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Thread: power to noncarputer device

  1. #1
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    power to noncarputer device

    Hi all,

    Awesome forums. I've tried doing a search, but have failed as most of the talk on here is for carputers. Also, the lingo is unfamiliar, so doesn't make life any easier.

    I want to install a western digital media player to my car so i could plug in a usb stick with mp3s and movies. However, the player is powered via 3 prong plug.

    What's my best option to power this up safely? I was leaning toward a power inverter, but maybe there are better solutions out there.

    thanks in advance,

    mike

  2. #2
    FLAC WuNgUn's Avatar
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    3 prong plug, as in 120V AC plug??
    It probably runs into a transformer and most likely runs on 12V...
    Do you have any pics?

  3. #3
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    sorry. Lied completely, just opened the box.

    2 prongs,

    Input: 100-240V~ 50-60Hz, 0.5A Max
    Output: 12V - 1.5A

  4. #4
    Low Bitrate Meltz014's Avatar
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    Quote Originally Posted by yungwunn911 View Post
    sorry. Lied completely, just opened the box.

    2 prongs,

    Input: 100-240V~ 50-60Hz, 0.5A Max
    Output: 12V - 1.5A
    Those Input/Output readings are on the power brick, right? Since it's running off of 12 volts, you could probable get by with cutting at the "X" (if this is somewhat like your configuration):

    [device]=========X======[brick]=========={ (<---plug)


    ...then soldering the two wires you cut to a dc outlet in your dash. It is very important that you know which wire is which (+ vs. -) and to solder them accordingly. You may need to bust out a multimeter to make sure...also perhaps wait for some other replies, as I don't want to be held responsible for any mishaps

  5. #5
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    Quote Originally Posted by Meltz014 View Post
    Those Input/Output readings are on the power brick, right? Since it's running off of 12 volts, you could probable get by with cutting at the "X" (if this is somewhat like your configuration):

    [device]=========X======[brick]=========={ (<---plug)


    ...then soldering the two wires you cut to a dc outlet in your dash. It is very important that you know which wire is which (+ vs. -) and to solder them accordingly. You may need to bust out a multimeter to make sure...also perhaps wait for some other replies, as I don't want to be held responsible for any mishaps

    That's a fairly bad idea, car power is unregulated and very dirty... You're gonna get between as low as 9 volts (on cranking) up to 14-16 volts at peak, so if the device isn't expecting this (which it likely isn't, as it has a power brick) you could burn something up.

  6. #6
    FLAC WuNgUn's Avatar
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    Maybe find a cig-lighter adapter and splice into it...I think they at least have some sort of regulation...

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    ciould anyone tell me the approx wattage that this product will use? is it 18W? so i should get a 100W max power inverter? thanks!

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    Get a DC/DC regulator, not an inverter

    Go to Radio Shack and get a cigarette power charger that fits the device and provides 1.5A at 12V. More amps is fine, less will cause problems. Your device does not draw much power.

    Most inverters, that is the cheap ones (under $100), may introduce noise into the system due to ground loop problems.

    Just my 2 cents and personal experience...

  9. #9
    FLAC WuNgUn's Avatar
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    Yeah, inverter is overkill for something like that...

  10. #10
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    Quote Originally Posted by Thefdog View Post
    Go to Radio Shack and get a cigarette power charger that fits the device and provides 1.5A at 12V. More amps is fine, less will cause problems. Your device does not draw much power.

    Most inverters, that is the cheap ones (under $100), may introduce noise into the system due to ground loop problems.

    Just my 2 cents and personal experience...
    Get a DC adaptor from Radio Shack that has a plug that fits your device. It doesn't draw much power (about 18 watts), so a 2 or 3 amp plug is all you need.
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