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Thread: Removable CarPC Power Options

  1. #1
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    Question Removable CarPC Power Options

    My CarPC needs to be removable and therefor will have a normal power supply built in.

    What are my options to "smartly" (real word?) supply power to my PC while in the car. I have read a while back about using a modded UPS that works in the same way some of the advanded ATX car PSUs work. (Can auto shutdown the computer when the car is turned off, Wont be rebooted by cranking, etc...)

    I know very little about electronics (I said little, not nothing), but I do have many people I can confer with for moderate levels of electronic assembly.

    Open for any and all suggestions

    BTW, Havent built the carputer yet but the basic specs are follows:
    EPIA M10000
    1U 150w PSU
    80 Gig Deskstar (yes yes, I know about deskstars but I already have one)
    5.25" Slot Dvd Rom in an External USB Encloser

  2. #2
    Raw Wave Rob Withey's Avatar
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    Quote Originally Posted by fuzzylogik
    My CarPC needs to be removable and therefor will have a normal power supply built in.
    That doesn't necessarily follow. There is another way...!

    I run my PC using my dc2dc power supply in the house, using an external power supply to produce the 14v or so to run it. The external power supply is built from a car battery charger transformer, and a few components. It is unregulated (don't see the point in regulating just to have it regulated again by my dc2dc power supply).


    Rob
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  3. #3
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    Well, what you could do is hook up an inverter to the car's battery - supplying you with AC power, then hook up the UPS to that, and then your PC setup to the UPS.
    I don't see why the UPS would need to be modded...

    I've been toying with the UPS idea for a while, as DC-DC power supplies and shutdown controllers are hard to find down in Australia.

    The down side to a setup like this:
    It takes a lot of room!
    Inverters can cause noise (electrical noise) which you can sometimes hear through the speakers or see via distortion on the LCD screen.
    Might be more of a drain on the car's electrical system

  4. #4
    The Vauxhall Vectra Project ccsnet's Avatar
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    Quote Originally Posted by fuzzylogik
    My CarPC needs to be removable and therefor will have a normal power supply built in.

    What are my options to "smartly" (real word?) supply power to my PC while in the car. I have read a while back about using a modded UPS that works in the same way some of the advanded ATX car PSUs work. (Can auto shutdown the computer when the car is turned off, Wont be rebooted by cranking, etc...)

    I know very little about electronics (I said little, not nothing), but I do have many people I can confer with for moderate levels of electronic assembly.

    Open for any and all suggestions

    BTW, Havent built the carputer yet but the basic specs are follows:
    EPIA M10000
    1U 150w PSU
    80 Gig Deskstar (yes yes, I know about deskstars but I already have one)
    5.25" Slot Dvd Rom in an External USB Encloser

    Have a quick look in my gallery on my web site, a 3 ping Euro plug and a lenth of 13amp cable and I had one removable system.

    Terran

  5. #5
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    Rob Withey said:--------------------------------------------------
    That doesn't necessarily follow. There is another way...!

    I run my PC using my dc2dc power supply in the house, using an external power supply to produce the 14v or so to run it. The external power supply is built from a car battery charger transformer, and a few components. It is unregulated (don't see the point in regulating just to have it regulated again by my dc2dc power supply).

    Rob
    --------------------------------------------------------------------

    Hmmm, good idea, but it still requires you to have that unit on hand to power it externally. Seeing as how most of our lans are thrown together out of nowhere, I would prefer to have it just use a simple power cord. Most of the time I just bring my computer and use a friends moniter, keyboard, mouse, & cables.

    perkz said:--------------------------------------------------------
    Well, what you could do is hook up an inverter to the car's battery - supplying you with AC power, then hook up the UPS to that, and then your PC setup to the UPS.
    I don't see why the UPS would need to be modded...

    I've been toying with the UPS idea for a while, as DC-DC power supplies and shutdown controllers are hard to find down in Australia.

    The down side to a setup like this:
    It takes a lot of room!
    Inverters can cause noise (electrical noise) which you can sometimes hear through the speakers or see via distortion on the LCD screen.
    Might be more of a drain on the car's electrical system
    ------------------------------------------------------------------

    Room doesnt matter that much as ill be putting it into a 98' Astro Van I'm trying to buy. All large components (inverter, UPS, stereo amp, etc.) are going to be put into a custom box that hopefully will be sound proof while allowing airflow to keep things cool. The electrical noise might be a pain. Is there any way to minimize it (Special Circuit, Adapter, High quality inverters?)

    ccsnet said:-------------------------------------------------------
    Have a quick look in my gallery on my web site, a 3 ping Euro plug and a lenth of 13amp cable and I had one removable system.

    Terran
    ------------------------------------------------------------------

    I looked through the hardware section of your site and didnt see what you were talking about. I guess I should look through the whole site but my schedule is too hecktic for that right now. Could you point me in the right direction?

    On a side note: Im new to these forums and as you can see I made my own qoute brackets for this post. Can I use the forum to post multiple qoutes without having to make their own brackets or would I have to do one quote per post?

    edit: If I remember correctly a normal PSU only draws the power that it needs (ex: a 200w PSU doesnt actually use 200w unless your components draw that much power). Correct me if Im wrong on that. Also, does an inverter work the same way?

  6. #6
    Maximum Bitrate Seraph's Avatar
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    IF you do not have the parts already, go get yourself a Cuppuchino TX3. That' is removable. (www.buyitpc.com)
    - Lwin M. Maung
    If it's stuck, force it. If it breaks it needed replacing anyway

  7. #7
    The Vauxhall Vectra Project ccsnet's Avatar
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    Here.. http://www.letscommunicate.co.uk/carputer/gallery.htm under 'The Install'.

    Terran

  8. #8
    FLAC DodgeCummins's Avatar
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    Quote Originally Posted by ccsnet

    You obviously spent too much time documenting your install, and not enough time drinking beer.

  9. #9
    The Vauxhall Vectra Project ccsnet's Avatar
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    Quote Originally Posted by DodgeCummins
    You obviously spent too much time documenting your install, and not enough time drinking beer.
    I'll take that as a compliment lol.....

    Terran

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