Publication detail

Estimation of the EMI Filter Circuitry from the Insertion Loss Characteristics

KEJÍK, Z. DŘÍNOVSKÝ, J. RŮŽEK, V.

Original Title

Estimation of the EMI Filter Circuitry from the Insertion Loss Characteristics

English Title

Estimation of the EMI Filter Circuitry from the Insertion Loss Characteristics

Type

journal article - other

Language

en

Original Abstract

The paper deals with the EMI filter models for the calculation of the insertion loss characteristics. The insertion loss is in fact the basic EMI filter property. Unfortunately it is not easy to precisely define and measure this parameter through the wide frequency range. The uncertainty of the potential impedance termination really complicates the measurements and also comparison of the performance of filters. The model with the spurious components is introduced in this paper. The procedure of creation of the model is also added up. The spurious components make with the real ones the resonance circuits. The resonance frequencies make the breakages in the insertion loss characteristic. Their resonance frequencies were identified by the analysis of equivalent circuits of the filter for both different measuring systems. The calculation of the values of spurious components, based on knowledge of resonance frequencies, is mentioned at the end of the paper.

English abstract

The paper deals with the EMI filter models for the calculation of the insertion loss characteristics. The insertion loss is in fact the basic EMI filter property. Unfortunately it is not easy to precisely define and measure this parameter through the wide frequency range. The uncertainty of the potential impedance termination really complicates the measurements and also comparison of the performance of filters. The model with the spurious components is introduced in this paper. The procedure of creation of the model is also added up. The spurious components make with the real ones the resonance circuits. The resonance frequencies make the breakages in the insertion loss characteristic. Their resonance frequencies were identified by the analysis of equivalent circuits of the filter for both different measuring systems. The calculation of the values of spurious components, based on knowledge of resonance frequencies, is mentioned at the end of the paper.

Keywords

Insertion loss, EMI filter, current compensated inductor, spurious component, MNVM, Modified Nodal Voltage Method.

RIV year

2010

Released

13.09.2010

ISBN

1210-2512

Periodical

Radioengineering

Year of study

19

Number

2

State

CZ

Pages from

313

Pages to

319

Pages count

7

Documents

BibTex


@article{BUT48882,
  author="Zdeněk {Kejík} and Jiří {Dřínovský} and Václav {Růžek}",
  title="Estimation of the EMI Filter Circuitry from the Insertion Loss Characteristics",
  annote="The paper deals with the EMI filter models for
the calculation of the insertion loss characteristics. The insertion
loss is in fact the basic EMI filter property. Unfortunately
it is not easy to precisely define and measure this
parameter through the wide frequency range. The uncertainty
of the potential impedance termination really complicates
the measurements and also comparison of the performance
of filters. The model with the spurious components
is introduced in this paper. The procedure of creation of the
model is also added up. The spurious components make with
the real ones the resonance circuits. The resonance frequencies
make the breakages in the insertion loss characteristic.
Their resonance frequencies were identified by the analysis
of equivalent circuits of the filter for both different measuring
systems. The calculation of the values of spurious components,
based on knowledge of resonance frequencies, is
mentioned at the end of the paper.",
  chapter="48882",
  journal="Radioengineering (IF 0,312)",
  number="2",
  volume="19",
  year="2010",
  month="september",
  pages="313--319",
  type="journal article - other"
}