Briefly, the two criteria to be met are that the loop gain to be unity and zero phase shift. Is there any of the two that is the most crucial?
This is true. There are circuits that satisfy the Barkhausen criterion, yet provide no oscillation whatsoever.Actually, my understanding is that Barkhausen is necessary but not sufficient.... it doesn't tell the whole story.
...and I am still investigating some additional requirements to make the Barkhausen criterion a sufficient one.Concerning:
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Hi Erik,
a warm welcome to the club!
LvW
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Hi Lutz,
Thank you so much for your warm welcome.
I am working on Wien Bridge oscillators
as modified multivibrators at the moment.
All the best for the new year 2014 !
ERIK
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