Trilogy of Magnetics: Design Guide for EMI Filter Design, SMPS & RF Circuits

827 Pages·2018·51.892 MB·English

by  Thomas Brander, Alexander Gerfer, Bernhard Rall, Heinz Zenkner

T R I L O G Y
OF MAGNETICS

T R I L O G Y
OF MAGNETICS
D E S I G N G U I D E
for EMI Filter Design,
SMPS & RF Circuits
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PUBLISHER
Würth Elektronik eiSos GmbH & Co. KG
Max-Eyth-Str. 1 · 74638 Waldenburg · Germany
Tel. [phone] · Fax [phone]
[e-mail] · www.we-online.com
REALISATION
Jana Haisch
AUTHORS
Dr. Thomas Brander // Alexander Gerfer // Bernhard Rall // Heinz Zenkner
ILLUSTRATIONS // MZ Dokuments ∙ 86156 Augsburg ∙ Germany
GRAPHIC DESIGN // DIE NECKARPRINZEN ∙ 74072 Heilbronn ∙ Germany
TYPE SETTING // Ideen im Kopf ∙ 75050 Gemmingen ∙ Germany
PDF REFINING // Zeilenwert® GmbH ∙ 07407 Rudolstadt ∙ Germany
PUBLISHING HOUSE // Swiridoff Verlag ∙ 74653 Künzelsau ∙ Germany
EDITIONS
1st edition January 2001
2nd extended and revised edition January 2002
3rd extended and revised edition November 2005
4th extended and revised edition April 2009
5th extended and revised edition November 2018
ISBN 978-3-89929-157-5
ISBN (E-BOOK) 978-3-89929-400-2
Content
BASIC PRINCIPLES 11 – 272
The most important laws and foundations of inductive components,
equivalent circuit diagrams and simulation models give the reader a
basic knowledge of electronics.

COMPONENTS 273 – 474
This chapter introduces inductive components and their special proper-
ties and areas of use. All relevant components are explained, from EMC
components and inductors to transformers, RF components, circuit pro-
tection components, shielding materials and capacitors.
APPLICATIONS 475 – 788
In this chapter, the reader will find a comprehensive overview of the
principle of filter circuits, circuitry and numerous industrial applications
that are explained in detail based on original examples.
APPENDICES 789 – 826
A technical dictionary and alphabetical key word index for quick searches
complete this book.
This book includes references to different simulation libraries and design
software. To access all of these tools, please visit
www.we-online.com/toolbox.
Preface
Dear Readers,
Inductive components in electronic circuit design – whether for voltage conversion, filtering, or
to safeguard the EMC – are anything but trivial and can be a headache for many designers. As a
technician or engineer, what do I need to consider when it comes to component selection? How
do I find the best component for my application when there are so many versions to choose
from? How important are the datasheet parameters? What are the differences between the core
materials?
This widespread uncertainty and the largely lacking practical approach in training for selecting
and using inductive components in circuit design was the reason we wrote a book. The great
success and immense popularity of our application manual „Trilogy of Magnetics“ show that we
were on the right track. You are currently holding the fifth completely revised and modernized
version in your hands. Thousands of engineers have found support for tens of thousands of de-
signs in this manual. This fills us with pride and gratitude.
The book focuses on the selection of components, circuitry and layout recommendations for a
wide array of magnetics components, always keeping in mind an EMC point of view.
We strongly recommend that all readers pay particular attention to Chapter 1 – The Basics. Only
if you understand, consistently observe and apply the basics, will you be able to select and use
the right inductive components. In addition to these basics, we also address the topic of simula-
tion. The first chapter has been considerably extended in the new edition and we have pooled
some of the theory from other sections here for better understandability. This includes filter ba-
sics, which has been extended to higher frequencies, transformer equivalent circuits, updated
Ethernet and Power-over-Ethernet, basics of switched-mode power supplies including feedback
compensation, wireless power transmission and RF basics. In addition, new information on skin,
proximity effect and AC losses is included.
We have extended the existing chapters or added new ones to reflect the growing importance of
topics such as wireless power transmission, RF, energy harvesting, and the new SiC (silicon
carbide) and GaN (gallium nitride) switching devices.
The components section lists all Würth Elektronik magnetic component families clearly in a com-
pact format, always followed by a page with their most important features and characteristics.
This allows you to browse quickly the entire range of available components and their general
specifications.
At this point I would also like to thank the external authors from our circle of customers and from
well-known manufacturers. Their experience and solutions in basic principles and circuit tech-
nology are incorporated here and will certainly be of great benefit to you. The trilogy is rounded
off by the explanation of important technical terms. Thus, you have a compact and practical
reference book for your daily work, but also for teaching, studies and research.
As always, we look forward to receiving your suggestions and hope you enjoy the „Trilogy of
Magnetics“.
Sincerely yours
Alexander Gerfer
CTO
Würth Elektronik eiSos Group
Thank you!
Special thanks for their constructive assistance go to:
Michael Bairanzade, ON Semiconductor, Toulouse, France
Dipl.-Ing. (FH) Markus Braun, Fujitsu Siemens Computers GmbH, Augsburg, Germany
Dipl.-Ing. (FH) Hans Dieter Frank, Würth Elektronik iBE GmbH, Thyrnau, Germany
Dipl.-Ing. (FH) Ralf Frank, HF-Entwicklung Frank, Salem, Germany
Dipl.-Ing. (FH) Andreas Merkle, NewTec GmbH, Pfaffenhofen a. d. Roth, Germany
Dr. Andreas Schiff, ICS GmbH, Tettnang, Germany
Dipl.-Ing. (FH) Anestis Terzis, DaimlerChrysler, Ulm, Germany
Andre Schwarz, Matrix Vision GmbH, Oppenweiler, Germany
Ansgar Trotter, Honeywell GmbH, Schönaich, Germany
Jörg Meyer, Iris GmbH, Berlin, Germany
Matthias Mühle, Philips Medizinsysteme GmbH, Böblingen, Germany
Jon Harper, Fairchild Semiconductor GmbH, Fürstenfeldbruck, Germany
Power Integration, San Jose, USA
Nils Dirks, Dirks Compliance Consulting, Herrsching, Germany
Dean Huumala, Wurth Electronics Midcom Inc., Watertown, USA
Nigel Smith, Texas Instruments, Freising, Germany
Alain Lafuente, Würth Elektronik eiSos, Saint Priest Cedex, France
Sébastien Chadal, Würth Elektronik eiSos, Saint Priest Cedex, France
Jochen Baier, Würth Elektronik eiSos, Waldenburg, Germany
Ralf Stiehler, Würth Elektronik eiSos, Waldenburg, Germany
Lorandt Fölkel, Würth Elektronik eiSos, Waldenburg, Germany
Rudolf Hauser, Supertex Inc., Gräfelfing, Germany
George Slama, Wurth Electronics Midcom Inc., Watertown, USA
Stefan Hellwig, Würth Elektronik eiSos, Waldenburg, Germany
Suggestions and criticisms on this book gratefully received by:
Würth Elektronik eiSos GmbH & Co. KG
Alexander Gerfer
Tel.: [phone] - 0
Email: [e-mail]
All rights reserved
© Würth Elektronik eiSos GmbH & Co. KG, Waldenburg, November 2018
The work and all of its parts are copyrighted. Any use outside the narrow limitations of copyright law without approval of the publishing
house is not permitted and is liable to prosecution. This applies in particular to copying, translating, microfilming, other types of processing
and to storing and processing in electronic systems. This also applies to the utilization of individual illustrations and text excerpts.
The Authors
Bernhard Rall, born in 1928, studied at the Technical University of Hanover after the war and
imprisonment. In 1955, Bernhard Rall begun at the Telefunken Research Institute, which later
belonged to AEG and Daimler. Mr. Rall left the institute as Chief Engineer in order to carry out his
own research on vehicle EMC within the same establishment. His interest lay in the ingenious,
practical solution of complex problems. Bernard Rall contributed to this textbook with the descrip-
tion and measurements performed in the chapter “Equivalent circuits and simulation models”, as
well through practical examples of power noise suppression using ferrites and in the dimensioning
and simulation of a coil filter.
Dr.-Ing. Heinz Zenkner studied electrical engineering with a focus on telecommunication and
high frequency engineering and obtained his PhD in this field. He has been a officialy appointed and
sworn expert for EMC for many years. In addition to numerous scientific publications, he frequently
contributes as an author in many works on EMC. Mr. Zenkner has worked at various Universities, at
the German Chamber of Industry and Commerce (IHK) and at numerous seminars. He has been
involved with industrial electronics for years now, from the first idea of product through to series
production. His special interest lies in Wireless Energy Transfer, to which he has developed and
patented his own theoretical and practical concepts.
Alexander Gerfer, born 1965, worked in the field of research and development for precision
measuring instruments following his training as a radio and television technician. This was followed
by a degree on electrical engineering at the Technical University of Cologne. While studying, Alex-
ander Gerfer published numerous application circuits and construction guidelines from the field of
consumer electronics. After his degree, he worked in electronic component distribution and from
1997 on, he was head of R&D department at Würth Elektronik. Today Alexander Gerfer is Managing
Director and Chief Technology Officer of Würth Elektronik eiSos GmbH & Co. KG.
Dr. Thomas Brander, born 1970, graduated from the Ruprecht-Karls University of Heidelberg
with a degree in physics before gaining his PHD on physical age determination of iron ores. He
then worked as a developer for a transformer manufacturer where he designed a wide range of
inductors and transformers for high power applications (up to 100 kW). Since 2004, he has been
responsible for the product area of transformers at Würth Elektronik and is now Head of Product
Management for EMC & Inductive Solutions.