Micro-current electrical stimulation device

Discussion in 'The Completed Projects Collection' started by wayneh, Aug 15, 2016.

  1. wayneh

    Thread Starter Expert

    Sep 9, 2010
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    It would be awesome to share that here if you don't mind.
    Nice catch! Thanks for pointing it out. The schematic and the simulation is correct. It looks like I chose to use 3K resistors instead of the 10K in the simulation, but otherwise it's the reference. Looks like I put the wires from the 4017 to the op-amps in the wrong place on the drawing of the board. That's really disturbing but doo-doo happens. I wonder if anyone built one of these?

    The corrected drawing is in post #26.
    Thanks!
     
    Last edited: Feb 21, 2019
  2. Audioguru

    Expert

    Dec 20, 2007
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    Sorry, I was distracted in the middle of looking here at your link over there. But I can't find the "random noise …" thread anymore.
     
  3. iONic

    AAC Fanatic!

    Nov 16, 2007
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    Hey Wayneh
    Just saw your post on your electro-stimulation device. Was comparing it to some CES circuits I found some years back. Since then this same person added circuitry on TES. (CES - Cranial Electro Stimulation, TES - Trans-cranial Electro Stimulation)

    In case you are interested in them they can be found HERE. When on the site, select "Wetware_PDF" and "WetWare_Zip" look for CES & TES.
    There are several circuits and some that use Tiny13, 25 uC's.
     
  4. wayneh

    Thread Starter Expert

    Sep 9, 2010
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    Did you mean to provide a link?
     
  5. wayneh

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    I've reminded myself that the 3K resistors in my build set the minimum resistance the user can choose. They're in series with a ganged 10K pot, and the maximum resistance is thus 13K for each, which produces about 900µA as a maximum treatment current.
     
  6. iONic

    AAC Fanatic!

    Nov 16, 2007
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    wayneh likes this.
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