ELCT_371_Homework2_Sp11

# ELCT_371_Homework2_Sp11 - ELCT 371 Spring 2011...

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ELCT 371: Spring 2011 Homework #2 (based on Chapter 2) Topics covered: Inverting and non-inverting op-amps, summing point constraint, Gain vs. frequency, op-amp limitations. Due: February 22, 2011 (in class) 1. Each of the circuits shown in Figure P2.10 employs negative feedback. Assume that the op amps are ideal, and use the summing-point constraint. Analyze the circuits to find the value of Vo for each circuit. 2. Determine the closed-loop voltage gain of the circuit shown in Figure P2.14, assuming an ideal op amp. All of the resistors are equal in value. 3. The circuit shown in Figure P2.18 employs negative feedback. Use the summing-point constraint (for both op amps) to derive expressions for the voltage gains A 1 = vo 1 / v in and A 2 = vo 2 / v in. 4 . Find an expression for the power gain of each of the amplifiers shown in Figure P2.24, Assume ideal op amps. Which circuit has the higher power gain? 5.

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ELCT_371_Homework2_Sp11 - ELCT 371 Spring 2011...

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