Practice Final 2

Practice Final 2 - ECE65 Winter 2007 Final Exam Notes 1 For...

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Unformatted text preview: ECE65, Winter 2007, Final Exam Notes: 1. For each problem, 20% of points is for the “correct” final answer. 2. Messy, incoherent papers lose point! Explain what you are doing! 3. OpAmps have a unity-gain bandwidth of 10 6 Hz, a maximum output current limit of 100 mA, and a slew rate of 1 V/ μ s. OpAmps are powered by ± 15 V power supplies, 4) Use the following information in designing circuits: BJT Si transistors have β = 400, β min = 200, r π = 3 kΩ, and r o = 100 kΩ. Use 5% tolarence commercial resistor and capacitor values of 1, 1.1, 1.2, 1.3, 1.5, 1.6, 1.8, 2, 2.2, 2.4, 2.7, 3., 3.3, 3.6, 3.9, 4.3, 4.7, 5.1, 5.6, 6.2, 6.8, 7.5, 8.2, 9.1 ( × 10 n where n is an integer). You can also use 5 mH inductors. Problem 1. Find the Thevenin resistance of the circuit below (Assume OpAmp is ideal). (10 pts) Problem 2. Find i as a function of v (The Si diode has a Zener voltage of 4 V). (10 pts) Problem 3. Consider the band-pass filter below with R 1 = 10 kΩ, R 2 = 100 kΩ, C 1 = 160 nF,...
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