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d) The magnitude and phase shift of the loop-gain for a feedback amplifier are collected in a table below. Sketch the Nyquist diagram and determine if the circuit is potentially stable or not. IB.4 BA O 2 4 5 6 5 4 2 0 180° 135° 90° 45° 0° -45° -90°-135° -180° e) An amplifier is selected in a circuit design, but it has an input impedance that is too big and an output impedance that is too small. This problem can be resolved by connecting a feedback network to the amplifier. Explain the type of feedback connection required and the reason for it. OR R₁ v. Figure 4: Non-inverting op-amp

d) The magnitude and phase shift of the loop-gain for a feedback amplifier are collected in a table below. Sketch the Nyquist diagram and determine if the circuit is potentially stable or not. IB.4 BA O 2 4 5 6 5 4 2 0 180° 135° 90° 45° 0° -45° -90°-135° -180° e) An amplifier is selected in a circuit design, but it has an input impedance that is too big and an output impedance that is too small. This problem can be resolved by connecting a feedback network to the amplifier. Explain the type of feedback connection required and the reason for it. OR R₁ v. Figure 4: Non-inverting op-amp

Power System Analysis and Design (MindTap Course List)
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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d) The magnitude and phase shift of the loop-gain for a feedback amplifier are collected in a table below. Sketch the Nyquist diagram and determine if the circuit is potentially stable or not. IB.4 BA O 2 4 5 6 5 4 2 0 180° 135° 90° 45° 0° -45° -90°-135° -180° e) An amplifier is selected in a circuit design, but it has an input impedance that is too big and an output impedance that is too small. This problem can be resolved by connecting a feedback network to the amplifier. Explain the type of feedback connection required and the reason for it. OR R₁ v. Figure 4: Non-inverting op-amp
Transcribed Image Text:d) The magnitude and phase shift of the loop-gain for a feedback amplifier are collected in a table below. Sketch the Nyquist diagram and determine if the circuit is potentially stable or not. IB.4 BA O 2 4 5 6 5 4 2 0 180° 135° 90° 45° 0° -45° -90°-135° -180° e) An amplifier is selected in a circuit design, but it has an input impedance that is too big and an output impedance that is too small. This problem can be resolved by connecting a feedback network to the amplifier. Explain the type of feedback connection required and the reason for it. OR R₁ v. Figure 4: Non-inverting op-amp
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