RALPH MORRISON

Author of:

Grounding and Shielding:
Circuits and Interference
Fast Circuit Boards:
Energy Management
Digital Circuit Boards:
Mach 1 GHz
The Fields of Electronics:
Understanding Electronics
Using Basic Physics



 

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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.

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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

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.

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  • 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

A unique, practical approach to the design of high-speed digital circuit boards.

The demand for ever-faster digital circuit designs is beginning to render the circuit theory used by engineers ineffective. Digital Circuit Boards presents an alternative to the circuit theory approach, emphasizing energy flow rather than just signal interconnection to explain logic circuit behavior.

The book shows how treating design in terms of transmission lines will ensure that the logic will function, addressing both storage and movement of electrical energy on these lines. It covers transmission lines in all forms to illustrate how trace geometry defines where the signals can travel, then goes on to examine transmission lines as energy sources, the true nature of decoupling, types of resonances, ground bounce, cross talk, and more.

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  • Reviews in simple terms the basic physics necessary to understand fast logic design
  • Debunks the idea that electrical conductors carry power and signals, showing that signal travels in the spaces, not the traces, of circuit boards
  • Explains logic circuit behavior through real-time analysis involving the fields and waves that carry signal and energy
  • Provides new information on how ground/power planes work
  • Outlines a software program for solving energy flow in complex networks