A Systematic Approach to the Conducted EMI Suppression in Plasma Cutting Power Supply

Author

Esmaeli, Abdolreza ; Ke, Zhao ; Li, Sun

Author_Institution

Electr. Eng. & Autom. Sch., Harbin Inst. of Technol.

fYear

2005

fDate

24-25 Dec. 2005

Firstpage

1

Lastpage

6

Abstract

Electromagnetic interference (EMI) filter design aspect of high-density plasma cutting power supply is developed. Converter components are accurately modeled, with parasitic elements extracted to reveal their impacts on the EMI noises. Circuit simulations are used to analyze and minimize the EMI noises. Conducted EMI noise measurement and filter design of this power supply has been achieved while successfully satisfying the FCC class B limits in the frequency range from 150 kHz to 30 MHz. The analyses and experiment results show that the designed filter guarantees that the required attenuation is achieved

Keywords

circuit simulation; electromagnetic interference; interference filters; interference suppression; noise measurement; plasma applications; power filters; switched mode power supplies; 150 kHz to 30 MHz; EMI filter design; FCC class B limits; SMPS; circuit simulations; conducted EMI suppression; converter components; electromagnetic interference; high-density plasma cutting power supply; noise measurement; parasitic elements; Circuit noise; Circuit simulation; Electromagnetic interference; FCC; Filters; Noise measurement; Plasma measurements; Plasma simulation; Power supplies; Power system modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

9th International Multitopic Conference, IEEE INMIC 2005

Conference_Location

Karachi

Print_ISBN

0-7803-9429-1

Electronic_ISBN

0-7803-9430-5

Type

conf

DOI

10.1109/INMIC.2005.334409

Filename

4133424