Refer to Figure 4-8(a), where an analog-to-digital converter is monitoring the dc voltage (V B ) of

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Refer to Figure 4-8(a), where an analog-to-digital converter is monitoring the dc voltage (VB) of a 12-V storage battery on an orbiting spaceship. The converter’s output is a four-bit binary number, ABCD, corresponding to the battery voltage in steps of 1 V, with A as the MSB. The converter’s binary outputs are fed to a logic circuit that is to produce a HIGH output as long as the binary value is greater than 01102 = 610; that is, the battery voltage is greater than 6 V. Design this logic circuit.


Figure 4-8

A BUD Analog A B to- digital C converter (c) MSB LSB A B Logic C circuit D (a) z = A + BCD Z AO  (0) 0 OOOO 0

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Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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