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Thread: Diy 400w Psu

  1. #1
    Low Bitrate MibMib's Avatar
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    Diy 400w Psu

    hmm I am trying to develop some one! It's will be fully isolated no need GLI......no engine noise ........ and I am think to take power for hubs and screen from this device ......
    Is this a good idea or I am really crazy ?

    News:
    1.Ok! I have developed it
    2. 400w Pilot PSU beta-testing units only for preordering, price is 180$
    3. 200W Light version, non isolated, high protected is in development stage. I tryed to do this - but it's not a good construction, but :
    4. 07.21.2007 I have made redesign of 400w psu - smaller price and changes of internal components interaction and schematic. new pics and user guide will be soon.

    5. 11.09.2007 ok! here is pic of version 3.1
    Attachment 46152
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  2. #2
    Raw Wave Rob Withey's Avatar
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    I think it is a great idea. Even better if you can deliver unlike so many that have posted the same idea and failed in the past.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  3. #3
    Low Bitrate MibMib's Avatar
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    I tried to use a search , but found nothing . Please help me to find some threads about this idea.
    Rob Withey And why that peoples was failed in the past.... which reasons?

    Thanks
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  4. #4
    Raw Wave Rob Withey's Avatar
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    I have no idea why previous attempts have failed. What usually happens is that someone says they are going to design a power supply to beat all power supplies, we get several pages of schematics, sometimes photos of prototypes, and then the original poster abandons the thread and/or disappears off the face of the earth.
    Much respect to you if you manage to pull this off.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  5. #5
    Low Bitrate MibMib's Avatar
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    I'm so crazy %) and i'll try to make this............... but i dont know will this device work or not
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  6. #6
    Constant Bitrate
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    Quote Originally Posted by Rob Withey View Post
    What usually happens is that someone says they are going to design a power supply to beat all power supplies, we get several pages of schematics, sometimes photos of prototypes, and then the original poster abandons the thread and/or disappears off the face of the earth.
    they guys at opus and minibox must have their own hit squads!


  7. #7
    Raw Wave Rob Withey's Avatar
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    150w - thread died : small size 150W(7-18v) with shut down controller
    300w - thread died : 300W tiny PSU final feature requests collecting
    Thread died : `NEW' Small DC-DC ATX Power Supply
    Thread died : AT/ATX DC-DC Big Cahoona Power Supply Plans.
    etc, etc...

    You get the picture.

    Best bet might be Sproggy/Mastero derived design.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  8. #8
    Low Bitrate MibMib's Avatar
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    Rob Withey
    wow great thanks to you!
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  9. #9
    Low Bitrate MibMib's Avatar
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    Wow i build it ! ...... But need some tests! Today i find some bugs in it and i'll fix it later, and later i'll post pics and specifications. This PSU WILL NOT SUPPORT stand by mode, because i read many threads about dryed batteries. Then i made PSU which in off-state don't takes any current- NO any MICROAMPS - i think it's great. I think hibernate - is very good choice, and it's work fine.
    What about controller ?
    Here is a simplest controller - 5 seconds before startup , and 15 seconds before shutdown, it monitors voltage of battery, and have a rem output to control amp or lcd - it takes hi state after 0.5 sec of carputer on , and low state before carputer shutdown. When it shutdowning, it waits 40 sec , if windows isn't shutdown- controller shutdown all system hardly.

    This psu fully isolated - no more buzzing or interferrence No need ground loop isolator.
    You can( to avoid ground loops - must) powers from it usb devices and lcd monitor.
    Ok today i tested it on this hardware at home

    proc. Celeron D 2133MHz (overclocked about 3200)
    mb. asus p4s800
    video geforce 2 mx400
    mem. don't know manufacturer - 256M
    HD. WD 80gb
    cd- samsung 52x
    dvd liteon combo drive
    modem conexant56 soft internal

    so it's work great

    hmmm........
    i think i'll really finish this project
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  10. #10
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    how about a circuit diagram or something??
    i'm assuming you mean you power this off 12v-13.8v power supply??
    this isn's inverting the power to 244 is it?

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