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A negative unity-feedback LTI system has a forward element consisting of an amplifier with adjustable real-valued gain K in cascade with a transfer function G(s), the loop gain KG(s) for some fixed K > 0 known to generate the asymptotic Bode plot description shown in Figure 4. (dB) Magnitude (deg) Phase 892000 60 40 -20 -40 -60 -80 90 45 0 -45 -90 -135 -180 -225 0.01 0.1 0.4 1 4 10 40 100 Frequency (rad/sec) 400 1000 10000

A negative unity-feedback LTI system has a forward element consisting of an amplifier with adjustable real-valued gain K in cascade with a transfer function G(s), the loop gain KG(s) for some fixed K > 0 known to generate the asymptotic Bode plot description shown in Figure 4. (dB) Magnitude (deg) Phase 892000 60 40 -20 -40 -60 -80 90 45 0 -45 -90 -135 -180 -225 0.01 0.1 0.4 1 4 10 40 100 Frequency (rad/sec) 400 1000 10000

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A negative unity-feedback LTI system has a forward element consisting of an amplifier with adjustable real-valued gain K in cascade with a transfer function G(s), the loop gain KG(s) for some fixed K > 0 known to generate the asymptotic Bode plot description shown in Figure 4. Magnitude (dB) (deg) Phase 60 40 20 80 -20 -40 -60 -80 90 45 0 -45 -90 -135 -180 -225 10 4 40 100 400 1000 Frequency (rad/sec) Figure 4: Asymptotic Approximation of Bode Plot for KG(s) for some fixed K > 0 0.01 0.1 0.4 1 10000
Transcribed Image Text:A negative unity-feedback LTI system has a forward element consisting of an amplifier with adjustable real-valued gain K in cascade with a transfer function G(s), the loop gain KG(s) for some fixed K > 0 known to generate the asymptotic Bode plot description shown in Figure 4. Magnitude (dB) (deg) Phase 60 40 20 80 -20 -40 -60 -80 90 45 0 -45 -90 -135 -180 -225 10 4 40 100 400 1000 Frequency (rad/sec) Figure 4: Asymptotic Approximation of Bode Plot for KG(s) for some fixed K > 0 0.01 0.1 0.4 1 10000
Assuming |G(j1)| = 1 = 0 dB, determine the value of K implied by the sketch. Suggest corrections at two different frequencies in the magnitude plot. (1) At w = (2) At w = Suggest corrections at two different frequencies in the phase plot. (1) At w = (2) At w = K = adjust KG(jw) dB by adjust |KG(jw)|aB by. adjust LKG(jw) by adjust LKG(jw) by
Transcribed Image Text:Assuming |G(j1)| = 1 = 0 dB, determine the value of K implied by the sketch. Suggest corrections at two different frequencies in the magnitude plot. (1) At w = (2) At w = Suggest corrections at two different frequencies in the phase plot. (1) At w = (2) At w = K = adjust KG(jw) dB by adjust |KG(jw)|aB by. adjust LKG(jw) by adjust LKG(jw) by
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