ElectricCircuitTheoryHW5Fa09

# ElectricCircuitTheoryHW5Fa09 - op-amp operates in the...

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-1- EK307 – Electric Circuit Theory – Homework #5 – Fall 2009 Problem 1. ) The op-amp circuit shown below is fed from a current source of value I 1 . What is the output voltage v O ? Problem 2. ) Find v O in the op-amp circuit shown below: Problem 3. ) Consider the op-amp circuit shown below. Note that negative feedback is established because R 1 connected between the op-amp’s output and v + terminals. Use superposition to find v O . v O R = 2 k I 1 = 1 mA R 3 = 10 k v O R 1 = 20 k R 2 = 10 k v S v O V 1 = 4 V R 1 = 2 k I 1 = 1 mA

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-2- Problem 4. ) For the circuit shown below, assume that negative feedback prevails and that the
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Unformatted text preview: op-amp operates in the linear region. Therefore, v D = ( v + v ) = 0. What is the value of the voltage v O across resistor R 2 ? Problem 5.) Find v O in the circuit shown below. Hints : a) Represent I 1 and R 1 by a Thvenin equivalent circuit. b) Represent the dependent source behind v O , plus R 3 , as a Thvenin-like circuit. c) Use superposition to find v O . R 2 = 2 k v O V 2 =1 V R 1 = 10 k V 1 = 2 V v O R 4 = 10 k I 1 = 2 mA R 3 = 10 k R 1 = 5 k R 2 = 20 k...
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## This note was uploaded on 12/29/2009 for the course ENG EK 307 taught by Professor Horenstein during the Spring '09 term at BU.

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ElectricCircuitTheoryHW5Fa09 - op-amp operates in the...

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