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  1. #1
    Christophe Mineau's Avatar
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    Benchtop Power supply

    Yes, I know,
    yet another bench top power supply, made from a refurbished PC power supply...

    So here is mine :

    I just recall the principle :
    - gather all the same voltage / same color wires, distribute them across several banana sockets if you prefer
    - put the ATX "PS-ON" (sometimes Gray or green) wire to ground in order to start it up
    - Ideally, if you want more stability, put a permanent load : A 5W 5V resistor on the 5V output, will draw 1A permanently.
    - If you wish : add a power on LED ex : ~300 ohm in serial with a Red LED wired on 5V output.

    The performances are quite impressive :
    for this 400W power supply, it can deliver :
    5V : 35 A
    12V : 15 A
    3.3V : 22A
    less impressive but still useful to have :
    -5V : 0.5 A
    -12V : 0.8 V






    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

  2. The Following 4 Users Say Thank You to Christophe Mineau For This Useful Post:

    Komo (09-30-2017), Paul Jones (10-05-2017), rlm98253 (09-28-2017), Seedtick (09-29-2017)

  3. #2
    Content Editor DIYer's Avatar
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    Thanks Christophe Mineau! We've added your Benchtop Power Supply to our Power Supplies category,
    as well as to your builder page: Christophe Mineau's Homemade Tools. Your receipt:




  4. #3
    Solextract's Avatar
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    But, it's such a great solution for when you need low voltage DC with high amperage! I use one to power my LED strips. ...because I like to play with 50 ft of neopixels at a time.

    You did a great job designing yours.. and providing documentation for others to follow. I think people are going to find this really helpful .

    I don't get the final picture.. you have DMM included, but it's turned off. You have a light plugged in and turned off. It's like you wanted to demonstrate it, but changed your mind.

  5. #4
    Christophe Mineau's Avatar
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    Quote Originally Posted by Solextract View Post
    But, it's such a great solution for when you need low voltage DC with high amperage! I use one to power my LED strips. ...because I like to play with 50 ft of neopixels at a time.

    You did a great job designing yours.. and providing documentation for others to follow. I think people are going to find this really helpful .

    I don't get the final picture.. you have DMM included, but it's turned off. You have a light plugged in and turned off. It's like you wanted to demonstrate it, but changed your mind.
    Hi ,
    thanks for your message !
    No the last picture was just the only one I had kept with the box closed and LED turned on.
    Actually, I was setting up my last project which is the wildelife camera on the left, but the photo was just to show the power supply.
    I should have cropped it ;o)
    BR
    Christophe


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    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

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