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Cnx-p1900 19.5v?

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  • Cnx-p1900 19.5v?

    I need a shutdown controller and DC power supply for my Sony Vaio Laptop. It requires 19.5V 4A.
    The CNX-P1900 looks like it outputs at even voltages 19V,20V. Will 19 or 20 V work is the laptop wants 19.5?
    Any other shutdown controller that does 19.5V?
    My BMW E46 carpc
    My iGuidance 4 skin
    FS transflective 2008 lilliput

  • #2
    Yeah it should work fine.

    Comment


    • #3
      Originally posted by rgarjr View Post
      Yeah it should work fine.
      Agreed

      You could drop the 20 across a diode to drop a partial volt,, a silicon diode will drop it 0.7v to 19.3vdc.

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      • #4
        Thanks. Would this be a better way to go then getting a DC-DC 12V supply and then using a 19.5V laptop car adapter?
        My BMW E46 carpc
        My iGuidance 4 skin
        FS transflective 2008 lilliput

        Comment


        • #5
          The P1900 install doc says it puts out +19.5V when jumpers are set for +19V.
          Mine is set for +18V, but tests at +18.5V

          Here it is verbatim:

          "JP6 allows you to select the output voltage that appears on the Primary Output (J2 Pin 4). The selections are +18V, +19V, or +20V as shown below. Note: the actual voltage is set approximately .5 Volts higher to compensate for any wiring losses you may have in your installation."

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          • #6
            Does this thing work as a startup/shutdown controller or do I need something separate for this?
            It says it handles standby/resume but doesn't say anything about hooking into my power button.
            My BMW E46 carpc
            My iGuidance 4 skin
            FS transflective 2008 lilliput

            Comment


            • #7
              You'll have to hack it into your power button.
              Originally posted by ghettocruzer
              I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
              Want to:
              -Find out about the new iBug iPad install?
              -Find out about carPC's in just 5 minutes? View the Car PC 101 video

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              • #8
                its a S/S controller and you can hook up to the power switch

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