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  1. 30th October 2014, 06:11 PM #1
    neksmerj
    neksmerj is offline Product designer retired
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    Default modified computer power supply?

    Have tried the search function, but couldn't find that post where one of our members showed how to modify a computer supply for general use.

    It might have been in an electrolysis post, even a search there turned up zilch.

    How's your memory?

    edit, stop, stop, stop, just found it and couldn't figure out how to delete this post.

    Ken
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  3. 30th October 2014, 06:23 PM #2
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    wheelinround
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    Link please I thought it was in CNC I recall another about 12v drills and use of computer power supply
  4. 30th October 2014, 07:07 PM #3
    WesP
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    http://www.dansworkshop.com/index.shtml

    May try this one. Lot's of stuff and bench power supply hacked from ATX as well.

    Cheers,

    Wes
  5. 30th October 2014, 08:01 PM #4
    simonl
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    Default

    memory serves me correct, it was a thread by Nearnexus (Rob)

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
  6. 30th October 2014, 09:15 PM #5
    neksmerj
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    Default Link please

    Simonl, can you find a link to that thread?

    Ken
  7. 30th October 2014, 09:42 PM #6
    simonl
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    I'll have a look. I was purely going from memory.

    There was also an article some 8 years ago in Silicon Chip Magazine to convert an AT computer power supply to a 13.8V 20A DC supply. It require a substantial amount of rewiring but doable with some patience.

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
  8. 30th October 2014, 09:43 PM #7
    simonl
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    Got this one from Bob L but it's probably the one you found:

    https://www.woodworkforums.com/showth...computer+power

    I'll keep looking….
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
  9. 30th October 2014, 09:46 PM #8
    simonl
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    There's a website called instructables. I have read quite a bit in the past on their site. They have some well written articles. Including this:
    http://www.instructables.com/id/Conv...gular-DC-Powe/

    Edit: and this: http://www.instructables.com/id/Conv...Bench-Top-Lab/
    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
  10. 30th October 2014, 10:07 PM #9
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    wheelinround
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    Thanks gents I was being lazy
  11. 30th October 2014, 11:10 PM #10
    BobL
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    Here's another I did in June of 2013, complete with 12V downlight indicator with peanut paste jar liampshade
    https://www.woodworkforums.com/showth...93#post1668093
  12. 31st October 2014, 02:15 PM #11
    grunto
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    Dangerous Prototypes make a nice PCB for ATX power supply conversions. See this page for some of the builds:

    http://dangerousprototypes.com/category/atx-bb/

    You can buy the PCB from SeeedStudio for about $14USD:

    http://www.seeedstudio.com/depot/ATX...html?cPath=1_4
  13. 31st October 2014, 02:59 PM #12
    simonl
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    Sorry, I couldn't find any thread done by nearnexus, I must have been mistaken. Looks like there is plenty go info for you to work with anyway.

    Cheers,

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
  14. 31st October 2014, 05:41 PM #13
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    Oldneweng
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    In what way do you want to modify the power supply? For 12v, 5v etc you can just connect to them.

    I discussed connecting 2 power supplies together to produce 24v in my "Mill Power Feed" Thread.

    Dean
  15. 31st October 2014, 07:38 PM #14
    BobL
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    Quote Originally Posted by Oldneweng View Post
    In what way do you want to modify the power supply? For 12v, 5v etc you can just connect to them.
    Computer power supplies need a constant small load applied at start up to stay switched on. If this is not there then they will not turn on.
  16. 31st October 2014, 10:42 PM #15
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    Oldneweng
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    Quote Originally Posted by BobL View Post
    Computer power supplies need a constant small load applied at start up to stay switched on. If this is not there then they will not turn on.
    Right. If this was not mentioned in my thread it was discussed on one of the web sites I linked to, if I remember correctly.

    Dean
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