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Thread: Schematics/Pin Outs/Diagrams

  1. #51
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    Aug 2008
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    9
    Quote Originally Posted by Nicorolla View Post
    carPC Turn On / Shutdown Controller

    Material needed

    2x SPDT standard automotive relays - automotive store or electronic store
    2x Diode - Radio shack or electronic store
    1x Serial port connector - Old serial device (mouse, joystick etc...) or radioshack or electronic store
    1x Fuse holder + fuse <- VERY IMPORTANT !!!!! (if power source already fused then you're ok)
    10g or 12g wire for providing power to the inverter (bigger is better)
    16g to 18g wire for your relay triggers, grounds and 5V connection
    Misc. connectors


    In the BIOS set your motherboard to turn on after powerloss so the second you feed power to the power supply it will turn on.

    Get an old serial port device, rip the connector off of it, take the cover off and solder a wire on PIN 8. If you look very closly the pins will be numbered on the connector. When PIN 8 is not getting 5v, it will initiate the windows shutdown. (credit to Laidback) Refer to the diagram for wiring.

    Go into your control panel -> Power Options - Create a generic UPS with these settings (picture bellow this one)

    note: some versions of windows xp does not have the UPS tab (ie: windows xp home) - xGROMx




    More details and hints:
    -The numbers you see on the diagram (87,88,85,30) are the pinout of a standard 12v SPDT relay
    -The >| symbol are diodes, they are crucial to making this work.
    -You can use your amp's turn on wire to make this work instead of ACC, however some amps may "thump" when the carPC turns on. The real ACC can be found in the head unit harness.
    -Some cars turn off the ACC while being started, this may trigger the hibernation. The diagram below will solve this problem

    Updated diagram - will only work on ignitions that have a key switch (most cars do). To know if your car has a key switch, leave your door open and put the key in the ignition w/o turning, if you hear a door chime, you have a key switch. It can be found right on the ignition plug itself. This may be a little more advanced for some users, testing with a multimeter is the only way to find the right wire.



    This will only trigger hibernation when the key is removed from the ignition

    --------------------------------------------------------------------------
    Updates - July 2006

    Alternative to the key switch method, to avoid hibernation being triggered when starting and the ACC turns off during cranking. -Important to follow the diode connections as shown below




    Enjoy

    For questions, please PM me
    hey i was just looking at the info tht u provided and my comps power supply and i have some questions

    1) wts up with the serial port device

    2) is pin 8 same as pin that i have on power suppy saying p8 which connects to lines coming to my dvd player.

    3) where you says to pin 8 on comp 1 where does that wire go plz expain

    thanks a lot in the advance

    really appropriate all the help

  2. #52
    Constant Bitrate
    Join Date
    May 2008
    Posts
    223
    Quote Originally Posted by jatt1188 View Post
    hey i was just looking at the info tht u provided and my comps power supply and i have some questions

    1) wts up with the serial port device

    2) is pin 8 same as pin that i have on power suppy saying p8 which connects to lines coming to my dvd player.

    3) where you says to pin 8 on comp 1 where does that wire go plz expain

    thanks a lot in the advance

    really appropriate all the help
    1)The serial port is to have this circuit emulate a UPS to get the computer to shut down.

    2) NO! He said serial port and he meant serial port.

    3) It does not say pin 8 on "comp 1" it says "COM 1" as in COMmunications port 1, as in the first serial port.

  3. #53
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    Join Date
    Mar 2011
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    2
    Quote Originally Posted by awace View Post
    you need a big capacitor too cause the diodes in youre alternator might not be all there cap goes across output and should be more than 15v . I would take one out of a existing 110v to any DC output power pack and use that type capacitor this would get less ripple on scope reading! GOOD LUCK.
    an 340t5 is a 5v one and hooks up same . I use them in Atari2600
    2200uF 16v should work if you want quality pick a 50v one! this should eliminate ripple out out put of regulator just fine...
    Any IDEA for making 12V 18Amp Regulated Supply. DC-DC i meant.

  4. #54
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    Jun 2011
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    Ohio
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    Post 12V 18A DC-DC converter

    Quote Originally Posted by ammo8600 View Post
    Any IDEA for making 12V 18Amp Regulated Supply. DC-DC i meant.
    As to the post from Chairboy, you can parallel 78xx regulators of a fixed voltage, but it requires a balancing resistor network to take out any inequalities in between the individual regulators. You could make an active network but it becomes very tricky very quickly the more regulators you add.


    Are you sure you really need 18A? that's some heavy current for a regulator. I would look around for converters to see if any companies already make something of that power level first.

    That said if you are really dead set on making your own DC-DC converter:
    Considering that you can't always guarantee that the voltage in your car will be above 12V (as in the case of a partially discharged battery/bad alternator/ car not running) the best converter type would be what is called a SEPIC converter. They are somewhat hard to build for the power level you are asking for, but not impossible.

    If you don't mind the idea that there could be some situations where you wouldn't have regulated +12V, then you need a Buck converter.

    I would recommend looking up Buck, Boost, Buck-Boost, SEPIC, and Cuk on Wikipedia. There are some articles on each type of converter, a basic schematic and both general and semi-in-depth descriptions of both the designs and how they function.

    But just from my experience, an 18A Buck converter would be easier to make from both a design and parts stand point (SEPIC converters require a "linked inductor" which can be difficult to find at high current levels). So the question is do you really need that much power and do you need/want it to be able to run under the conditions above.


    If you want to know any more or have a discussion about this more in depth, PM me.

  5. #55
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    Join Date
    Jul 2011
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    1

    alpine TME-M680EM 8 pin

    hi,i bought a alpine TME-M680EM,i want connect to pc but cable doesn't fit.Please help
    Last edited by fkaraot; 07-10-2011 at 07:18 AM.

  6. #56
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    Join Date
    Aug 2011
    Posts
    1

    Red face Hibernating Windows XP through the serial port, no additional software requried.

    This is an easy way to hibernate a PC running XP using the serial port. Please see the diagram.
    Attached Images Attached Images

  7. #57
    Constant Bitrate
    Join Date
    Jan 2006
    Location
    Dublin, Ireland
    Posts
    116
    I need to do something which I am sure has already been done by others before. I have a Thin Client PC with an SSD running XP so it boots in 10 secs.

    When I turn the car ignition to ON, I want to short the ATX On/Off PC switch to turn the PC on and then, when I turn the ignition to OFF, I again want to short the ATX On/Off PC switch to then shutdown the PC. I had hoped to use the diagram in post #21 but I have NO Power Options in the PC BIOS so I cannot resume the PC on power restore.

    So the plan is to use Standard Automotive Relays and send a One Second 12v burst to a Relay to simulate the pushing of the ATX On/Off PC switch (like shorting the Green / Black wires to the front On/Off panel). Can anyone please guide me on how this could be achieved with maybe a combination of Relays and resistors ?


    Many thanks
    Last edited by championc; 01-17-2013 at 09:45 AM.

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