Power supply

Discussion in 'Embedded Systems and Microcontrollers' started by Rburk65, May 8, 2013.

  1. Rburk65

    Thread Starter New Member

    May 8, 2013
    4
    1
    Hello everyone. Newbie here. Recently built a new shop to spend some retirement time. It has a full attic with a walk up stairway and a 3'x10 trap door to keep in the heat below. Have purchased a 2000# winch to lift and open the trap door. Its supposed to be used on an ATV so it requires 12vdc battery supply with a minimum of 12 Ah. I'd rather not fool with a battery so the question for you gurus is what are my options here? Where do I find a 120VAC to 12VDC power supply to suit my needs and what might it cost me. Thanks ever so much.
     
  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    We need the winch spec (max current)

    Why not use a battery? Buy a battery, a cheap charger and a fuse from battery to winch.
     
  3. Rburk65

    Thread Starter New Member

    May 8, 2013
    4
    1
    Well......the manual says anywhere from 10 Amp. To 106 Amp. This is only a 5% duty cycle. I bought it at Harbor Freight. Why not use a battery? Well i just thought it might be less of a hassle with the power supply, is all. Thanks.
     
  4. LDC3

    Active Member

    Apr 27, 2013
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  5. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    Most of the time the motor needs no current, but when you use it it may need a LOT of current for a very short time.

    What makes the battery attractive is it has the ability to provide a large current for a short time, then be recharged over a long period by a low current, inexpensive supply.

    What makes a straight power supply unattractive is it must be rated for the peak current it only needs to deliver for a moment, and you have to pay for that capability 24/7.
     
    Last edited: May 9, 2013
    praondevou likes this.
  6. Rburk65

    Thread Starter New Member

    May 8, 2013
    4
    1
    LDC3 and ErnieM......thank you both for the info. So either way, the power supply or the battery/charger, I'll have a $100 in it. But, I do understand the instantaneous power requirement, so......probably go with the battery. Thanks guys......I assume you're guys? Thanks, very helpful.
     
    ErnieM likes this.
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