A three pole feedback amplifier has a loop gain given by T(f) frac beta left(5 times 10 4 ight) left(1 j frac f 10 3 ight) left(1 j frac f 5 times 10 4 ight) 2 (a) Determine the frequency (f 180 ) at which the phase is 180 degrees (b) At the frequency (f 180 ), determine the value of ( beta ) such ...

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A three-pole feedback amplifier has a loop gain given by [T(f)=frac{betaleft(5 times 10^{4} ight)}{left(1+j frac{f}{10^{3}} ight)left(1+j frac{f}{5

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A three-pole feedback amplifier has a loop gain given by

\[T(f)=\frac{\beta\left(5 \times 10^{4}\right)}{\left(1+j \frac{f}{10^{3}}\right)\left(1+j \frac{f}{5 \times 10^{4}}\right)^{2}}\]

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

(b) At the frequency $f_{180}$, determine the value of $\beta$ such that $\left|T\left(f_{180}\right)\right|=0.25$.

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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 three-pole feedback amplifier has a loop gain given by [T(f)=frac{betaleft(5 times 10^{4} ight)}{left(1+j frac{f}{10^{3}} ight)left(1+j frac{f}{5

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Microelectronics Circuit Analysis And Design

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