Amplifier (Op-Amp) Oscillator Duty Cycle

Discussion in 'Homework Help' started by csw123, Dec 1, 2014.

  1. csw123

    Thread Starter New Member

    Feb 27, 2014
    16
    0
    hi everyone,
    at my question i need to get a frequency of 10Khz and a 30% duty cycle at vout.
    to make 30% duty cycle i need to set discharging time 3 times more than charging time!?
    my question is how i determine which resistors affect the capacitor when charging and which when discharging?

    thank you
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,788
    4,807
    Analyze the circuit and see what the time constant is for the rising and falling parts of the waveform.
     
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,398
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    csw123 likes this.
  4. csw123

    Thread Starter New Member

    Feb 27, 2014
    16
    0
    thank you!
     
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