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Thread: What power source?

  1. #1

    What power source?

    I was wondering what would be the best way to power a PC based robot.

    I was thinking od hacking a UPS system for the guts, or if some one could suggest something better.

    thanks
    john

  2. #2
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    Re: What power source?

    Hi Abacus:
    Buy a battery pack from Trossen or Lynxmotion. Size it to match your motor speed controller (like a Sabertooth, or for the Servos on your servo controller). It is best to submit to the people here your final motor count (amps) or qty of servos and other components so you see if you have enough juice. (Also so your controller is matched properly). Since you might not know what batteries are in a UPS, you can goof it if say you have more cells than the controller can handle. Also: Some motor controllers are battery TYPE specific, and they have dip switch positions to reflect your choice. If you don't know what your batteries are then this could lead to a problem. I would also think that the UPS batteries, meant to deliver 115 Volts eventually through conversion may be too bulky for your robot. Trossen has flat battery packs that are really nice to use and not expensive at all. Also, consider getting a good battery charger like the Duratrax Intellipeak Charger, because these can be programmed for the exact battery you are charging:
    http://www.duratrax.com/caraccys/dtxp4170.html

    All the best, -Migs
    "The medicine for my suffering I had within me from the very beginning" Bruce Lee - Jeet Kune Do
    "One single grateful thought raised to heaven is the most perfect prayer. " G. E. Lessing
    "Time has a wonderful way of showing us what really matters." - Margaret Peters
    "We all have the extraordinary coded within us, waiting to be released."-Jean Houston

  3. #3

    Re: What power source?

    Right now i just want to power my motherboard. I was going to use a laptop for my brain but I have this spare motherboard that will be dedicated to just the robot. So if I could get about 2-3 hours of on time that would be great. My drives will all have there own power source.

    Is there a premade unit that will interface a battery to a motherboard?

  4. #4
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    Re: What power source?

    Hey John,

    I believe what you are looking for is a DC to DC converter. These are made for smoothing out battery power for use with computer boards. Logic Supply is the place to go
    http://www.logicsupply.com/categories/power_supplies

  5. #5

    Re: What power source?

    Does anybody know how many watts a full size motherboard draw? What about a Hard Drive?

    Thanks
    John

  6. #6
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    Re: What power source?

    John:

    These guys would probably be able to tell you:
    http://www.logicsupply.com/

    Migs
    "The medicine for my suffering I had within me from the very beginning" Bruce Lee - Jeet Kune Do
    "One single grateful thought raised to heaven is the most perfect prayer. " G. E. Lessing
    "Time has a wonderful way of showing us what really matters." - Margaret Peters
    "We all have the extraordinary coded within us, waiting to be released."-Jean Houston

  7. #7

    Re: What power source?

    I talked to Logic supply tech support.
    1. a full size motherboard running a core2 processor is 110w at 100%
    2. a full size motherboard running a p4 is about 170w at 100%

    Here is what if found. ALthough it not a "Smart" power supply is is 200w.

    http://www.mini-box.com/s.nl/sc.8/category.13/.f

  8. #8

    Re: What power source?

    And its only $48 dollars.

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