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A three-pole feedback amplifier has a loop gain given by B(104) f T(f) = 1+j 55) (₁ f 103 TO)(¹+ (₁ 1+j 104 1+j f 105 1) Sketch Bode plots of the loop gain magnitude and phase for: ß = 0.005, and (b) B = 0.05. 2)Is the system stable or unstable in each case? 3)What is the phase margin in each case?

A three-pole feedback amplifier has a loop gain given by B(104) f T(f) = 1+j 55) (₁ f 103 TO)(¹+ (₁ 1+j 104 1+j f 105 1) Sketch Bode plots of the loop gain magnitude and phase for: ß = 0.005, and (b) B = 0.05. 2)Is the system stable or unstable in each case? 3)What is the phase margin in each case?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A three-pole feedback amplifier has a loop gain given by B(104) f f f 1+j 16²) (1 + 1 1/²) (1 + 1 10₁) 5) 10³ 104 T(f) = = 1) Sketch Bode plots of the loop gain magnitude and phase for: ß = 0.005, and (b) ß = 0.05. 2)Is the system stable or unstable in each case? 3)What is the phase margin in each case?
Transcribed Image Text:A three-pole feedback amplifier has a loop gain given by B(104) f f f 1+j 16²) (1 + 1 1/²) (1 + 1 10₁) 5) 10³ 104 T(f) = = 1) Sketch Bode plots of the loop gain magnitude and phase for: ß = 0.005, and (b) ß = 0.05. 2)Is the system stable or unstable in each case? 3)What is the phase margin in each case?
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