finalreview1

finalreview1 - : What would make the Problem 7 circuit a...

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EE 40 Final Exam Review Problems Set 1 Challenging! Medium to Hard Difficulty Problem 1 : Design a circuit that, when V IN = sin(2 π t), produces an output V OUT shown below. Problem 2 : Suppose V a and V b are both positive voltages. What is the output V OUT for the circuit below? Problem 3 : Suppose V a and V b are both positive voltages. Design a circuit for which V OUT = V a V b . 1 V 0 V V b V a V a 0 V 0 V V b 0.5 V 0.5 V V MAX 0 V 1 k 1 k V OUT 1 k 1 k V 0.125 s 0.375 s 0.625 s 0.875 s 1 V -1 V
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Problem 4: Let W/L µ N C OX = 1 mA/V 2 , V TH(N) = 1 V, λ = 0.1 V -1 . Find the Thevenin equivalent with respect to a and b in terms of V GS , using the small-signal model. Problem 5: Design a circuit which, IN THEORY, produces The design only needs to work “on paper”. Problem 6 : What are some things that would make your design from Problem 5 infeasible? Problem 7 : W/L µ N C OX = 200 µ A/V 2 , V TH(N) = 1 V, λ = 0 V -1 . Find V DS for the NMOS transistor. Problem 8
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Unformatted text preview: : What would make the Problem 7 circuit a better constant current source than our usual one? . e V IN V OUT = 1 k 2 k 12 V 2 V S Problem 9 : Let V 1 = V 2 = 10 V, C 1 = C 2 = 145 pF, R coil = 20 k , R 1 = R 2 = 10 k . Coil holds the switch in place as long as it voltage exceeds 5 V. Suppose I hold the switch down long enough to fully charge C 2 and then flip the switch up (and let go) instantaneously at t = 0. Sketch V out (t), or state which time intervals V out (t) = 1 V and when V out (t) = -1 V. Problem 10 : For the circuit, graph, and tree shown above: a) Determine the fundamental cut set for each tree branch. b) Consider the two supernodes that each fundamental cut set creates. Write a KCL equation for each fundamental cut set. 2 20 10 20 4 5 10 V 2 A a b c d e f g h...
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finalreview1 - : What would make the Problem 7 circuit a...

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