Design a logic circuit whose output is HIGH when a majority of inputs A, B and C are LOW.

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Complete the following with the step-by-step procedure.

  1. Interpret the problem and set up a truth table to describe its operation.
  2. Write the AND (product) term for each case where the output is 1.
  3. Write the sum-of-products (SOP) expression for the output.
  4. Simplify the output expression if possible.
  5. Implement the circuit for the final, simplified expression.

 

Design a logic circuit whose output is HIGH when a majority of inputs A, B and C are LOW.

 

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