Activity:
Part 1:
1. Refer below figure, where an analogue to digital converter is monitoring the dc voltage of
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 6V.
a) Construct the truth table.
b) Write down the Boolean expression.
c) Develop the K-map for the above expression.
d) Analyse and optimize the Boolean expression using SOP and POS method.
e) Enhance the logic circuits for above SOP and POS expressions.