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vios
- 16th September 2007, 16:09
Hello, it is my first post.

I want to modify simple voltage divider to have 2 simultanous outputs:
a) output 0 to 5v
b) output 5 to 0v
example : if the output a is 1v then output b is 4v, if output a is 2.5v , output b is 2.5v


5v----
I
> pot 10k
<----------> output a (0 to 5v)
> I
I I
gnd--- -------- ?????? -------> output b (5 to 0v)

can opamp be used as inverted voltage follower ?

thank you

mat janssen
- 16th September 2007, 18:06
Yes, you can use an opamp for this. The best is to use an opamp which has a rail to rail output . Than the output voltage goes to 0 and to max V
I post the schema here hoe to make it.

vios
- 17th September 2007, 05:18
Thank you for your help, Mat
Have a nice day !