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Computer brush fan as dc generator

Output

Poll closed Feb 7, 2013.
  1. dc

    1 vote(s)
    100.0%
  2. ac

    0 vote(s)
    0.0%
  1. Jan 29, 2013 #1
    Computer brush fan as dc generator
    Sir,
    I am using renewable soℝurces like wind for my project..
    I need to supply 1.5 to 2 v dc to my amplifier circuit and then to load...
    I am using computer brush fan as source ...it just gave output upto 2.5v in ideal state when i connected to multimeter in dc mode...but when i give the output of the comp fan to my circuit..it is not working/..

    note: My circuit is working well when i gave 1.5v dc supply thru DCRPS..

    Please let me know whether the out of computer brush fan is dc or ac....
    if dc .,what is the mistake in it..
    if AC, then,what will be the design of bridge rectifier..
     
  2. jcsd
  3. Jan 29, 2013 #2

    russ_watters

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    Staff: Mentor

    Re: generator

    It is DC. The problem is almost certainly lack of amperage. Have you checked how much can be supplied vs what you need?
     
  4. Jan 29, 2013 #3
    Re: generator

    Thank you sir,
    will amperage vary from 1.5v dc battery to 2v generator..
     
    Last edited by a moderator: Jan 29, 2013
  5. Jan 29, 2013 #4

    russ_watters

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    Staff: Mentor

    Re: generator

    Yes.
     
  6. Jan 29, 2013 #5

    davenn

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    Gold Member

    Re: generator

    Also open circuit voltage you read with your meter will naturally be higher than the voltage measured when there is a load on that generator

    Dave
     
  7. Jan 29, 2013 #6

    berkeman

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    Staff: Mentor

    Re: generator

    Welcome to the PF.

    Poll threads are generally not allowed in the technical PF forums. It looks like you have received good answers to your question. If you have further questions, please start a new thread, and please do not make it a poll thread. Thank you.
     
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