How can I set a frequency in a Wien bridge oscillator

mercredi 30 avril 2014

Hi all,

Im new here :-)

So Im designing a simple Wien bridge oscillator, and need it to be set to a specific frequency.



This is my circuit:





Where C1 = C and C2 = C

and R3 = R and R4 = R



Im using ω=1/(C2R2)

where C = my capacitor values and R = my Resistor values.



My problem is, however, how do I get it to equal ω?

Should I just set either C or R to a random value, and then work out the other?



Many thanks,

Tommy





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