EE 230 HW 4 Spring 2010

# EE 230 HW 4 Spring 2010 - EE 230 Homework 4 Spring 2010...

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EE 230 Homework 4 Spring 2010 Problem 1 Three β networks are shown along with the type of ‘A’ amplifier if this is to be used in a standard feedback network. Determine the value of β in all three cases. You may assume the port impedances of the A amplifier are ideal and that the signal propagation through the β network is in the direction of the arrow. Circuit 1 ‘A” amplifier is a voltage amplifier R 3 R 4 Circuit 2 ‘A’ amplifier is a transresistance amplifier Circuit 3 ‘A’ amplifier is a transconductance amplifier

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Problem 2 Assume an A amplifier has an input impedance of 100K, an output impedance of 40 , and a nominal dc gain of 150. If the circuit is driving a 100 load with a signal generator that has an output impedance of 50 and an open-circuit output voltage of 0.5sin(500t+30 o ), determine the steady state output voltage. Problem 3 A voltage amplifier has an input impedance of 100K, an output impedance of 40 , and a nominal dc gain of 150. If this drives a transresistance
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## This note was uploaded on 02/01/2012 for the course EE 230 taught by Professor Mina during the Fall '08 term at Iowa State.

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EE 230 HW 4 Spring 2010 - EE 230 Homework 4 Spring 2010...

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