Need help adjusting 556 circuit (pwm)

Discussion in 'General Electronics Chat' started by Jasonaaronfox, Jul 4, 2012.

  1. Jasonaaronfox

    Thread Starter New Member

    Jul 4, 2012
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    [​IMG]

    C1 = 680pF; C2 = 0.01 μF; C3 = 0.1 μF; C4 = 10 μF, polarized.* R1 = 1k, R2 10k

    I would like to use this specific circuit, but adjust it to provide a 16khz pwm signal as my fan specifications call for it.

    Please email the solution to me at jaf@mm.st. Thanks a bunch!!
     
  2. Jasonaaronfox

    Thread Starter New Member

    Jul 4, 2012
    2
    0
    Never mind all, just realized why this 556 setup can't be frequency adjusted.
     
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