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Thread: Need a quick clarification regarding Power Supply

  1. #1
    Constant Bitrate
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    Need a quick clarification regarding Power Supply

    Okay I understand that i need a way to convert AC-DC

    I understand that an ITPS will automatically startup and shutdown the computer...

    now i've been on ebay looking for parts... and found a 200 watt 12 Volt ATX DC to DC Power convertor... but it states that i still need am "AC/DC Power Brick"

    what is an AC/DC power brick?

    I thought that the purpose of the DC to DC power supply is so i can skip the AC/DC inverter?

    can someon eplease clarify?

    thanks

  2. #2
    Maximum Bitrate mushin's Avatar
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    An AC/DC power brick converts AC to DC (think wall wort). They're assuming you're starting with AC power, and thus the brick. You don't need it. You DO need to regulate the power though, because the power in the car is quite dirty. You can find all the info you'll need about power regulation elsewhere in the forums.

  3. #3
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    Whats the difference between the 12v 200w miniature power supply and the OPUS products?


    TIA
    tommy

  4. #4
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    The 12v mini's are not regulated. The Opus is. The 12v mini will not turn your pc on and off for you automatically with your cars ignition, the opus will (and you can set a delayed shut down timer with the opus.)

  5. #5
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    ahh i see...

    now what if i get the ITPS along with the 12v mini? Will that regulate it and auto start/shut? I understand it prolly won't do the shut down timer.

  6. #6
    Raw Wave Confused's Avatar
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    If you get the ITPS with the "200W" mini psu then there will be 2 possibilities:

    1) It will work perfectly, and will regulate your voltage and start up/shut down the PC.


    However in reality what will happen is:

    2) Your computer won't run without the engine on, you'll get regulated power of only 60W, it may start up and shut down properly. If you bypass the regulator then you will be sending anywhere from 8-15V into your components that are expecting 12V, and you will kill things.


    Get the Opus, it's worth the extra money because it actually works, every time.


    Garry
    Co-Developer of A.I.M.E.E
    www.aimee.cc

  7. #7
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    thanks confused,

    what if my components consume less than 50w of power? Think i'll be safe then? Assuming of course the calculations are correct (using MII board with 2.5HD)

  8. #8
    Raw Wave Confused's Avatar
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    Get hold of a Morex 60W DC-DC PSU and a Carnetix CNX-P1260


    Garry
    Co-Developer of A.I.M.E.E
    www.aimee.cc

  9. #9
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    *writing notes down*

    thanks! i'll go ahead and hunt those items down

  10. #10
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    Just out of curiosity has anyone taken the opus 150 apart? I'm trying to cram the components of it into a case but I'm not sure if I want to physically disassemble it yet...

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