Engineering NAND Logic 4 input circuit with nonstandard output

AI Thread Summary
The discussion revolves around constructing a NAND logic circuit with four inputs (A, B, C, D) based on a specific boolean algebra expression. The output is zero unless both C and D are 1, A and B are 1, or more than two inputs are 1. The user has created a truth table to analyze the outputs but seeks guidance on general methods for approaching such problems. There is a request for others to share the boolean expression to facilitate further assistance. The conversation emphasizes the challenge of designing circuits using only NAND gates for complex boolean expressions.
YAHA
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Homework Statement



I have a weird boolean algebra expression for which I need to build a circuit using solely the NAND gates. There are 4 inputs A,B,C,D. From the truth table (I do not know how else to approach this question other than constructing the truth table and then trying to fit the output by playing around with gates) it seems that the output is zero unless C and D are both 1's or A and B are both 1's or more than two variables are 1's


Homework Equations





The Attempt at a Solution



Built the truth table. Aside from looking for tips to solve this, I am also looking to find out if there is some general method or rule of approaching these things.
 
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We don't see any truth table or expression.
 
YAHA said:
I have a weird boolean algebra expression for which I need to build a circuit using solely the NAND gates.
Post the expression.
 

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