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Thread: Whoo! Got Presslab's DC-DC convertor working!

  1. #1
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    Post Whoo! Got Presslab's DC-DC convertor working!

    It took about 8 hours of work, but I finished it!

    This was just an experiment on an old AT power supply. I'll order a tiny micro atx supply, mod that one, too, and have a working DC-DC supply for my car!

    Many, many thanks to Presslab!

    Here's some pics, I'll do a full writeup with lots of pictures and instructions when I get home from work tonight.

    http://mp3box.2y.net/ps/00.jpg
    http://mp3box.2y.net/ps/01.jpg
    http://mp3box.2y.net/ps/02.jpg
    http://mp3box.2y.net/ps/03.jpg
    http://mp3box.2y.net/ps/04.jpg
    http://mp3box.2y.net/ps/05.jpg

    [ 12-21-2001: Message edited by: Arby ]

  2. #2
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    Post

    http://www.mp3car.com/cgi-bin/ultima...c&f=9&t=000121

    Here's the original thread about it...

  3. #3
    FLAC
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    Post

    will some one post direction on how to make this stuff....I want to see if i create my own
    I mean, if Arby could create one, I see no reason why i can't create one myself

    [ 12-21-2001: Message edited by: Charles Enwesi ]
    abcd-1
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  4. #4
    FLAC
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    Way to go Presslab n Arby!!!
    Just one question, what is the V input range the modified PSU can handle??
    04 Acura TL w/ core2duo 2ghz laptop w/ 1gb RAM on a docking station.

    Fast car, fast PC. ;)

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  5. #5
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    Hey arby,

    was just wondering, 8hours of work? Allthough I've taken quite a long time, I don't think I've spend more then 1-2 hours soldering & rewinding? Have to say that I'm still not sure if mine will work ok, had a problem with the two 540's getting way to hot, presslab gave me some hints, did the adjustments just didn't get to testing yet.
    It's great to hear someone else has got it working. Who ever thought you could modify your old broken (I blew up the AC part some time ago, when the fan stopped working) ATX to a workind dc-dc psu for +/- $10 !!

    moahdib,
    If I rememerber correct presslab talked about a low of 6,5V dunno for sure, have to read the old topic.

    Marcel

    [ 12-21-2001: Message edited by: marsjell ]
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  6. #6
    Maximum Bitrate MikeHunt79's Avatar
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    I have this wierd atx psu... it has 3 seperate small transformers, instead of one large one. I was wondering if it is possible to do presslab psu mod on this psu, or does it have to be the single transformer type?

  7. #7
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    Originally posted by Arby:
    <STRONG>It took about 8 hours of work, but I finished it!

    </STRONG>

    Looking good Arby, congrats! It took me a better part of a day too, but it was worth it!

    Presslab

  8. #8
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    Originally posted by Mike Hunt 79:
    <STRONG>I have this wierd atx psu... it has 3 seperate small transformers, instead of one large one. I was wondering if it is possible to do presslab psu mod on this psu, or does it have to be the single transformer type? </STRONG>
    Mike,

    You probably can do my power supply mod to it. One transformer will be the main one, the next will be the +5V standby one, and the last might be a filter on the output, or possibly a feedback transformer. If you post pictures of it I can probably tell if it can work.

    Presslab

  9. #9
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    Originally posted by marsjell:
    <STRONG>Hey arby,

    was just wondering, 8hours of work? Allthough I've taken quite a long time, I don't think I've spend more then 1-2 hours soldering & rewinding? Have to say that I'm still not sure if mine will work ok, had a problem with the two 540's getting way to hot, presslab gave me some hints, did the adjustments just didn't get to testing yet.
    It's great to hear someone else has got it working. Who ever thought you could modify your old broken (I blew up the AC part some time ago, when the fan stopped working) ATX to a workind dc-dc psu for +/- $10 !!

    moahdib,
    If I rememerber correct presslab talked about a low of 6,5V dunno for sure, have to read the old topic.

    Marcel

    [ 12-21-2001: Message edited by: marsjell ]</STRONG>
    Marcel,

    Let me know if you need any more help, you're almost there.

    Presslab

  10. #10
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    arby or presslab,

    could one of you do me a favour and measure the voltage on the +12V & +5V output? mine are +26V and +8V, presslab said too try and connect an old HD or something and measure again, but I'm scared I'll blow up the hd, I don't have anything old that I can attach..

    thanx,

    Marsjell
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

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