PWM with FREQ. adjustment

Discussion in 'General Electronics Chat' started by spidershead, Apr 15, 2009.

  1. spidershead

    Thread Starter New Member

    Apr 14, 2009
    3
    0
    I am in search of a design for a PWM with a adjustable freq. Rated for 0 24v and freq. adjustment 0 to 60khz. By the way, new here on this form,it's real good. Seems like lots of smart people here, SGTWOOKIE for sure
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    If you take a triangle wave oscillator that you can change in frequency and
    a comparator that compares teh triangle with a reference voltage,
    you will have a PWM signal at the output of the comparator.

    The wanted range from 0 - 60 kHz is very large, perhaps split it up in decades like in a function generator.

    Greetings,
    Bertus
     
  3. EnergyChina

    New Member

    Apr 16, 2009
    2
    0

    nice answer.

    and can get more from the internet with google.
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
Loading...