Result Details

Potential Worst-case System for Testing EMI Filters Tested on Simple Filter Models

DŘÍNOVSKÝ, J.; SVAČINA, J.; RAIDA, Z. Potential Worst-case System for Testing EMI Filters Tested on Simple Filter Models. Radioengineering, 2008, vol. 17, no. 3, p. 15-18. ISSN: 1210-2512.
Type
journal article
Language
English
Authors
Dřínovský Jiří, Ing., Ph.D., UREL (FEEC)
Svačina Jiří, prof. Ing., CSc., UREL (FEEC)
Raida Zbyněk, prof. Dr. Ing., UREL (FEEC)
Abstract

This paper deals with the approximate worst-case test method for testing the insertion loss of the EMI filters. The systems with 0.1 ohms and 100 ohms impedances are usually used for this testing. These systems are required by the international CISPR 17 standard. The main disadvantage of this system is the use of two impedance transformers. Especially the impedance transformer with 0.1 ohms output impedance is not easy to be produced. These transformers have usually narrow bandwidth. This paper discusses the alternative system with 1 ohm and 100 ohms impedances. The performance of these systems was tested on several filters' models and the obtained data are depicted, too. The performance comparison of several filters in several systems is also included. The performance of alternate worst-case system is discussed in the conclusion.

Keywords

Electromagnetic compatibility EMC, EMI mains filter, insertion loss, impedance termination, filter model, modified nodal voltage method, current compensated inductors.

Published
2008
Pages
15–18
Journal
Radioengineering, vol. 17, no. 3, ISSN 1210-2512
Publisher
UREL
Place
Brno
BibTeX 
@article{BUT47660,
  author="Jiří {Dřínovský} and Jiří {Svačina} and Zbyněk {Raida}",
  title="Potential Worst-case System for Testing EMI Filters Tested on Simple Filter Models",
  journal="Radioengineering",
  year="2008",
  volume="17",
  number="3",
  pages="15--18",
  issn="1210-2512"
}
Departments
Department of Radio Electronics (UREL)
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