Download or read book Reduction of Electromagnetic Interference Due to Electric Field Coupling on Printed Circuit Board written by Chun-Ming Angus Lee and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Reduction of Electromagnetic Interference Due to Electric Field Coupling on Printed Circuit Board" by Chun-ming, Angus, Lee, 李俊明, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: ABSTRACT The broad applications of power electronic equipment improve the power factor and efficiency of the power converters, but they also generate electromagnetic noise to pollute the environment and the power system network. The development of power filter technology provides an effective solution towards the power frequency harmonics. Through its research, this thesis contributes to the development of high frequency electromagnetic interference (EMI) in switch mode power supply (SMPS). Traditional EMI reduction technologies relies on filtering and shielding, which are generally applied to the product by simple design rules or integrated simulation software. The high voltage switching characteristics of the switch mode power supply and the near field electric coupling between the PCB traces have a significant impact on the final EMI emission of the product. A novel approach technique to reduce such the electric coupling is mandatory. This thesis describes the measurement method used to assess the electric field coupling and the level of significance. The measurement result confirms the contribution of the electric coupling in the overall EMI generated from the SMPS. Extensive experiments verify the effectiveness of EMI reduction techniques. A thorough analysis on the electric field models of the PCB traces concludes the capacitance effect determines a high portion of the EMI generated from the SMPS. Nevertheless, the calculation of capacitance is time consuming. Any alternation in the geometry of the circuit requires the whole system to be re-calculated the whole system. During the experimental stage, a de-coupled field calculation closely resembles the mythesis.doc - iii - capacitance. The index of the electric field coupling is then defined as the "Coupling Index." It comprises the benefits fast calculation and independence of the changes in the PCB geometry. Utilising the "Coupling Index," a computer simulation tool is developed to provide a quantitative comparison on the noise coupling as well as the EMI as a result of electric field coupling. On the whole, the simulation tool combined with artificial intelligence forms an integrated simulation software with automatic trace routing. The software optimises the effects of the electric field coupling between the PCB traces to reduce the EMI generation. In summary, this thesis demonstrates the EMI due to electric field coupling in SMPS and develops an automatic software package to reduce the coupling effect with the aid of artificial software. This contributes to the ultimate PCB auto-routing tools with all EMI parameters taken into consideration. mythesis.doc - iv - DOI: 10.5353/th_b2995770 Subjects: Electromagnetic interference Electronic circuits - Noise
Download or read book Reduction of Electromagnetic Interference Due to Electric Field Coupling on Printed Circuit Board written by Chun-ming Lee (M.Phil., Angus) and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles and Techniques of Electromagnetic Compatibility written by Christos Christopoulos and published by CRC Press. This book was released on 2018-10-03 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circuits are faster and more tightly packed than ever, wireless technologies increase the electromagnetic (EM) noise environment, new materials entail entirely new immunity issues, and new standards govern the field of electromagnetic compatibility (EMC). Maintaining the practical and comprehensive approach of its predecessor, Principles and Techniques of Electromagnetic Compatibility, Second Edition reflects these emerging challenges and new technologies introduced throughout the decade since the first edition appeared. What's new in the Second Edition? Characterization and testing for high-speed design of clock frequencies up to and above 6 GHz Updates to the regulatory framework governing EM compliance Additional coverage of the printed circuit board (PCB) environment as well as additional numerical tools An entirely new section devoted to new applications, including signal integrity, wireless and broadband technologies, EMC safety, and statistical EMC Added coverage of new materials such as nanomaterials, band gap devices, and composites Along with new and updated content, this edition also includes additional worked examples that demonstrate how estimates can guide the early stages of design. The focus remains on building a sound foundation on the fundamental concepts and linking this to practical applications, rather than supplying application-specific fixes that do not easily generalize to other areas.
Download or read book Electromagnetic Bandgap EBG Structures written by Antonio Orlandi and published by John Wiley & Sons. This book was released on 2017-05-31 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential guide to the background, design, and application of common-mode filtering structures in modern high-speed differential communication links Written by a team of experts in the field, Electromagnetic Bandgap (EBG) Structures explores the practical electromagnetic bandgap based common mode filters for power integrity applications and covers the theoretical and practical design approaches for common mode filtering in high-speed printed circuit boards, especially for boards in high data-rate systems. The authors describe the classic applications of electromagnetic bandgap (EBG) structures and the phenomena of common mode generation in high speed digital boards. The text also explores the fundamental electromagnetic mechanisms of the functioning of planar EBGs and considers the impact of planar EBGs on the digital signal propagation of single ended and differential interconnects routed on top or between EBGs. The authors examine the concept, design, and modeling of EBG common mode filters in their two forms: on-board and removable. They also provide several comparisons between measurement and electromagnetic simulations that validate the proposed EBG filters' design approach. This important resource: • Presents information on planar EBG based common mode filters for high speed differential digital systems • Provides systematic analysis of the fundamental mechanisms of planar EBG structures • Offers detailed design methodology to create EBG filters without the need for repeated full-wave electromagnetic analysis • Demonstrates techniques for use in practical real-world designs Electromagnetic Bandgap (EBG) Structures: Common Mode Filters for High Speed Digital Systems offers an introduction to the background, design, and application of common-mode filtering structures in modern high-speed differential communication links, a critical issue in high-speed and high-performance systems.
Download or read book An Investigation of Coupling Mechanisms on Printed Circuit Boards Leading to Electromagnetic Interference written by David Martin Hockanson and published by . This book was released on 1997 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Design of Electromagnetic Compatibility for High Speed Printed Circuit Boards and Packaging written by Xing-Chang Wei and published by CRC Press. This book was released on 2017-09-19 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and Design of Electromagnetic Compatibility for High-Speed Printed Circuit Boards and Packaging presents the electromagnetic modelling and design of three major electromagnetic compatibility (EMC) issues related to the high-speed printed circuit board (PCB) and electronic packages: signal integrity (SI), power integrity (PI), and electromagnetic interference (EMI). The emphasis is put on two essential passive components of PCBs and packages: the power distribution network and the signal distribution network. This book includes two parts. Part one talks about the field-circuit hybrid methods used for the EMC modeling, including the modal method, the integral equation method, the cylindrical wave expansion method and the de-embedding method. Part two illustrates EMC design methods and explores the applications of novel metamaterials and two-dimensional materials on traditional EMC problems. This book is designed to enhance worthwhile electromagnetic theory and mathematical methods for practical engineers and to train students with advanced EMC applications.
Download or read book Proceedings of the Power Conversion Conference written by and published by . This book was released on 1997 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PCB Design for Real World EMI Control written by Bruce R. Archambeault and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper design of printed circuit boards can make the difference between a product passing emissions requirements during the first cycle or not. Traditional EMC design practices have been simply rule-based, that is, a list of rules-of-thumb are presented to the board designers to implement. When a particular rule-of-thumb is difficult to implement, it is often ignored. After the product is built, it will often fail emission requirements and various time consuming and costly add-ons are then required. Proper EMC design does not require advanced degrees from universities, nor does it require strenuous mathematics. It does require a basic understanding of the underlying principles of the potential causes of EMC emissions. With this basic understanding, circuit board designers can make trade-off decisions during the design phase to ensure optimum EMC design. Consideration of these potential sources will allow the design to pass the emissions requirements the first time in the test laboratory. A number of other books have been published on EMC. Most are general books on EMC and do not focus on printed circuit board is intended to help EMC engineers and design design. This book engineers understand the potential sources of emissions and how to reduce, control, or eliminate these sources. This book is intended to be a 'hands-on' book, that is, designers should be able to apply the concepts in this book directly to their designs in the real-world.
Download or read book Analog Signal Processing written by Ramón Pallás-Areny and published by John Wiley & Sons. This book was released on 1999-02-05 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: A proven, cost-effective approach to solving analog signal processing design problems Most design problems involving analog circuits require a great deal of creativity to solve. But, as the authors of this groundbreaking guide demonstrate, finding solutions to most analog signal processing problems does not have to be that difficult. Analog Signal Processing presents an original, five-step, design-oriented approach to solving analog signal processing problems using standard ICs as building blocks. Unlike most authors who prescribe a "bottom-up" approach, Professors Pallás-Areny and Webster cast design problems first in functional terms and then develop possible solutions using available ICs, focusing on circuit performance rather than internal structure. The five steps of their approach move from signal classification, definition of desired functions, and description of analog domain conversions to error classification and error analysis. Featuring 90 worked examples-many of them drawn from actual implementations-and more than 130 skill-building chapter-end problems, Analog Signal Processing is both a valuable working resource for practicing design engineers and a textbook for advanced courses in electronic instrumentation design.
Download or read book Grounding and Shielding written by Ralph Morrison and published by John Wiley & Sons. This book was released on 2016-03-24 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applies basic field behavior in circuit design and demonstrates how it relates to grounding and shielding requirements and techniques in circuit design This book connects the fundamentals of electromagnetic theory to the problems of interference in all types of electronic design. The text covers power distribution in facilities, mixing of analog and digital circuitry, circuit board layout at high clock rates, and meeting radiation and susceptibility standards. The author examines the grounding and shielding requirements and techniques in circuit design and applies basic physics to circuit behavior. The sixth edition of this book has been updated with new material added throughout the chapters where appropriate. The presentation of the book has also been rearranged in order to reflect the current trends in the field. Grounding and Shielding: Circuits and Interference, Sixth Edition: Includes new material on vias and field control, capacitors as transmission lines, first energy sources, and high speed designs using boards with only two layers Demonstrates how circuit geometry controls performance from dc to gigahertz Examines the use of multi-shielded transformers in clean-power installations Provides effective techniques for handling noise problems in analog and digital circuits Discusses how to use conductor geometry to improve performance, limit radiation, and reduce susceptibility to all types of hardware and systems Grounding and Shielding: Circuits and Interference, Sixth Edition is an updated guide for circuit design engineers and technicians. It will also serve as a reference for engineers in the semiconductor device industry.
Download or read book Noise Reduction Techniques in Electronic Systems written by Henry W. Ott and published by Wiley-Interscience. This book was released on 1988-03-23 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and expanded version of the very successful first edition offers new chapters on controlling the emission from electronic systems, especially digital systems, and on low-cost techniques for providing electromagnetic compatibility (EMC) for consumer products sold in a competitive market. There is also a new chapter on the susceptibility of electronic systems to electrostatic discharge. There is more material on FCC regulations, digital circuit noise and layout, and digital circuit radiation. Virtually all the material in the first edition has been retained. Contains a new appendix on FCC EMC test procedures.
Download or read book Aspects of Electromagnetic Interference on Printed Circuit Boards written by Marko Radojic̆ić and published by . This book was released on 1990 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: General guidelines for the design of printed circuit boards have been developed for two important aspects of electromagnetic compatibility: cross-talk and radiated emissions.
Download or read book Electromagnetic Compatibility written by and published by . This book was released on 1986 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Electronic Facilities Interference Coupling and Reduction for Professional Engineers written by J. Paul Guyer and published by Guyer Partners. This book was released on 2023-02-25 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for electrical engineers interested in design of electronic equipment facilities. Here is what is discussed: 1. INTRODUCTION, 2. COUPLING MECHANISMS, 3. COMMON-MODE NOISE, 4. MINIMIZATION TECHNIQUES, 5. FACILITY AND EQUIPMENT REQUIREMENTS.
Download or read book Modeling and Design of Electromagnetic Compatibility for High Speed Printed Circuit Boards and Packaging written by Xing-Chang Wei and published by CRC Press. This book was released on 2017-09-19 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and Design of Electromagnetic Compatibility for High-Speed Printed Circuit Boards and Packaging presents the electromagnetic modelling and design of three major electromagnetic compatibility (EMC) issues related to the high-speed printed circuit board (PCB) and electronic packages: signal integrity (SI), power integrity (PI), and electromagnetic interference (EMI). The emphasis is put on two essential passive components of PCBs and packages: the power distribution network and the signal distribution network. This book includes two parts. Part one talks about the field-circuit hybrid methods used for the EMC modeling, including the modal method, the integral equation method, the cylindrical wave expansion method and the de-embedding method. Part two illustrates EMC design methods and explores the applications of novel metamaterials and two-dimensional materials on traditional EMC problems. This book is designed to enhance worthwhile electromagnetic theory and mathematical methods for practical engineers and to train students with advanced EMC applications.
Download or read book Electromagnetic Compatibility Handbook written by Kenneth L. Kaiser and published by CRC Press. This book was released on 2004-09-29 with total page 2714 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the number of electrical devices in use continues to grow, so do the challenges of ensuring the electromagnetic compatibility (EMC) of products and systems. Fortunately, engineers have at their disposal an array of approximations, models, and rules-of-thumb to help them meet those challenges. Unfortunately, the number of these tools and guidelines is overwhelming, and worse still is the thought of investigating their origins and confirming their results. The Electromagnetic Compatibility Handbook is an unprecedented compilation of the many approximations, guidelines, models, and rules-of-thumb used in EMC analyses, complete with their sources and their limitations. The book presents these in an efficient question-and-answer format and incorporates an extremely comprehensive set of tables and figures. The author has either derived from basic principles or obtained and verified from their original sources all of the expressions in the tables. Mathcad was used to generate most of the plots and solve many of the equations, and the author includes the Mathcad programs for many of these so users can clearly see the variable assignments, assumptions, and equations. Designed to be of long-lasting value to engineers, researchers, and students, the Electromagnetic Compatibility Handbook is ideal both for quick reference and as a textbook for upper-level and graduate electrical engineering courses.
Download or read book Printed Circuit Board Design Techniques for EMC Compliance written by Mark I. Montrose and published by Wiley-IEEE Press. This book was released on 2000-07-04 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Electromagnetic compatibility (EMC) is an engineering discipline often identified as "black magic." This belief exists because the fundamental mechanisms on how radio frequency (RF) energy is developed within a printed circuit board (PCB) is not well understood by practicing engineers. Rigorous mathematical analysis is not required to design a PCB. Using basic EMC theory and converting complex concepts into simple analogies helps engineers understand the mitigation process that deters EMC events from occurring. This user-friendly reference covers a broad spectrum of information never before published, and is as fluid and comprehensive as the first edition. The simplified approach to PCB design and layout is based on real-life experience, training, and knowledge. Printed Circuit Board Techniques for EMC Compliance, Second Edition will help prevent the emission or reception of unwanted RF energy generated by components and interconnects, thus achieving acceptable levels of EMC for electrical equipment. It prepares one for complying with stringent domestic and international regulatory requirements. Also, it teaches how to solve complex problems with a minimal amount of theory and math. Essential topics discussed include: * Introduction to EMC * Interconnects and I/O * PCB basics * Electrostatic discharge protection * Bypassing and decoupling * Backplanes-Ribbon Cables-Daughter Cards * Clock Circuits-Trace Routing-Terminations * Miscellaneous design techniques This rules-driven book-formatted for quick access and cross-reference-is ideal for electrical and EMC engineers, consultants, technicians, and PCB designers regardless of experience or educational background." Sponsored by: IEEE Electromagnetic Compatibility Society
