4 bit BCD to 7 segment decoder circuit

[podgey]

Thanks for your help guys the links and posts have helped me tremendously, Id be so stuck with out it! Ive successfully converted each segment to nand operations.


Just one easy question, how can I type on windows my boolean expressions such as the not bars above letters etc

 

[Harald Kapp]

Use the built-in Windows math input panel, the math editor in microsoft office word (this is what I used) or chose among a variety of tools that are offered on the internet. Every tools is a bit different from the other, so it takes some time to get used to using one of them.

 

[podgey]

I cant find any other online tools for writing boolean expressions. I have tried the math input tool for windows but its driving me crazy as it keeps messing my equations up.

Any help please?

 

[Harald Kapp]

WinWOrd equation editor
Mathcast
TeX
...


Wikipedia is your friend

 

[podgey]

Apply the transformation A+B = NOT(NOT(A) AND (NOT(B)) step by step to get:

View attachment 24540

Use the same method for the other segments.

What did you use to type them out Harald, ive tried the programms you suggested but am struggling to get them working.

Thanks

 

[Harald Kapp]

I used the Winword equation editor.