UNIVERSITY OF CALIFORNIA BERKELEY Department of Electrical Engineering and Computer Sciences EE100 EE42 Intro To Electronics Engineering Summer 2008 Bharath Bart Simpson Muthuswamy SAMPLE FINAL August 15h 2008 Time Allotted 2 hours NAME print Last First STUDENT ID CIRCLE ONE EE100 EE42 I WILL NOT CHEAT ON THIS EXAM Signature Note s 1 You will receive 3 pts for filling out the information above 2 MAKE SURE THE EXAM HAS 11 NUMBERED PAGES 3 This is a CLOSED BOOK exam However you may use FOUR 8 5 x 11 of notes both sides and a calculator 4 SHOW YOUR WORK on this exam MAKE YOUR METHODS CLEAR TO THE GRADER so you can receive partial credit 5 WRITE ANSWERS CLEARLY IN THE SPACES lines boxes or axis PROVIDED 6 Remember to specify units on answers whenever appropriate SCORE This page 3 1 22 2 25 3 25 4 25 TOTAL 100 1 PROBLEM 1 22 points For the circuit shown below with the nonlinear i v characteristic as shown in the figure find all equilibrium states and classify each as stable or unstable a b When the switch S is in position 1 11 points When the switch S is in position 2 11 poitns a Equilibrium points and stability b Equilibrium points and stability 2 EXTRA WORKSPACE FOR PROBLEM 1 3 PROBLEM 2 25 points Consider the circuit shown below a What is Vout t for 0 6 points b What is Vout t for 6 points c What is Vout t for 106 rad sec 13 points a Vout t for 0 b Vout t for c Vout t for 106 rad sec 4 EXTRA WORKSPACE FOR PROBLEM 2 5 PROBLEM 3 25 points For the circuit below sketch the Vout vs t graph in the axis provided for the given input signal DO NOT IGNORE THE EFFECTS OF THE OP AMP RAIL VOLTAGES DO NOT CHANGE THE LIMITS ON THE GRAPH 6 EXTRA WORKSPACE FOR PROBLEM 3 7 EVEN MORE EXTRA WORKSPACE FOR PROBLEM 3 8 PROBLEM 4 25 points Assuming the op amp below is ideal sketch the v0 vs vi characteristic i e the transfer characteristic for the circuit below Notice the model for the diode below is NOT the ideal diode model Use the axis provided for your sketch Mark salient features on your graph like the slope of a straight line segment 9 Use the axis below for your sketch DO NOT CHANGE THE LIMITS 10 EXTRA WORKSPACE FOR PROBLEM 4 11
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