Summer 2012 Final

Name ______________________________ ECE 201 Final Exam August 4, 2010 By signing below, I certify that the work submitted on this examination is my own, and that I have adhered to fair standards of academic honesty. This exam is void unless signed. _________________________________ signature Instructions a) Write your name on the front page ONLY. b) Show all your work for the following problems so that partial credit can be assigned. Cross out clearly any work which is to be disregarded. Be certain that the answer is distinguishable from the work. Unsupported answers will not be given credit unless otherwise indicated. c) Extra paper is available if needed. Be sure to label the problem number for each page of your work. d) Use units where required. Answers without units are incomplete, and cannot be assigned full credit. e) Be sure that your work, and discussions and explanations when requested, are clear, concise, and organized. f) Potentially useful formulas are listed on the final page of this exam. g) The point distribution on this exam is as follows: Score Prob. 1 Prob. 2 Prob. 3 Prob. 4 Prob. 5 Prob. 6 Prob. 7 Prob. 8 Total Score 25 Pts. 25 Pts. 25 Pts. 25 Pts. 25 Pts. 25 Pts. 25 Pts. 25 Pts. 200 Pts. Prob. 3 Sum 6, 8 Prob. 5 Prob. 7 Prob. 8 Prob. 4 Outcome #4 (≥13 pts.?) Outcome #5 (≥25 pts.?) Outcome #6 (≥13 pts.?) Outcome #7 (≥13 pts.?) Outcome #8 (≥13 pts.?) Outcome #9 (≥13 pts.?) Yes Yes Yes Yes Yes Yes No No No No No No Prob. 1 Outcome #2 (≥13 pts.?) Yes No

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(25 Pts.) 1. Write a set of equations sufficient to solve for the nodal voltages VA, VB, and VC. Do not solve.

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(25 Pts.) 2. Determine the Thévenin equivalent of the following network.

Vth =

Rth =

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(25 Pts.) 3. For the following circuit, and VIN(t) as shown, determine Vout(t) for t > 0.

Vout(t) =

0 < t < 20µsec

Vout(t) =

t < 20µsec

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(25 Pts.) 4. Consider the following ideal op amp circuit. VIN(t) is shown in the plot. Determine the output voltage