Wien Bridge Oscillator CR=1 Assumption

Thread Starter

Alkim Gokcen

Joined Mar 29, 2017
22
Hi guys;
We have a project to design a WB Osicllator and im trying to determine the transfer function in s domain as in that form;
H(s) = sCR/(s^2C^2R^2 +3sCR +1 )

And some people got the CR=1 assumption and i cant figure it out;
Can u guys explain me that the reason
Thanks to u all.
 

WBahn

Joined Mar 31, 2012
32,823
RC = 1 is meaningless. One what? RC has units of time, so it could be 1 second, 1 millisecond, 1 hour, 1 fortnight, 1 bucket of sand dribbling through a hole the size of your thumb in the bottom of the bucket. Even if it's understood that it is one second, what is special about one second? Nothing.
 
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