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Feedback - Quiz 4 - Engineer Electronics II | ECE 3110, Quizzes of Electrical and Electronics Engineering

University of Utah (The U)Electrical and Electronics Engineering

Material Type: Quiz; Class: Engineer Electronics II; Subject: Electrical & Computer Engg; University: University of Utah; Term: Fall 2008;

Typology: Quizzes

Pre 2010

Uploaded on 08/30/2009

koofers-user-2nt
koofers-user-2nt 🇺🇸

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ECE 3110: Engineering Electronics II Fall 2008
Quiz #4
Topic: Feedback
Date: Nov. 7, 2008
Useful formulae:
Z parameters: V1=I1Z11 +I2Z12 and V2=I1Z21 +I2Z22
Problem 1: Consider the series-series feedback amplifier shown in Fig. 1.
(a) Calculate the input and output loading parameters for the feedback net-
work (Z11 and Z22).
(b) Use the feedback loading, RS, and RLto calculate the open-loop gain
(A=Io/VS) for the amplifier.
Figure 1: Series-series feedback amplifier.
1

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ECE 3110: Engineering Electronics II Fall 2008

Quiz

Topic: Feedback

Date: Nov. 7, 2008

Useful formulae:

Z parameters: V 1 = I 1 Z 11 + I 2 Z 12 and V 2 = I 1 Z 21 + I 2 Z 22

Problem 1: Consider the series-series feedback amplifier shown in Fig. 1.

(a) Calculate the input and output loading parameters for the feedback net- work (Z 11 and Z 22 ). (b) Use the feedback loading, RS , and RL to calculate the open-loop gain (A = Io/VS ) for the amplifier.

Figure 1: Series-series feedback amplifier.