An active circuit with feedback must fulfill Barkhausen`s oscillation condition for producing self-sustained sinusoidal oscillations.
However, there are some active circuits that meet this oscillation criterion without being able to oscillate.
Examples:
1.) Symmetric modifications of the classical WIEN oscillator if it is seen as a tuned bridge (element exchange within the positive as well as the negative feedback path)
2.) Equal component double-T oscillator with positive gain of 4.
My question: Are there other active circuits with feedback which do not oscillate even though the meet the mentioned oscillation condition?
However, there are some active circuits that meet this oscillation criterion without being able to oscillate.
Examples:
1.) Symmetric modifications of the classical WIEN oscillator if it is seen as a tuned bridge (element exchange within the positive as well as the negative feedback path)
2.) Equal component double-T oscillator with positive gain of 4.
My question: Are there other active circuits with feedback which do not oscillate even though the meet the mentioned oscillation condition?