15 - 20 kHz Traingle Wave Generator

Discussion in 'The Projects Forum' started by Farrukh12, Mar 27, 2013.

  1. Farrukh12

    Thread Starter New Member

    Mar 27, 2013
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    How can I generate a 15 - 20 kHz triangle wave using op-amps.
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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  3. Farrukh12

    Thread Starter New Member

    Mar 27, 2013
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    which op-amp should I use would the 741 be able to witstand 20 kHz wave.
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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    Ouch! If you can, avoid any use of the 741. I really hope you have other options
     
  5. patricktoday

    Member

    Feb 12, 2013
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    A major factor in an op amp for generating triangle waves is the slew rate. That's the speed at which the output can rise in voltage and is measured in V/uS. The 741 will probably not keep up at 20kHz. It does about 0.5V/uS. The LM318 is < $1 and does 50V/uS. There are many others.
     
  6. Dodgydave

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    Jun 22, 2012
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  7. Farrukh12

    Thread Starter New Member

    Mar 27, 2013
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    I made the circuit in Proteus but it gives no output I also tried different values of R2 and C1 but still no output.
     
  8. crutschow

    Expert

    Mar 14, 2008
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    What power are you applying to the circuit?
     
  9. Farrukh12

    Thread Starter New Member

    Mar 27, 2013
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    I am applying 12V
     
  10. rogs

    Active Member

    Aug 28, 2009
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    Try making R3 100K and R1 470K
     
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