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Combinational Switching Circuits

# Combinational Switching Circuits - Luke Wyatt Combinational...

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Luke Wyatt Combinational Switching Circuits 26/10/07 Combinational Switching Circuits Risk Assessment The experiment had some very low risks. These are outlined below 1. Electrical Test 1 INPUT X INPUT Y 0 1 1 0 Y X = This result was experimentally true Test 2 X Y Z Combination Gate Name 0 0 1 Nand . X Y 0 1 0 1 0 0 1 1 1 X Y Z Combination Gate Name 0 0 0 And . X Y 0 1 0 1 0 0 1 1 1 X Y Z Combination Gate Name 0 0 0 OR X Y + 0 1 1 1 0 1 1 1 1 1 of 8

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Luke Wyatt Combinational Switching Circuits 26/10/07 X Y Z Combination Gate Name 0 0 1 NOR X Y + 0 1 0 1 0 0 1 1 0 These results have proven to be experimentally true, and show that all forms of logic gates can be reproduced using only Nand gates and not gates (Invertors) Test 3 The output Z is true when both X and Y are false or when both are true. This is explained algebraically as:- . . Z X Y X Y = + This circuit is proven to be experimentally true 2 of 8 X Y Z 0 0 1 0 1 0 1 0 0 1 1 1 X Y Z 0 0 1 0 1 0 1 0 0 1 1 1
Luke Wyatt Combinational Switching Circuits 26/10/07 The output Z is true when X is false and Y is true and when X is true and Y is

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Combinational Switching Circuits - Luke Wyatt Combinational...

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