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Related

Adjustable Dual Polarity Power Supply

flemmng
flemmng over 7 years ago

Im looking for DIY kits or schematics for a  Adjustable Dual Polarity Power Supply

I know about the LM317/LM337 setup but i wonder if there is something better than that, so far i haven't found anything useful

I don't really need high precision or super specs, just a hobby supply to revive my old interest and skills in electronics

Please advice

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Top Replies

  • jw0752
    jw0752 over 7 years ago in reply to flemmng +5
    Hi Flemming, When I want better control I use a 10 turn pot. Most of the time I use smaller controls as that is what fits on my panels and looks good. If you haven't already looked at it here is a link…
  • shabaz
    shabaz over 7 years ago +4
    Hi Flemming, There are schematics (and board CAD files as soon as I upload them - let me know if you need them anytime soon) for a dual-rail supply here: Building a Linear Power Supply Module It is fixed…
  • flemmng
    flemmng over 7 years ago +4
    Hi John A very fine "box" you put together there. Looking good on the inside too. I do agree with your thoughts on that -why reinvent the wheel again. I might have used a different layout on the front…
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  • flemmng
    flemmng over 7 years ago

    Hi John

     

     

    A very fine "box" you put together there. Looking good on the inside too.

    I do agree with your thoughts on that -why reinvent the wheel again.

     

    I might have used a different layout on the front, placing the units on top of each other instead of beside each other, that would have made room for bigger knobs

    I found those boards too and along with some other interesting kits, still waiting for delivery.

     

    Flemming

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  • jw0752
    jw0752 over 7 years ago in reply to flemmng

    Hi Flemming,

     

    I really look forward to seeing your power supply. It is always interesting to see the creativity and innovation that each engineer brings to these builds.

     

    John

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  • jw0752
    jw0752 over 7 years ago in reply to flemmng

    Hi Flemming,

     

    I really look forward to seeing your power supply. It is always interesting to see the creativity and innovation that each engineer brings to these builds.

     

    John

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