A feedback system has an amplifier with a low-frequency open-loop gain of (5 times 10^{4}) and has

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A feedback system has an amplifier with a low-frequency open-loop gain of $5 \times 10^{4}$ and has poles at $10^{3} \mathrm{~Hz}, 10^{5} \mathrm{~Hz}$, and $10^{7} \mathrm{~Hz}$.

(a) Determine the frequency $f_{180}$ at which the phase of the loop gain is 180 degrees.

(b) Determine the feedback transfer function $\beta$ for which the phase margin of the system is $45^{\circ}$.

(c) Using the results of part (b), determine the low-frequency closed-loop gain.

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Microelectronics Circuit Analysis And Design

ISBN: 9780071289474

4th Edition

Authors: Donald A. Neamen

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Question Posted: May 08, 2024 03:00 AM

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A feedback system has an amplifier with a low-frequency open-loop gain of (5 times 10^{4}) and has

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Microelectronics Circuit Analysis And Design

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