IEC 60205:2016
(Main)Calculation of the effective parameters of magnetic piece parts
Calculation of the effective parameters of magnetic piece parts
IEC 60205:2016 specifies uniform rules for the calculation of the effective parameters of closed circuits of ferromagnetic material. This edition includes the following significant technical changes with respect to the previous edition:
a) addition, in 5.1, of the drawing of a core of rectangular cross-section with chamfer;
b) addition, in 5.1.3, of the equation of a core of rectangular cross-section with chamfer;
c) equations in 5.1.4, 5.6, 5.7, 5.8, 5.9, 5.11, 5.12, 5.14 are amended or replaced;
d) drawings RM6-S and RM6-R in 5.7 are amended;
e) addition of EC-cores, see 5.15.
The contents of the corrigendum of July 2018 have been included in this copy.
Calcul des paramètres effectifs des pièces magnétiques
L'IEC 60205:2016 définit des règles uniformes pour le calcul des paramètres effectifs des circuits fermés de matériaux ferromagnétiques.
La présente édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) ajout, en 5.1, du dessin d’un noyau de section transversale rectangulaire avec chanfrein;
b) ajout, en 5.1.3, de l’équation d’un noyau de section transversale rectangulaire avec chanfrein;
c) les équations en 5.1.4, 5.6, 5.7, 5.8, 5.9, 5.11, 5.12, 5.14 sont amendées ou remplacées;
d) les dessins RM6-S et RM6-R en 5.7 sont amendés;
e) ajout de noyaux EC, voir 5.15.
Le contenu du corrigendum de juillet 2018 a été pris en considération dans cet exemplaire.
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IEC 60205 ®
Edition 4.0 2016-11
INTERNATIONAL
STANDARD
Calculation of the effective parameters of magnetic piece parts
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IEC 60205 ®
Edition 4.0 2016-11
INTERNATIONAL
STANDARD
Calculation of the effective parameters of magnetic piece parts
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.100.10 ISBN 978-2-8322-3775-5
– 2 – IEC 60205:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions. 7
4 Basic rules applicable to this standard . 7
5 Formulae for the various types of cores . 8
5.1 Ring cores . 8
5.1.1 Ring cores in general . 8
5.1.2 For ring cores of rectangular cross-section with sharp corners . 9
5.1.3 For ring cores of rectangular cross-section with an appreciable average
rounding radius r . 9
5.1.4 For ring cores of rectangular cross-section with appreciable chamfer c . 9
5.1.5 For ring cores of trapezoidal cross-section with sharp corners . 9
5.1.6 For ring cores of trapezoidal cross-section with an appreciable average
rounding radius r . 9
5.1.7 For ring cores of cross-section with circular arc frontal sides . 9
5.2 Pair of U-cores of rectangular section . 10
5.3 Pair of U-cores of rounded section . 10
5.4 Pair of E-cores of rectangular section . 11
5.5 Pair of ETD/EER-cores . 12
5.6 Pair of pot-cores . 14
5.7 Pair of RM-cores . 16
5.8 Pair of EP-cores . 20
5.9 Pair of PM-cores . 21
5.10 Pair of EL-cores . 23
5.11 Pair of ER-cores (low profile) . 25
5.12 Pair of PQ-cores . 28
5.13 Pair of EFD-cores. 31
5.14 Pair of E planar-cores . 33
5.15 Pair of EC-cores . 34
Bibliography . 37
Figure 1 – Ring cores . 8
Figure 2 – Pair of U-cores of the rectangular section . 10
Figure 3 – Pair of U-cores of rounded section . 11
Figure 4 – Pair of E-cores of rectangular section . 12
Figure 5 – Pair of ETD/EER-cores . 13
Figure 6 – Pair of pot-cores . 14
Figure 7 – Pair of RM-cores . 18
Figure 8 – Pair of EP-cores . 20
Figure 9 – Pair of PM-cores . 22
Figure 10 – Pair of EL-cores . 23
Figure 11 – PLT(plate)-cores . 24
Figure 12 – Pair of ER-cores (low profile) . 26
Figure 13 – PLT(plate)-cores . 26
Figure 14 – Pair of PQ-cores . 28
Figure 15 – PQ-cores . 29
Figure 16 – PLT(plate)-cores . 29
Figure 17 – Pair of EFD-cores . 31
Figure 18 – Pair of E planar-cores . 33
Figure 19 – PLT(plate)-cores . 33
Figure 20 – Pair of EC-cores . 35
– 4 – IEC 60205:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CALCULATION OF THE EFFECTIVE PARAMETERS
OF MAGNETIC PIECE PARTS
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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International Standard IEC 60205 has been prepared by IEC technical committee 51: Magnetic
components, ferrite and and magnetic powder materials.
This fourth edition cancels and replaces the third edition published in 2006 and
Amendment 1:2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition, in 5.1, of the drawing of a core of rectangular cross-section with chamfer;
b) addition, in 5.1.3, of the equation of a core of rectangular cross-section with chamfer;
c) equations in 5.1.4, 5.6, 5.7, 5.8, 5.9, 5.11, 5.12, 5.14 are amended or replaced;
d) drawings RM6-S and RM6-R in 5.7 are amended;
e) addition of EC-cores, see 5.15.
The text of this standard is based on the following documents:
FDIS Report on voting
51/1149/FDIS 51/1156/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific document. At this date, the document will be
reconfirmed,
withdrawn,
...
IEC 60205 ®
Edition 4.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Calculation of the effective parameters of magnetic piece parts
Calcul des paramètres effectifs des pièces magnétiques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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IEC 60205 ®
Edition 4.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Calculation of the effective parameters of magnetic piece parts
Calcul des paramètres effectifs des pièces magnétiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-9263-1
– 2 – IEC 60205:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Basic rules applicable to this standard . 7
5 Formulae for the various types of cores . 8
5.1 Ring cores . 8
5.1.1 Ring cores in general . 8
5.1.2 For ring cores of rectangular cross-section with sharp corners . 9
5.1.3 For ring cores of rectangular cross-section with an appreciable average
rounding radius r . 9
5.1.4 For ring cores of rectangular cross-section with appreciable chamfer c . 9
5.1.5 For ring cores of trapezoidal cross-section with sharp corners . 9
5.1.6 For ring cores of trapezoidal cross-section with an appreciable average
rounding radius r . 9
5.1.7 For ring cores of cross-section with circular arc frontal sides . 9
5.2 Pair of U-cores of rectangular section . 10
5.3 Pair of U-cores of rounded section . 10
5.4 Pair of E-cores of rectangular section . 11
5.5 Pair of ETD/EER-cores . 12
5.6 Pair of pot-cores . 14
5.7 Pair of RM-cores . 16
5.8 Pair of EP-cores. 20
5.9 Pair of PM-cores . 21
5.10 Pair of EL-cores . 23
5.11 Pair of ER-cores (low profile) . 25
5.12 Pair of PQ-cores . 28
5.13 Pair of EFD-cores . 31
5.14 Pair of E planar-cores . 33
5.15 Pair of EC-cores . 34
Bibliography . 37
Figure 1 – Ring cores . 8
Figure 2 – Pair of U-cores of the rectangular section . 10
Figure 3 – Pair of U-cores of rounded section . 11
Figure 4 – Pair of E-cores of rectangular section . 12
Figure 5 – Pair of ETD/EER-cores . 13
Figure 6 – Pair of pot-cores . 14
Figure 7 – Pair of RM-cores . 18
Figure 8 – Pair of EP-cores . 20
Figure 9 – Pair of PM-cores . 22
Figure 10 – Pair of EL-cores . 23
Figure 11 – PLT(plate)-cores . 24
Figure 12 – Pair of ER-cores (low profile) . 26
Figure 13 – PLT(plate)-cores . 26
Figure 14 – Pair of PQ-cores . 28
Figure 15 – PQ-cores . 29
Figure 16 – PLT(plate)-cores . 29
Figure 17 – Pair of EFD-cores . 31
Figure 18 – Pair of E planar-cores . 33
Figure 19 – PLT(plate)-cores . 33
Figure 20 – Pair of EC-cores . 35
– 4 – IEC 60205:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CALCULATION OF THE EFFECTIVE PARAMETERS
OF MAGNETIC PIECE PARTS
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or
...
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