Question

Need help with this. Circuits need to be done on Multisim. I will give you a good rating if you can help me out.

1. Consider a two-diode AND logical gate circuit. Calculate and build a table showing the values of output voltages for 4 different combinations of input voltages.
2. Simulate the circuit in Multisim for all above values of the input voltages, and observe the actual values of the output voltage. Add the simulation results to the table, compare, analyze, draw conclusions.
3. Create a new circuit by connecting second similar AND gate to the output of the first and using another voltage as the second input to the second gate. Repeat simulation (2) with the constant another voltage at “high” and all four values of the first gate input voltage from the table in (1). Compare with (2) and draw conclusions

Answer 1

Here is the simulations done in MULTISIM,

Let the input of AND gate be named as A and B. The output of AND gate is HIGH (1) only when both the inputs

A and B are HIGH together.

A	B	A.B
0	0	0
0	1	0
1	0	0
1	1	1

There are total four states, So there are total four simulation results. Note the 5V corresponds to 1 and 0V corresponds to 0

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We can see that diode circuit obey's the AND gate truth table.

second part of question is not very much clear, however I will draw the schematic.

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