Power Supply Reqirements

Discussion in 'General Discussion' started by nilpferd, Jun 23, 2014.

  1. nilpferd

    nilpferd New Member

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    Hi,
    i'am actually use 5Volts/2A for runnig an Ubuntu System on a quadcore udoo.
    At the moment (i still beginning) nothing is wrong. The system is runnig......
    But i ask myself (and now the community too) : what's the official requirements for minimum voltage and minimum consumption? I have it not found at the web.
    Any suggestions?
    Thank you for support me.
    Greetings
    Martin
     
  2. delba

    delba Administrator Staff Member

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    6V/2A. If you use 5V some Peripherals (eg SATA) could not work.
     
  3. nilpferd

    nilpferd New Member

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    thank you for answering.
    Additional question: why can't find this information in your documentation?
    I read some thinks about 12 Volts in the www, and the next question is depend: whats the maximum Voltage, that i can use.
    Best greetings
    Martin
     
  4. delba

    delba Administrator Staff Member

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  5. nilpferd

    nilpferd New Member

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    Thank you.
    Martin

    p.s.
    i repeat: 12 Volts at 2 Amperes are the best choice.
    So i will do.
     
  6. delba

    delba Administrator Staff Member

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  7. mcoahran

    mcoahran New Member

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    I have a similar question. I am powering the Udoo board through the external power JST, so that I can also power a peripheral from the same power adapter (but without running its current through the Udoo board). This peripheral needs 12V/1A. I am guessing that Udoo's recommendation for a 12V/2A power adapter does not take the needs of this peripheral into account, but I don't know how to estimate what I really need. Would you recommend 12V/3A, or should 12V/2A still be fine for my situation?

    Thanks!
     
  8. fetcher

    fetcher Member

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    I've never seen the Udoo itself pull more than 10W (0.83A @ 12V) at full load, so 2A total should be OK... but you don't necessarily want to be loading down a power supply to the max either. Some are rated a little optimistically, or for peak rather than continuous load. 3A would give more of a safety margin.
     
  9. mkopack

    mkopack Member

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    Yeah, general rule - If you're trying to use 1 supply to handle 2 items, both at teh same voltage, take the expected Amps input to each and add them together... 1+2 =3A minimum... Also usually helps to go bigger just in case (as others above have noted).
     
  10. mcoahran

    mcoahran New Member

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    Thanks!
     
  11. Dré-Stylè

    Dré-Stylè New Member

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    well i did a stupid thing , i plugged in my laptop adapter 19v 200w in my udoo quad .
    i found out like 2 hours later that it was the wrong adapter
    i do not know if the board is damaged , is there a way to check it ?
    sometimes my screen turns off and on via hdmi , dont know if the driver is damaged .
     
  12. delba

    delba Administrator Staff Member

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    Well if the board turns on is already a good sign. Paste here the serial output when the screen turns off and on. Have you tried with a different cable and power adapter? What happens if you change the microSD? The problem is still there?
     

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