Pcb Trace And Via Currents And Temperatures
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Pcb Design Guide To Via And Trace Currents And Temperatures
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Author : Douglas Brooks
language : en
Publisher: Artech House
Release Date : 2021-02-28
Pcb Design Guide To Via And Trace Currents And Temperatures written by Douglas Brooks and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-28 with Technology & Engineering categories.
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.
Pcb Trace And Via Currents And Temperatures
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Author : Douglas G Brooks Phd
language : en
Publisher:
Release Date : 2017-02-09
Pcb Trace And Via Currents And Temperatures written by Douglas G Brooks Phd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-09 with categories.
Brooks has been looking at these relationships since the mid '90s. And he has assembled 20-plus years of knowledge into these pages. Starting with a historical background, this book covers: (a) PCB materials (copper and dielectrics) and the role they play in the heating and cooling of traces; (b) The IPC curves found in IPC 2152; (c) Equations that fit those curves; (d) Computer simulations that fit those curves and equations; (e) Sensitivity analyses showing what happens when we vary the environment (adjacent traces and planes, changing trace lengths, thermal gradients, etc.); (f) Via temperatures and what determines them; (g) Via current densities; and (h) Fusing issues, what happens when traces are overloaded. There are supplemental chapters or appendices on measuring the thermal conductivity of dielectrics and measuring the resistivity of copper traces (and why many prior attempts to do so have been doomed to failure.) And there is even a chapter on whether Industrial CT Scanning might replace microsections for measuring trace parameters. This Second Edition adds two new chapters (on AC currents and on thermal gradients around right-angle corners), a greatly expanded Chapter 6 (Thermal Simulations), and other additional information throughout the text.
Pcb Trace And Via Currents And Temperatures
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Author : Douglas Brooks
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2016-03-04
Pcb Trace And Via Currents And Temperatures written by Douglas Brooks and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-04 with categories.
Finally! For the first time, here is a complete, thorough analysis of the relationships between PCB trace (and via) currents and trace temperatures. All in one place! Brooks has been looking at these relationships since the mid '90s. And he has assembled 20-plus years of knowledge into these pages. Starting with a historical background, this book covers: (a) PCB materials (copper and dielectrics) and the role they play in the heating and cooling of traces; (b) The IPC curves found in IPC 2152; (c) Equations that fit those curves; (d) Computer simulations that fit those curves and equations; (e) Sensitivity analyses showing what happens when we vary the environment (adjacent traces and planes, changing trace lengths, thermal gradients, etc.); (f) Via temperatures and what determines them; (g) Via current densities; (h) Fusing issues, what happens when traces are overloaded, and (g) a chapter showing how unevenly traces heat, even at low temperatures. There are supplemental chapters or appendices on measuring the thermal conductivity of dielectrics and measuring the resistivity of copper traces (and why many prior attempts have been doomed to failure.) And there is even a chapter on whether Industrial CT Scanning might replace microsections for measuring trace parameters. Never before has such a thorough compendium been available, especially so conveniently.
Pcb Trace Current Temperature Curves 0 25 Oz To 5 0 Oz
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Author : Douglas Brooks
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-09
Pcb Trace Current Temperature Curves 0 25 Oz To 5 0 Oz written by Douglas Brooks and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-09 with categories.
Brooks has been looking at these relationships since the mid '90s, and entered into a multi-year collaboration with Johannes Adam in 2014. And he has assembled 27-plus years of knowledge into these pages. Detailed PCB trace current/temperature charts cover 7 trace thicknesses and 11 trace widths: 1/4, 1/2, 1.0, 2.0, 3.0, 4.0, and 5.0 Oz trace thicknesses and 15, 25, 50, 80, 100, 150, 200, 250, 300, 400, and 500 mil trace widths. The text summarizes the factors that influence trace heating (i^2R) and trace cooling (thermal conductivity through the dielectric, convection, and radiation.) Internal traces are cooler than external traces because the thermal conductivity through the dielectric is more efficient. The change between internal and external temperatures increases as the external temperature increases, and also as the trace depth increases. Guidelines are provided to help estimate an internal trace temperature based on what the external temperature is/would be and the relative depth of the trace. The charts are based on the work Brooks and Adam did in their recent book, "PCB Trace and Via Temperatures: The Complete Analysis," 2nd Edition, 2017 (available on Amazon.com) and on subsequent modeling using Dr. Adam's simulation software Thermal Risk Management (TRM). Table of Contents 1.0 Introduction and Background 2.0 Description 2.1 Factors Leading to Heating 2.2 Factors Leading to Cooling 2.3 How Hot Is Too Hot? 3.0 Internal Traces 4.0 Accuracy 4.1 How Do We Measure Trace Temperature 4.2 Estimate Accuracy 5.0 Current Temperature Charts Notes and References Appendices
Pcb Currents
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Author : Douglas Brooks
language : en
Publisher: Prentice Hall
Release Date : 2013-06-13
Pcb Currents written by Douglas Brooks and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-13 with Technology & Engineering categories.
The Plain-English Guide to Electronics and Current Flow for Every PCB Designer Today, PCB designers must deal with issues such as crosstalk and EMI-–issues that were once associated only with components. This requires electronics knowledge that many PCB designers never gain through formal training. In PCB Currents, renowned PCB designer Douglas Brooks teaches these essentials descriptively, in plain English, with as little reliance on mathematics as possible. Building on his widely praised seminars, Brooks explains what current is, how it flows, and how it reacts. He begins by reviewing the nature of current, and then explains current flow in basic circuits, discusses sources that supply and drive current, and addresses the unique problems associated with current on PCBs. Brooks concludes by thoroughly illuminating signal integrity issues caused by current flow. He offers practical design solutions for each common type of problem, as well as for complex challenges involving very high frequency harmonics and very short wavelengths. Coverage includes • Current: its fundamental nature, basic definitions, and key concepts • Five fundamental laws of current, including Kirchoff’s law and Ohm’s law • Basic circuit concepts: resistive circuits, reactive circuits, and impedance • Voltage and current sources: Where electrons come from and why they move • Current-related PCB issues: temperature, transmission lines, reflections, coupled currents, power distribution, skin effect, dielectric losses, and vias • Solutions for signal integrity issues caused by current flow, from on-board inductance and apparent resistance changes to more complex problems The text is written to be accessible and valuable for PCB designers at all levels of experience, whether they have engineering training or not.
Design Of Integrated Current And Temperature Sensors In Power Electronic Modules Using Gmr Point Field Detectors
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Author : Erik R. Olson
language : en
Publisher:
Release Date : 2006
Design Of Integrated Current And Temperature Sensors In Power Electronic Modules Using Gmr Point Field Detectors written by Erik R. Olson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Complete Pcb Design Using Orcad Capture And Pcb Editor
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Author : Kraig Mitzner
language : en
Publisher: Academic Press
Release Date : 2019-06-20
Complete Pcb Design Using Orcad Capture And Pcb Editor written by Kraig Mitzner and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-20 with Technology & Engineering categories.
Complete PCB Design Using OrCAD Capture and PCB Editor, Second Edition, provides practical instruction on how to use the OrCAD design suite to design and manufacture printed circuit boards. Chapters cover how to Design a PCB using OrCAD Capture and OrCAD Layout, adding PSpice simulation capabilities to a design, how to develop custom schematic parts, how to create footprints and PSpice models, and how to perform documentation, simulation and board fabrication from the same schematic design. This book is suitable for both beginners and experienced designers, providing basic principles and the program's full capabilities for optimizing designs. Presents a fully updated edition on OrCAD Capture, Version 17.2 Combines the theoretical and practical parts of PCB design Includes real-life design examples that show how and why designs work, providing a comprehensive toolset for understanding OrCAD software Provides the exact order in which a circuit and PCB are designed Introduces the IPC, JEDEC and IEEE standards relating to PCB design
Bogatin S Practical Guide To Prototype Breadboard And Pcb Design
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Author : Eric Bogatin
language : en
Publisher: Artech House
Release Date : 2021-09-30
Bogatin S Practical Guide To Prototype Breadboard And Pcb Design written by Eric Bogatin and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-30 with Technology & Engineering categories.
Printed circuit boards (PCB) are at the heart of every electronic product manufactured today. Yet, engineers rarely learn to design PCBs from a class or course. They learn it by doing, by reading app notes, watching YouTube videos and sitting by the side of an experienced engineer. This book is the foundation building book for all engineers starting out to design PCBs. It teaches good habits designing a PCB, first for connectivity, and secondly, introduces the four most important principles to reduce noise. A seven-step process is presented: developing a plan of record, creating a Bill of Materials, completing the schematic, completing the layout, completing the assembly, conducting bring up and troubleshooting and documenting the project. Each step is developed in detail. In particular, the emphasis in this book is on risk management: what can be done at each step of the process to reduce the risk of a hard-error which requires a complete re-spin, or a soft error, which requires some sort of on-the-fly repair. After connectivity is designed, it’s important to develop good habits to minimize the potential noise from ground bounce, power rail stitching noise, stack up design and reducing switching noise in signal paths. These techniques apply to all designs from 2-layer to 8-layer and more, for bandwidths below 200 MHz. The best practices for manual lead-free soldering are presented so that everyone can become a soldering expert. The best measurement practices using common lab instruments such as the DMM, the constant current/constant voltage power supply, and oscilloscopes are presented so that common artifacts are minimized. Features in the design that help you find design or assembly errors quickly and the troubleshooting techniques to find and fix problems are introduced. Applying the habits presented in this book will help every engineer design their next circuit board faster, with less chance of an unexpected problem, with the lowest noise. This textbook will also have embedded videos to visually demonstrate many of the hands-on processes introduced in this book.
High Temperature Electronics
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Author : F. Patrick McCluskey
language : en
Publisher: CRC Press
Release Date : 2018-05-04
High Temperature Electronics written by F. Patrick McCluskey and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-04 with Technology & Engineering categories.
The development of electronics that can operate at high temperatures has been identified as a critical technology for the next century. Increasingly, engineers will be called upon to design avionics, automotive, and geophysical electronic systems requiring components and packaging reliable to 200 °C and beyond. Until now, however, they have had no single resource on high temperature electronics to assist them. Such a resource is critically needed, since the design and manufacture of electronic components have now made it possible to design electronic systems that will operate reliably above the traditional temperature limit of 125 °C. However, successful system development efforts hinge on a firm understanding of the fundamentals of semiconductor physics and device processing, materials selection, package design, and thermal management, together with a knowledge of the intended application environments. High Temperature Electronics brings together this essential information and presents it for the first time in a unified way. Packaging and device engineers and technologists will find this book required reading for its coverage of the techniques and tradeoffs involved in materials selection, design, and thermal management and for its presentation of best design practices using actual fielded systems as examples. In addition, professors and students will find this book suitable for graduate-level courses because of its detailed level of explanation and its coverage of fundamental scientific concepts. Experts from the field of high temperature electronics have contributed to nine chapters covering topics ranging from semiconductor device selection to testing and final assembly.
Resilient Power Electronic Systems
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Author : Shahriyar Kaboli
language : en
Publisher: John Wiley & Sons
Release Date : 2022-08-15
Resilient Power Electronic Systems written by Shahriyar Kaboli and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-15 with Technology & Engineering categories.
Resilient Power Electronic Systems Discover an advanced reference offering a powerful novel approach to the design and use of reliable and fault-tolerant power electronic systems In Resilient Power Electronic Systems, a team of accomplished researchers deliver an insightful treatment of the challenges faced by practitioners and researchers working with power electronic converters and attempting to analyze internal and external failure mechanisms. The authors expertly present advanced techniques for reducing noise effects on fault detection and prognosis. Comprised of thirteen chapters, the authors discuss the concepts of resilience and effective operative life in the context of power electronics. The differences between reliable and efficient systems are discussed, as well as the nature of these differences in complex systems. Finally, the book explores various methods to improve the resilience of power converters. Resilient Power Electronic Systems is packed with features, including illustrations, practice problems, and PowerPoint presentations. The book also includes: A thorough introduction to the application of power electronics in various industries, as well as the concept of resilience in a power converter Comprehensive explorations of resilience against fault tolerance, including fault-tolerant power converters and resilient power converters Practical discussions of the state-of-the-art in resilient power converters, including examinations of mission-critical applications In-depth examinations of internal and external fault in power converters with mission-critical applications Resilient Power Electronic Systems is an indispensable resource for researchers, professionals, and postgraduate students studying power electronics. It’s also an ideal reference for research and development engineers working with the design and development of power electronic converters.