STUDENT looking for help!!

[mossy]

Just wondering here, i'm triggering a counter, how do i make a comparator have an adjustable trigger?? add more Res's and Cap's?

 

[Optikon]

Just wondering here, i'm triggering a counter, how do i make a comparator have an adjustable trigger?? add more Res's and Cap's?

Your description is severly lacking in describing what you want to do. But I'll take a stab at reading your mind.

To adjust the threshold voltage in a comparator circuit (trigger?), you can use a voltage divider where one of the resistors is a potentiometer.(adjustable!) that give you an adjustable "trigger" point.

If you provide your schematic, someone can provide a markup of what you need. Otherwise, its just mind reading and describing circuits with english. Good luck.

 

[i_build_stuff]

Adjust the reference voltage that you're comparing against.

 

[mstechca]

Just wondering here, i'm triggering a counter, how do i make a comparator have an adjustable trigger?? add more Res's and Cap's?

Why not just make an astable multivibrator?
a 555 timer will work nicely as your counter clock.

and nice avatar :wink: