how to convert a variable dc to constant supply

Discussion in 'The Projects Forum' started by Afeesh, Sep 17, 2009.

  1. Afeesh

    Thread Starter New Member

    Jun 12, 2009
    9
    0
    hi,
    i am having a variable dc voltage having a max peak value of 3.5V (varying from 0 to 3.5 voltage ), i want to convert this to a constant dc supply.Plz suggest any simple method to do the same.

    to be specific i am having an output that can blink the led but the led blinking is highly fluctuating (changes its intensity in every instant).i want to convert this fluctuation to a constant output voltage.
     
    Last edited: Sep 18, 2009
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    What is your required constant DC output voltage?

    Clearly you won't be able to convert an input of 0V to anything other than 0V - unless you have a means of storing energy for the time the input is at zero volts. So if the input might be at 0V for a 'long time' you may have to set your minimum variable input to something greater than 0V.

    Perhaps you could define your requirements in more detail.
     
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