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 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.
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.
Fabricating Printed Circuit Boards
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Author : Jon Varteresian
language : en
Publisher: Newnes
Release Date : 2002
Fabricating Printed Circuit Boards written by Jon Varteresian and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Education categories.
CD-ROM contains: PC board tools -- Electrion version of text.
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.
Op Amps For Everyone
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Author : Ron Mancini
language : en
Publisher: Newnes
Release Date : 2003
Op Amps For Everyone written by Ron Mancini and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.
The operational amplifier ("op amp") is the most versatile and widely used type of analog IC, used in audio and voltage amplifiers, signal conditioners, signal converters, oscillators, and analog computing systems. Almost every electronic device uses at least one op amp. This book is Texas Instruments' complete professional-level tutorial and reference to operational amplifier theory and applications. Among the topics covered are basic op amp physics (including reviews of current and voltage division, Thevenin's theorem, and transistor models), idealized op amp operation and configuration, feedback theory and methods, single and dual supply operation, understanding op amp parameters, minimizing noise in op amp circuits, and practical applications such as instrumentation amplifiers, signal conditioning, oscillators, active filters, load and level conversions, and analog computing. There is also extensive coverage of circuit construction techniques, including circuit board design, grounding, input and output isolation, using decoupling capacitors, and frequency characteristics of passive components. The material in this book is applicable to all op amp ICs from all manufacturers, not just TI. Unlike textbook treatments of op amp theory that tend to focus on idealized op amp models and configuration, this title uses idealized models only when necessary to explain op amp theory. The bulk of this book is on real-world op amps and their applications; considerations such as thermal effects, circuit noise, circuit buffering, selection of appropriate op amps for a given application, and unexpected effects in passive components are all discussed in detail. *Published in conjunction with Texas Instruments *A single volume, professional-level guide to op amp theory and applications *Covers circuit board layout techniques for manufacturing op amp circuits.
Basic Linear Design
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Author : Hank Zumbahlen
language : en
Publisher:
Release Date : 2005-01-01
Basic Linear Design written by Hank Zumbahlen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-01 with Electric circuits, Linear categories.
Signal Integrity Issues And Printed Circuit Board Design
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Author : Douglas Brooks
language : en
Publisher: Prentice Hall Professional
Release Date : 2003
Signal Integrity Issues And Printed Circuit Board Design written by Douglas Brooks and has been published by Prentice Hall Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computers categories.
Complicated concepts explained succinctly and in laymen's terms to both experienced and novice PCB designers. Numerous examples allow reader to visualize how high-end software simulators see various types of SI problems and then their solutions. Author is a frequent and recognized seminar leader in the industry.