Wein-bridge oscillator design

Discussion in 'The Projects Forum' started by kenny-one, Sep 23, 2012.

  1. kenny-one

    Thread Starter Active Member

    Apr 21, 2010
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    Hi guys, can you please help here.

    I need to design a wein-bridge oscillator to generate 40 KHz frequency. I need it for my ultrasonic range finder project. thanks in advance.
     
  2. Dyslexicbloke

    Active Member

    Sep 4, 2010
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    25
    I was going to ask why a wein-bridge but I guess toy want a simple way to produce a sine wave, is that right?
    There seem to be plenty of tutorials out there with formulas to calculate freequency.
    this is the one i found first:-
    http://www.electronics-tutorials.ws/oscillator/wien_bridge.html

    I will be keeping an eye on this thread so I can learn.
     
  3. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    Last edited: Sep 23, 2012
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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  5. ramancini8

    Member

    Jul 18, 2012
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    Make sure the op amp bandwidth is greater than 80Khz because bandwidth falls off fast in voltage op amps.
     
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