sequential (46) no realistic serial circuit (inverter)

 https://wodewangzhishime.blogspot.com/2022/06/httpswodewangzhishime_11.html .

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Ref: https://wodewangzhishime.blogspot.com/2022/02/bach-request-poison-gas-from.html.

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John: There're 2 pictures above. They are the circuit of inverter.

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Me: OK.

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John: Which one is correct?

Me: Logically, the 1st picture is correct.

John: Why?

Me: I show it to you in code.

John: OK.

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If (input side = Up cycle)

{

NPN = UP cycle and NPN = saturated.

PNP = UP cycle and PNP = cut off.

The output = 0.

}

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John: You're wrong. The 2nd picture is correct also.

Me: Why?

John: I show it to you in code.

Me: OK.

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If (input side = Up cycle)

{

NPN = Up cycle and NPN = saturated.

PNP = Down cycle and PNP = saturated.

The output = 1 or 0

}

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Me: When the input side is Up cycle, the gate of PNP is down cycle? It is impossible.

John: It is possible. Take a look at this article (https://wodewangzhishime.blogspot.com/2022/03/httpswodewangzhishime_14.html).

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Me: OK. I assume that it is possible. Then, what is the output of the 2nd picture?

John: It depend.

Me: How?

John: I show it to you in code.

Me: OK.

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if (resister A is higher than output)

{

Output = 1;

}

else if (resister A is lower than output)

{

Output = 0;

}