Help with my Karnaugh map circuit: it does not work

[Noob of the Maths]

Homework Statement

Karnaugh map

Relevant Equations

ng

Hi! Good night ;)

I have made the simplification of my circuit from the truth table using maps of.
Everything looks good, however the simulation does not work in many cases according to the truth table.

I notice that my boolean equation taken from the maps looks very big, is there the error?

If it is ok, the error is my circuit?

Thanks for read!

 

[DaveE]

One of the problems with social media sites like PF is that you are getting feedback from volunteers. They may choose to help or not depending on their own level of interest and the difficulty required. So, you will get more and/or better responses if you make your questions easy to understand.

I do know about K-maps and I am confident I could solve this problem. But, the way you've asked is frankly more confusing than the engineering required. I don't know what A, B, C, and D are or how they relate to the other table or the schematic (eg. what does D1 indicate). I suppose I could probably figure it out with reverse engineering, but I'm just not motivated enough right now given how confusing you've made it. When understanding the question is harder than solving the problem, I'll tend to move on.

So, maybe you could add some more detail about what you are doing and why? Maybe you could define some of the labels you've introduced?

Finally, boolean expressions that are derived from truth tables can be very big before they are reduced with logic. For example: $xyz + xy\bar{z} + x\bar{y}z + x\bar{y}\bar{z} = x$

 

[berkeman]

Agreed.

For example, the circuit looks like ABCD are the inputs, but your truth table has different inputs and some inputs at the outputs?

 

[Noob of the Maths]

Agreed.

For example, the circuit looks like ABCD are the inputs, but your truth table has different inputs and some inputs at the outputs?

View attachment 298211

Yes, that's because the names corresponding to thins like "valve" "high level" "temperature" etc. but yes, it is ABCD

 

[berkeman]

Yes, that's because the names corresponding to thins like "valve" "high level" "temperature" etc. but yes, it is ABCD

Then what are the outputs?