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Thread: powering question

  1. #1
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    Apr 2003
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    Question powering question

    I am now ready to install and mount my carputer in my car. I have placed my Cubid 2699R case in my glove box (it fits perfectly!) and im questioning on powering. I have the DC-DC powersupply in my cubid case, but I thought it would be easier to use an inverter...So if I plug my TFT screen into my inverter and my powersupply into my inverter, then splice the inverter wires and hook up a switch to it, and then from the switch hook it the positive wire to the radio fuse or a different fuse that's "always on" and ground the negative wire...would the switch work? Would i need a certain gauged wire? Im a little concerened about the best way doing this, I can take pics if it would help. Thank you so much for your time, you guys are great! Thanks again!!
    www.aaroncolejr.com/projects/carputer.swf

  2. #2
    FLAC samc's Avatar
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    I'm not really sure what your asking. And what do you mean connecting your screen to an inverter?

    Anyway, look up "relays" that way your stuff can go on when you turn the key in the ignition.
    Mine needs to be updated.

  3. #3
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    my computer supply has an ac power plug, as does my tft monitor, i was going to plug both of these into an inverter. Id splice the ends of the inverter where the ciggarette plug is and plug the positive and negative into a switch then from their plug the positive into a fuse in my fuse panel and ground the negative. Would this work, or is this even a good idea?
    www.aaroncolejr.com/projects/carputer.swf

  4. #4
    FLAC samc's Avatar
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    how about this


    <12v+> ~~> fuse ~~> switch ~~> positive line on inverter ~~> <<inverter>> ~~~> ground wire.
    Mine needs to be updated.

  5. #5
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    is there a certain gauge wire i should be concerned about?
    www.aaroncolejr.com/projects/carputer.swf

  6. #6
    Maximum Bitrate
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    not really. if you're splicing into your cig lighter adapter, just remember that you will never be able to use it as a lighter again Push it in and you'll likely blow the circuit

    The lines going to a cig lighter are actually pretty thin as it is, so use at least guage 12, I don't think that 8 guage would be necessary but 12 or below should do fine.

    Check out this chart for conversion information.
    IN DEVELOPMENT -- '96 Mustang, lilliput with PII/450 laptop, custom DC-DC power supply, 60GB; Garmin GPS; 802.11g; compact keyboard, small graphical LCDs, OBDII.

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