Titlebook: Digital Hardware Design; Ivor Catt,David Walton,Malcolm Davidson Textbook 1979Latest edition Ivor Catt, David Walton and Malcolm Davidson

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Energy Current,Oliver Heaviside, who had the advantage of being born later, had a better grasp of electromagnetics than did Faraday or Maxwell, and his view of how a digital signal travels is well worth study.

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Grounding in a Digital System,Consider a signal line from A to B, carrying a logic signal which is referenced to the machine frame at each end (see figure 11.1).

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Grounding in a System Comprising more than One Module,The best approach to a system with more than one module is to extend the technique discussed previously for a one-module system.

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Interference from the 50/60 Hz Line,Single phase power is supplied by a cable comprising three lines, live, neutral and ground (L, N and G). The live and neutral connect to the primary of one or more power transformers, and the ground line is connected to the frame of the machine for safety.

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Filtering the Line,Line filters are made up of capacitors and inductors.

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Oscilloscopes for Digital Measurements,The oscilloscope is still the most commonly used signal analysis instrument available to the digital engineer. It is therefore relevant to consider its use carefully so that the maximum amount of information can be obtained from the display. The applications of the oscilloscope for digital signal analysis fall into two main categories

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Die Genese des technischen Fortschrittsn from analog to digital techniques, with the consequent carrying over of well tried analog techniques into the digital environment. Unfortunately, the requirements for digital circuitry are frequently opposite to those needed by the analog variety, and hence there is a need for a complete reconsideration of the requirements.

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Introduction,relevant to current practice and technology in engineering. If this is not so, the student comes to industry armed with a set of scientific principles, and corresponding mathematical techniques, which are inappropriate to his work as a designer and which lead to disillusionment with science in gener