Low frequency oscillator solenoid.

Discussion in 'General Electronics Chat' started by Audiofilo, Aug 5, 2008.

  1. Audiofilo

    Thread Starter Member

    Jul 15, 2008
    13
    0
    Hi Everyone

    I need control a VCO (IC 4046) so it need a LFO (low frequency oscillator), it must be sinusoidal, range about 0.1 to 1.0 Hz.
    Could someone say where find it ? or, How design it ? ( better if use single +9V).

    Regards

    Audiofilo
     
  2. bertus

    Administrator

    Apr 5, 2008
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    Last edited: Aug 5, 2008
  3. Wendy

    Moderator

    Mar 24, 2008
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    The sinusdoidal part is the hard one. If I read the data sheet correctly the on board VCO will do the freq just fine. I've put some work into this, you can convert the square wave to a triangle wave, and then to a sine wave with an op amp intigrator.

    Why phase locked and why do you need a sine wave?
     
  4. Audiofilo

    Thread Starter Member

    Jul 15, 2008
    13
    0
    Hi, Bertus, Bill, thank.

    It is for a chorus circuit, it use a BBD (MN2008) which use a external clock, I need sweep the clock slowly. For chorus the sweep must be sinusoidal (i.e, for flanger effects it must be triangular).

    Regards
     
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