3. The loop gain of an amplifier is given by: В x (5 x 10) (1+ j) (1 + j) (1 +j it) The pole at fpi = 10' is to be moved such that the feedback amplifier with a closed-loop low-frequency gain of 50 has a phase margin of 55 degrees. (a) Find the value of 3.

3. The loop gain of an amplifier is given by: В x (5 x 10) (1+ j) (1 + j) (1 +j it) The pole at fpi = 10' is to be moved such that the feedback amplifier with a closed-loop low-frequency gain of 50 has a phase margin of 55 degrees. (a) Find the value of 3.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.3P

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Question

3.
The loop gain of an amplifier is given by:
Вx (5х 109)
(1+j ) (1 +j) (1 + j
The pole at fpi = 10' is to be moved such that the feedback amplifier with a closed-loop
low-frequency gain of 50 has a phase margin of 55 degrees.
(a) Find the value of 3.
(b) Determine the new pole frequency.
You may use f125 2.505 x 10° Hz.

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