conducted emission in SMPS. In addition, this paper proposes a simulation method to determine the level of radiated and conducted noise produced by SMPSs.

Keywords

bridge circuits; electromagnetic interference; power convertors; switched mode power supplies; 280 W; 300 kHz; SMPS; conducted EMI emissions; electromagnetic environment; half bridge converter; radiated EMI emissions; switch mode power supplies; Circuits; Electromagnetic interference; Electromagnetic radiation; Noise level; Power transistors; Pulse width modulation; Pulsed power supplies; Regulators; Switched-mode power supply; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Multi Topic Conference, 2001. IEEE INMIC 2001. Technology for the 21st Century. Proceedings. IEEE International

Print_ISBN

0-7803-7406-1

Type

conf

DOI

10.1109/INMIC.2001.995314

Filename

995314