Announcement

Collapse
No announcement yet.

power up opus without car started

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • power up opus without car started

    i'm planning to install my carputer with an opus 150w and get connected/disconnected with the ignition key. But i have question, is it possible to power up the carputer without having the car started?

    regards

  • #2
    yes
    Signature: [==||========] 20% complete

    Comment


    • #3
      Turn the ignition key to the on position.
      AtmosUSA.biz, E-Cig Mods
      "A great smoking alternative"

      Comment


      • #4
        Are you asking if it's possible to start the PC without the engine running, or without the keys in the ignition?
        Carputer progress meter: [-----|]
        Carputer gadget meter: [--|---]

        Comment


        • #5
          i was asking if it's possible to start the PC without the keys in the ignition, with a switch or something like that

          thanks for your answer

          Comment


          • #6
            sure its possible, simply bypass the ignition by an Switched wire. But the big problem is, you could forget to turn the switch of, so your pc emptys the bat.

            a try to show the wiring plan:





            .../-----perm 12V---------\
            bat -----ignition-----------PSU
            ...\------Switch-------/

            / & ---=Wire

            Comment


            • #7
              the opus will shut down before the battery is drained...
              rebuilding carpc... kinda..

              Comment


              • #8
                mmm thank you for your help, i think i'll keep my keys in the ignition

                Comment


                • #9
                  Originally posted by fantomas
                  the opus will shut down before the battery is drained...

                  It should, however it may not shut down soon enough in some cases. My Opus 150W has drained my battery a few times. It did shut down during low voltage, unfortunately by this time there wasn't enough juice left to crank.

                  Plus, the 5VSB rail is always on leeching power. Depending on the power used by your USB devices, you may want to disable the rail when the computer shuts down (see the relay mod post for the 150W or set the jumper on the 90W).

                  I killed my first battery because of a combination of the above.
                  -TJ
                  Smart Playlists Plugin for RoadRunner
                  CarPC - 05 Acura TL Navi (pics soon)
                  Retired CarPC - 03 Infiniti Qx4

                  Comment


                  • #10
                    hmn...you could set a momentary switch that sends a signal to the opus to turn on, and set the jumper on the opus to 30 or 60 minutes so it automatically shuts down after this time unless you hit the button again or actually start the car
                    rebuilding carpc... kinda..

                    Comment


                    • #11
                      You need a single poll, double throw switch (SPDT). Mechanically it's like an on-off switch, but it's real use is as an on-on switch. In one possition you provide one path for voltage, and in the other possition you provide another path. You can also call it a changeover switch.

                      I used a single poll, double throw switch (SPDT) for my ACC. I attached the ACC-IN wire for the power supply to the "COM" of the switch. Then I connected ignition power/ACC power from the car to the A terminal of the switch, and a live 12 volts to terminal B. When the switch is in the A possition, it closes the connection for ignition power from the car. When the switch is in possition B, it closes the live 12 volts to the ACC-in of the power supply.



                      - Connect ACC-IN wire from OPUS to "COM" of switch.
                      - Connect ignition power (ACC power) to terminal A on the switch
                      - Connect live 12 volts to terminal B on the switch

                      Possition|-ACC/Ignition-|-Live 12 volts-|
                      ---A----|------ON-----|-----Off------|
                      ---B----|------OFF----|-----ON------|

                      When you put the switch in possition B you can turn off the car and run into the store for five minutes, and the PC will stay powered on. This is because possition B sends 12 volts to the ACC-In of the power supply and tricks it into thinking the key is in the ON possition. You can also use this trick to turn the PC on as well (be aware of the 4 second power on delay). The trick is to not forget to change the switch back to possition A. If you forget, the PC will stay powered on while you sleep at night and drain your battery.
                      Carputer progress meter: [-----|]
                      Carputer gadget meter: [--|---]

                      Comment


                      • #12
                        I just found a simple schematic by someone else. It's for the ITPS, but the concept is identical. http://www.mp3car.com/vbulletin/show...24&postcount=7
                        Carputer progress meter: [-----|]
                        Carputer gadget meter: [--|---]

                        Comment

                        Working...
                        X