Hi everyone,
From the attached picture, why when βH(jω) = -1, the circuit will oscillate at frequency ω? What's the purpose of letting the circuit to oscillate?
The total phase shift around the loop at ω is 360°, what is the reason? I know the negative feedback itself introduces 180° of phase shift, where's the other 180° comes from?
Last but not least, why do we need 360° phase shift for oscillation?
Appreciate if anyone could answer my questions, thank you......
From the attached picture, why when βH(jω) = -1, the circuit will oscillate at frequency ω? What's the purpose of letting the circuit to oscillate?
The total phase shift around the loop at ω is 360°, what is the reason? I know the negative feedback itself introduces 180° of phase shift, where's the other 180° comes from?
Last but not least, why do we need 360° phase shift for oscillation?
Appreciate if anyone could answer my questions, thank you......
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