Publication detail

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

DŘÍNOVSKÝ, J. SVAČINA, J. RAIDA, Z.

Original Title

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

English Title

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

Type

journal article - other

Language

en

Original 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.

English 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.

RIV year

2008

Released

05.09.2008

Publisher

UREL

Location

Brno

Pages from

15

Pages to

18

Pages count

4

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",
  annote="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.",
  address="UREL",
  chapter="47660",
  institution="UREL",
  journal="Radioengineering",
  number="3",
  volume="17",
  year="2008",
  month="september",
  pages="15--18",
  publisher="UREL",
  type="journal article - other"
}