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Thread: PSU as 5V and 12V power supplier

  1. #1
    Constant Bitrate teo256's Avatar
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    PSU as 5V and 12V power supplier

    Hi all, i'm going to install a Sound Blaster Audigy 2 ZS Video Editor in my car. It is an external USB audio card that need external power to swith on. On the Adapter (for 100/220 V) theese are the outputs:

    5 Vdc (4A)
    12 Vdc (2A)

    I don't want to use an inverter 12/220 in my car. So i have an idea: i could use a CarPc PSU (i have an unused MOREX) that have both 12V and 5V outputs (see attachment for details).

    Can be this a good idea? And what about the ampere?

    Thanks, teo256
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  2. #2
    FLAC FC3S's Avatar
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    i dont like pdfs, so im not going to open it

    but a lot of people have done this, as to the amps, it depends what the power supply is capable of outputting, most can get about 8amps on the 12v line, (not so sure about the 5), but as long as the power supply can handle those amps on those lines, then by all means, splice into the lines

  3. #3
    FLAC FC3S's Avatar
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    (and all power supplies have 12v and 5v, they probably wont be seperate, so on the morex power lines yellow = 12v, black = ground, red = 5v)

    for the 12v power, one black one yellow
    for 5v power, one black one red

  4. #4
    Constant Bitrate teo256's Avatar
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    here you are shots from pdf:



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  5. #5
    MySQL Error MatrixPC's Avatar
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    Remember, you have to feed the PSU with regulated 12V.
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  6. #6
    Constant Bitrate teo256's Avatar
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    Quote Originally Posted by MatrixPC
    Remember, you have to feed the PSU with regulated 12V.
    I know that, this is not a problem.
    I'd like to know if using 12V and 5V PSU's outputs, i can power the Sound Blaster....
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