Answer to Question #272822 in Electric Circuits for Shey

Question

Design a combinational circuit with four inputs— A, B, C, and D —and one output, F . F is to be equal to 1 when A = 1, provided that B = 0, or when B = 1, provided that either C or D is also equal to 1. Otherwise, the output is to be equal to 0. 1. Obtain the truth table of the circuit. 2. Simplify the output function. 3. Draw the logic diagram of the circuit, using NAND gates with a minimum number of ICs. 4. Construct the circuit and test it for proper operation by verifying the given conditions.

Answer 1

 output equation:

A’B’C’D’+A’B’CD’+A’BC’D’+A’BCD’+AB’C’D’+AB’CD’+ABC’D’+ABCD’