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Power Supply Board

Discussion in 'System Builder's Advice' started by EpicShweetness, May 19, 2013.

  1. EpicShweetness

    EpicShweetness

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    I'm Looking for a small circuit board to provided power to a 12v DC to a Pump (18 watt .69amp), and 4 3pin fans. This is to provided power to a external water cooling rack.
    I'm in the process of brainstorming, and would appreciate, ideas, alternatives, etc. As it stands I've found things close, or things I'm unsure would work. I'll keep looking.
    Thanks all.
     
  2. OneMoar

    OneMoar

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    12V dc is everyware man
    old computer psus
    old power adapters
    old car battery's
    if it says it outputs 12v DC then it should work
     
  3. theoneandonlymrk

    theoneandonlymrk

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    Tbalancer mini ng Google it..
    I went bigng and love it.
     
  4. AsRock

    AsRock TPU addict

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    Yeah i was thinking power adapter and see if ya can get 1 or more from the second hand shop.
     
  5. OneMoar

    OneMoar

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    witch does no good because it still requires a 12V input
     
  6. EpicShweetness

    EpicShweetness

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    So far I found this as the best option
    http://www.coolerguys.com/840556088776.html
    http://www.coolerguys.com/840556097600.html
    Basically the reason I don't know if this will work is if i can use a 3 pin to molex, and use the molex end to attach to the pump. Any theories, remember I need 18 watts and .69 amp.

    Your right I see no way to attach a external power source to it.
     
  7. 1freedude

    1freedude

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  8. EpicShweetness

    EpicShweetness

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    Before I go to bed I have poured over my search and the mCubed Mini NG is supplied power via 4 pin Molex, providing this power via a external 4 pin power source makes the use of said unit possible, but without having to use the a PC's ATX power supply. I see no way however to make this on/off capable, unless you just unplug it.
    I had an idea to just short a ATX's 24pin on the power supply, but it would be unsightly and huge.
    I'm quickly drawing to the conclusion that I might be asking for something that doesn't really exist. Yes, it does, but it's inviting Jerry and Jimmy to the party creating a very odd solution. :confused:
    Anyway, awesome feedback, and my brain hurts, till tomorrow. :rockout:
     
  9. 1freedude

    1freedude

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  10. newtekie1

    newtekie1 Semi-Retired Folder

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  11. bencrutz

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    i don't know where do you get that .69amps from.
    if it's 18 watt pumps with 12v dc input, then it would require 1.5 amps at the minimum ;)
     
  12. EpicShweetness

    EpicShweetness

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    Technical specifications:
    Nominal voltage 12 V DC
    Operating voltage range 6 to 13.2 VDC
    Nominal power (@ 12 V) 18 W
    Nominal current (@ 12 V) .69 amps
    Nominal head (@ 12 V) 13.05 ft (4 m)
    Nominal discharge (@ 12 V) ~ 92.4 GPH (350 LPH)
    Connection size 3/8" barbs (10mm)
    Maximum pressure 22 PSI (1.5 BAR)
    Temperature range Up to 140°F (60°C)
    Electrical connector Molex 4 pin
    Weight 7.3 oz (207 gr.)

    Straight from EK.

    Ok so I need these things for this to work.
    http://www.coolerguys.com/840556092148.html
    http://www.coolerguys.com/840556088776.html
    http://www.coolerguys.com/840556097600.html
    http://www.coolerguys.com/840556028932.html
    For a grand total of $36, not bad. :rockout:

    Thanks for the feedback, and help with this.

    In the future if I can collaborate this with some buds you'll see a system in this.
    LIAN LI PC-Q03B Black Aluminum Mini-ITX Tower Comp...
    And theses parts powering a external water rack roughly a little bigger then the case itself :laugh:
     
  13. Norton

    Norton WCG-TPU Team Captain

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    The power supply from this unit (below) and any fan controller should also work:

    StarTech USB2SATAIDE Adapter - Newegg.com

    Has an inline switch and has a 12V/2A and a 5V/2A output

    ** EDIT- I own one of them and read the output from the power brick if curious about it **
     
    Crunching for Team TPU More than 25k PPD
  14. de.das.dude

    de.das.dude Pro Indian Modder

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    most reliable would be laptop power supply brick :)
     
  15. McSteel

    McSteel

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    Or an LCD monitor one.

    If you want long-term reliability and good quality, go for a Seasonic or a Delta power brick. LiteOn also make some good ones...
     
  16. 1freedude

    1freedude

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    Laptop bricks are not 12 volt. Netbook bricks usually are 12 v.
     
  17. bencrutz

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    well, P = VI hence I = P/V so current needed = 18 watts / 12 volts = 1.5 amps

    anyway, lcd monitor power bricks is usually 12 v and can provide around 4 amps current, it should provide enough juice.

    laptops power adapters/chargers are usually around 19 volts, not 12v
     

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