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Thread: Mastero MK-4.5 250w 12v DC-DC ATX PSU + SDC

  1. #1
    FLAC Mastero's Avatar
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    Mastero MK-4.5 12v DC-DC ATX PSU + SDC

    Hello Friends.

    MK-4.5 is comming soon....

    Specification:~

    Input

    8vdc ~ 30vdc (Can survive a Diesel motor start)

    Output

    +5vdc @ 12A (max)

    +3.3vdc @ 12A (max)

    +12vdc @ 10A (max)

    +5vstby @ 5A (max)

    -5v @ 500MA (max)

    -12v @ 500MA (max)

    PCB Size: 170mm x 110mm (wont fit standard atx psu case)

    Built in shut down controller.

    Shall post details soon..

    Cheers
    Mastero

  2. #2
    Raw Wave rando's Avatar
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    Sounds interesting. Keep up the good work!

  3. #3
    I see dead kittens Quattro's Avatar
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    250 watts sound impressive. Do you know what the cost might be?
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    Asus A7N8X-VM - AMD Mobile Athlon 2400
    512 Ram - 60GB HD - Opus 150w
    Lilliput 7" - Rikaline 6010
    [00000000000001100010-] 98% Completed

    Check Out My Install!!!

  4. #4
    MySQL Error MatrixPC's Avatar
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    Dam 250W that is impressive good work
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 600E@750/Abit BE6 II, Alpine M-BUS Car2PC.
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  5. #5
    I see dead kittens Quattro's Avatar
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    Mastero,
    Just wondering if you had any updates on the MK-4.5
    Installed
    Asus A7N8X-VM - AMD Mobile Athlon 2400
    512 Ram - 60GB HD - Opus 150w
    Lilliput 7" - Rikaline 6010
    [00000000000001100010-] 98% Completed

    Check Out My Install!!!

  6. #6
    Variable Bitrate
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    Is this gonna be another brute force attempt?

    By the time you get to a 400W supply the heatsink will need to be about 1 ft x 1ft

  7. #7
    FLAC Mastero's Avatar
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    Quote Originally Posted by MrPerfectionest
    Is this gonna be another brute force attempt?

    By the time you get to a 400W supply the heatsink will need to be about 1 ft x 1ft
    No there will not be a 400w supply ....

    It shall be a while before testing....about a week or two...

    Mastero

  8. #8
    I see dead kittens Quattro's Avatar
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    Thanks for the update. I'm just wating to buy a power supply ans a gps receiver before I start the installation.
    Installed
    Asus A7N8X-VM - AMD Mobile Athlon 2400
    512 Ram - 60GB HD - Opus 150w
    Lilliput 7" - Rikaline 6010
    [00000000000001100010-] 98% Completed

    Check Out My Install!!!

  9. #9
    Maximum Bitrate owenjh's Avatar
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    Wow, nice specifications, how is the shutdown controller going to work? will it be PIC based? also, how will this be avaliable? thru a kit or just schematic?
    Keep up the good work!
    CarComputer Status: New Car & Broken (Motherboard Fried)
    Owen JH | My Linux Blog | The Tech Fellows

  10. #10
    MySQL Error MatrixPC's Avatar
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    Mastero, just a suggestion for the next PSU.
    Can you add another component to the PSU that can send a pulse to turn on the PC. Right now we depend on the mobo that "Resume on power loss" for turn on. Most mobos have that option but there are some mobos don't have that option.
    I found the circuit from the12volt.com that use a relay, cap and resistor for constant to pulse.


    - Output of the Sproggy relay connect to Pin 86 on image (relay coil +).
    - Ground connect to the cap and resistor then to Pin 85 on image (relay coil -) .
    - 2 terminal of the ATX power sw can be connected to pin 87 and 30 on image (SPST-NO) pin of the relay.

    I tested that circuit on my mobo and it work very well.
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 600E@750/Abit BE6 II, Alpine M-BUS Car2PC.
    Y2K Accord Dell GX150
    RoadRunner is the best FE PERIOD
    EmoRebellion is a SCAMMER

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