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Adding voltage to a circuit — Parallax Forums

Adding voltage to a circuit

TGTG Posts: 36
edited 2008-06-14 20:59 in BASIC Stamp
I want to add voltage to the output of a potentiometer using a STAMP and a digital POT. For example the output voltage of the POT is 2.3V and I want to add .1 to 2Vs to that signal. Any ideas? I have tried using the Pots output tied into one side of the digital pot and having 5vs on the other side of the digital pot. Doesn't work to good.
Thanks in advance
Toby

Post Edited (TG) : 5/19/2008 10:22:18 PM GMT

Comments

  • TGTG Posts: 36
    edited 2008-05-19 22:48
    Looks like a Op-Amp will do it
  • RickHRickH Posts: 40
    edited 2008-05-20 01:19
    summing amp

    VCR---/\/\/\---|
    .....................|
    POT---/\/\/\---|
    .....................|
    opamp



    the . represents nothing.
  • RickHRickH Posts: 40
    edited 2008-05-20 01:19
    aww it dumped my spaces lol
  • CelticLordCelticLord Posts: 50
    edited 2008-06-14 20:59
    IN o----/\/\/---| \
    IN o----/\/\/---|·· \
    IN o----/\/\/---|··· |
    o OUT
    IN o----/\/\/---| · /
    IN o----/\/\/---| /
    Rick use another character for your spaces and change its color to white.

    Post Edited (CelticLord) : 6/14/2008 9:19:21 PM GMT
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