A two stage amplifier with negative feedback has an overshoot when damping factor K is:

A two stage amplifier with negative feedback has an overshoot when damping factor K is: Correct Answer Less than unity

  • Negative-feedback amplifier subtracts a fraction of its output from its input so that negative feedback opposes the original signal.
  • The applied negative feedback improves its performance namely gain stability, linearity, frequency response, step response and reduces sensitivity to parameter variations due to manufacturing or external.
  • So, a two-stage amplifier with negative feedback is always stable.
  • A two-stage amplifier with negative feedback has an overshoot when damping factor K is Less than unity.
     

​Explanation:

Underdamped system has the damping factor K is less than 1 and the peak overshoot occurs.

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An amplifier of gain 1000 is made into a feedback amplifier by feeding 9.9% of its output voltage in series with the input opposing. If fL = 20 Hz and fH = 200 kHz for the amplifier without feedback, then due to the feedback
Assertion (A): A linear, negative feedback control system is invariable stable if its open loop configuration is stable Reason (R): the negative feedback reduces the overall gain of the feedback.