EMI Filter Design

Richard Lee Ozenbaugh, Timothy M. Pullen

• Publisher: CRC Press
• Year: 2017
• Print ISBN: 9781439844755
• eBook ISBN: 9781351833004
• Edition: 3
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

With today's electrical and electronics systems requiring increased levels of performance and reliability, the design of robust EMI filters plays a critical role in EMC compliance. Using a mix of practical methods and theoretical analysis, EMI Filter Design, Third Edition presents both a hands-on and academic approach to the design of EMI filters and the selection of components values. The design approaches covered include matrix methods using table data and the use of Fourier analysis, Laplace transforms, and transfer function realization of LC structures. This edition has been fully revised and updated with additional topics and more streamlined content.

New to the Third Edition

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• Analysis techniques necessary for passive filter realization
• Matrix method and transfer function analysis approaches for LC filter structure design
• A more hands-on look at EMI filters and the overall design process

Through this bestselling book's proven design methodology and practical application of formal techniques, readers learn how to develop simple filter solutions. The authors examine the causes of common- and differential-mode noise and methods of elimination, the source and load impedances for various types of input power interfaces, and the load impedance aspect of EMI filter design. After covering EMI filter structures, topologies, and components, they provide insight into the sizing of components and protection from voltage transients, discuss issues that compromise filter performance, and present a goal for a filter design objective. The text also includes a matrix method for filter design, explains the transfer function method of LC structures and their equivalent polynomials, and gives a circuit design example and analysis techniques. The final chapter presents packaging solutions of EMI filters.

Table of contents

• Cover Page
• Title Page
• Copyright Page
• Contents
• Preface
• Acknowledgments
• Authors
• Terms and Abbreviations
• Organization of the Book
• 1 EMI Filters
• 2 Why Call EMI Filters Black Magic?
• 3 Common Mode and Differential Mode: Definition, Cause, and Elimination
• 4 EMI Filter Source Impedance of Various Power Lines
• 5 Various AC Load Impedances
• 6 DC Circuit—Load and Source
• 7 Typical EMI Filters—Pros and Cons
• 8 Filter Components—the Capacitor
• 9 Filter Components—the Inductor
• 10 Common-Mode Components
• 11 Transformer’s Addition to the EMI Filter
• 12 Electromagnetic Pulse and Voltage Transients
• 13 What Will Compromise the Filter?
• 14 Waves as Noise Sources
• 15 Initial Filter Design Requirements
• 16 Matrices, Transfer Functions, and Insertion Loss
• 17 Matrix Applications: A Continuation of Chapter 16
• 18 Network Analysis of Passive LC Structures
• 19 Filter Design Techniques and Design Examples
• 20 Packaging Information
• Appendix A: K Values of Different Topologies
• Appendix B: LC Passive Filter Design
• Appendix C: Conversion Factors
• References
• Index