
A feedback system has an amplifier with a low-frequency open-loop gain of
(a)

Value of frequency at the given values.
Answer to Problem 12.77P
Value of frequency is 1.005×106Hz.
Explanation of Solution
Given information:
Given values are −
The phase of loop gain is 180 degrees
Calculation:
Loop gain can be written as −
Phase of loop gain can be written as −
Value of frequency is −
(b)

Value of ß at the given values.
Answer to Problem 12.77P
Value of ß is 2.83×10-3.
Explanation of Solution
Given:
Given values are −
Calculation:
Value of phase angle of loop gain is −
Magnitude of frequency is −
Value of ß is −
(c)

Value of low frequency closed loop gain.
Answer to Problem 12.77P
Value of low frequency closed loop gain is 350.87.
Explanation of Solution
Given:
Given values are −
Calculation:
Value of closed loop gain is given by −
Value of low frequency gain is −
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Chapter 12 Solutions
Microelectronics: Circuit Analysis and Design
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