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crutschow crutschow is offline

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  • About crutschow
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    L.A. USA
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    Retired Engineer
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    Curmudgeon Elektroniker

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  • Last Activity: Today 06:19 AM
  • Join Date: 03-14-2008
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Posted 03-25-2014 at 05:33 AM by crutschow Comments 1
Posted in Uncategorized
Here's a Bubba oscillator that uses diodes to give a soft limit to control the amplitude of the oscillator and provide low distortion (better than a half percent at Vout in simulation). I also modified the circuit so that the left capacitor is in the feedback of the inverting stage and thus isn't loaded by the inverting stage as is typical.

The oscillation frequency is 1/(2RC).

The DC loop gain must be slightly greater than 4 for oscillation to occur as is normal...
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Nice entry.
...
Posted 03-25-2014 at 10:04 PM by Sparky49 Sparky49 is offline

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