Power supply recommendations? (constant voltage)

Discussion in 'General Electronics Chat' started by Mustwin351, Apr 29, 2013.

  1. Mustwin351

    Thread Starter New Member

    Apr 11, 2013
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    I was in the market for a power supply to power 12v led strips. Taking a current reading the strips by themselves draw 65 watts.

    What should I look for in a power supply and where is the best place to buy it?

    Can I buy one that is good quality that doesn't put out much RF noise that will interfere with my wifi or a nearby stereo fairly cheaply?

    Any thoughts or links would be great!
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Your cheapest is an old computer Atx psu if you have one they give out 12V at 300W easy, failing that Ebay.
     
  3. ScottWang

    Moderator

    Aug 23, 2012
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    65 watts/12V, it will be need 5.42A, old AT power or ATX can do the job.

    Or you can buy from here, you better choosing 8A or 10A.
     
  4. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  5. ScottWang

    Moderator

    Aug 23, 2012
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    If the money can afford it, the power supplies for industrial are better then the adaptors.
     
  6. Mustwin351

    Thread Starter New Member

    Apr 11, 2013
    12
    0
    Scott that one you posted would be great but it's a little to close to my load. I would like at least 20% headroom.

    Dodgydave -
    I like the idea of a computer power supply. I wonder if I could run it without the fan?

    Mcgyvr -

    I was actually surprised it wasn't drawing more power. I'm running 32' of double density leds strips. According to the specs at full brightness it should be more like 96 watts.
     
  7. ScottWang

    Moderator

    Aug 23, 2012
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    Sorry,that is the first times i found, I put the wrong linked page, the new link will be better as AC-DC 12V 10A 120W Switching Power Adapter, you can searching by "adaptor 12V/10A" for some more adaptors.

    12V/8A Adaptor.
     
  8. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,986
    745
    Yes you can run it without the fan, but it will get very hot and its not recommended.

    http://www.electronics-tutorials.ws/blog/convert-atx-psu-to-bench-supply.html
     
  9. Mustwin351

    Thread Starter New Member

    Apr 11, 2013
    12
    0
    Scott that one you posted would be great but it's a little to close to my load. I would like at least 20% headroom.

    Dodgydave -
    I like the idea of a computer power supply. I wonder if I could run it without the fan?

    Mcgyvr -

    I was actually surprised it wasn't drawing more power. I'm running 32' of double density leds strips. According to the specs at full brightness it should be more like 96 watts.
     
  10. ScottWang

    Moderator

    Aug 23, 2012
    4,854
    767
    It's wierd, why you posted the same contents twice, did you see my new post.
     
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