Amp. Op comparator

120

02:38:29

learning a about "Amp.Op" with comparator

published 3 years ago

Robert_Kidd

3 years ago

Put positive input at 0V.

Julianno

3 years ago

@Robert_kidd thanks for the help! You can explain for me,

Julianno

3 years ago

...why did my circuit not work?

592azy2circuitdude

3 years ago

The reason is that the positive input voltage determines the threshold value that the opamp compares to. Your previous circuit set the threshold at 12V. Thus the voltage signal would have to exceed 12V for the output to change (which in your case it didn't).

592azy2circuitdude

3 years ago

So actually your circuit was working... sort of. Just not the way you probably wanted! Hope this helps explain it a little. Good luck.

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