This book emphasizes understanding basic concepts of controlling the currents on printed circuit boards (pcb's), and provides a wealth of insightful information detailing the possible sources of emissions. Numerous design strategies are presented to help readers understand how to produce, control and eliminate emission sources. Additional highlights include the following: -Information explaining how to design pcb's to pass EMC Requirements the first time! -Controlling intentional and unintentional currents at their source; -Decoupling strategies explained and myths exposed; -Proper I/O filter design and connection strategy explained; -Not simply a list of do's and don't's....but an explanation of "why" things work as they do; -"Ground is a place where potatoes and carrots grow!" -Basic shielding design considerations for PCBs included, and more. This 'hands-on' book will help designers understand "why" or "why not" to implement a specific design practice.

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.

A very important part of printed circuit board (PCB) design involves sizing traces and vias to carry the required current. This exciting new book will explore how hot traces and vias should be and what board, circuit, design, and environmental parameters are the most important. PCB materials (copper and dielectrics) and the role they play in the heating and cooling of traces are covered. The IPC curves found in IPC 2152, the equations that fit those curves and computer simulations that fit those curves and equations are detailed. Sensitivity analyses that show what happens when environments are varied, including adjacent traces and planes, changing trace lengths, and thermal gradients are presented. Via temperatures and what determines them are explored, along with fusing issues and what happens when traces are overloaded. Voltage drops across traces and vias, the thermal effects going around right-angle corners, and frequency effects are covered. Readers learn how to measure the thermal conductivity of dielectrics and how to measure the resistivity of copper traces and why many prior attempts to do so have been doomed to failure. Industrial CT Scanning, and whether or not they might replace microsections for measuring trace parameters are also considered.

This accessible, new reference work shows how and why RF energy iscreated within a printed circuit board and the manner in whichpropagation occurs. With lucid explanations, this book enablesengineers to grasp both the fundamentals of EMC theory and signalintegrity and the mitigation process needed to prevent an EMCevent. Author Montrose also shows the relationship between time andfrequency domains to help you meet mandatory compliancerequirements placed on printed circuit boards. Using real-world examples the book features: Clear discussions, without complex mathematical analysis, offlux minimization concepts Extensive analysis of capacitor usage for variousapplications Detailed examination of components characteristics with variousgrounding methodologies, including implementation techniques An in-depth study of transmission line theory A careful look at signal integrity, crosstalk, andtermination

An essential guide to modern circuit board design based on simple physics and practical applications The fundamentals taught in circuit theory were never intended to work above a few megahertz, let alone at a gigahertz. While electronics is grounded in physics, most engineers’ education in this area is too general and mathematical to be easily applied to the problem of high speed circuits. Left to their own devices, many engineers produce layouts that require expensive revisions in order to finally meet specifications. Fast Circuit Boards fills the gap in knowledge by providing clear, down-to-earth guidance on designing digital circuit boards that function at high clock rates. By making the direct connection between physics and fast circuits, this book instills the fundamental universal principles of information transfer to give engineers a solid basis for hardware design. Using simple tools, simple physics, and simple language, this invaluable resource walks through basic electrostatics, magnetics, wave mechanics, and more to bring the right technology down to the working level. Designed to be directly relevant and immediately useful to circuit board designers, this book: Properly explains the problems of fast logic and the appropriate tools Applies basic principles of physics to the art of laying out circuit boards Simplifies essential concepts scaled up to the gigahertz level, saving time, money, and the need for revisions Goes beyond circuit theory to provide a deep, intuitive understanding of the mechanisms at work Demonstrates energy management’s role in board design through step function-focused transmission line techniques Engineers and technicians seeking a more systematic approach to board design and a deeper understanding of the fundamental principles at work will find tremendous value in this highly practical, long-awaited text.

"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

The application of computational electromagnetics to practical EMI/EMC engineering is an emerging technology. Because of the increased complexity in EMI/EMC issues resulting from advancements in electronics and telecommunications, it is no longer possible to rely exclusively on traditional techniques and tools to solve the growing list of electronic engineering design problems. EMI/EMC Computational Modeling Handbook introduces modeling and simulation of electromagnetics to real-world EMI/EMC engineering. It combines the essentials of electromagnetics, computational techniques, and actual EMI/EMC applications. Included are such popular full-wave computational modeling techniques as the Method of Moments, Finite-Difference Time Domain Technique, Finite Element Method, and several others. The authors have included a myriad of applications for computers, telecommunications, consumer electronics, medical electronics, and military uses. EMI/EMC Computational Modeling Handbook is an invaluable reference work for practicing EMI/EMC engineers, electronic design engineers, and any engineer involved in computational electromagnetics.

This book provides instruction on how to use the OrCAD design suite to design and manufacture printed circuit boards. The primary goal is to show the reader how to design a PCB using OrCAD Capture and OrCAD Editor. Capture is used to build the schematic diagram of the circuit, and Editor is used to design the circuit board so that it can be manufactured. The book is written for both students and practicing engineers who need in-depth instruction on how to use the software, and who need background knowledge of the PCB design process. - Beginning to end coverage of the printed circuit board design process. Information is presented in the exact order a circuit and PCB are designed - Over 400 full color illustrations, including extensive use of screen shots from the software, allow readers to learn features of the product in the most realistic manner possible - Straightforward, realistic examples present the how and why the designs work, providing a comprehensive toolset for understanding the OrCAD software - Introduces and follows IEEE, IPC, and JEDEC industry standards for PCB design. - Unique chapter on Design for Manufacture covers padstack and footprint design, and component placement, for the design of manufacturable PCB's - FREE CD containing the OrCAD demo version and design files

Complete PCB Design Using OrCad Capture and Layout provides instruction on how to use the OrCAD design suite to design and manufacture printed circuit boards. The book is written for both students and practicing engineers who need a quick tutorial on how to use the software and who need in-depth knowledge of the capabilities and limitations of the software package. There are two goals the book aims to reach: The primary goal is to show the reader how to design a PCB using OrCAD Capture and OrCAD Layout. Capture is used to build the schematic diagram of the circuit, and Layout is used to design the circuit board so that it can be manufactured. The secondary goal is to show the reader how to add PSpice simulation capabilities to the design, and how to develop custom schematic parts, footprints and PSpice models. Often times separate designs are produced for documentation, simulation and board fabrication. This book shows how to perform all three functions from the same schematic design. This approach saves time and money and ensures continuity between the design and the manufactured product. - Information is presented in the exact order a circuit and PCB are designed - Straightforward, realistic examples present the how and why the designs work, providing a comprehensive toolset for understanding the OrCAD software - Introduction to the IPC, JEDEC, and IEEE standards relating to PCB design - Full-color interior and extensive illustrations allow readers to learn features of the product in the most realistic manner possible