su10q10 - C 1 . (b) Solve For the worst case high-pass pole...

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ECE 3050 Analog Electronics Quiz 10 July 28, 2010 Professor Leach Name Instructions. No calculators allowed on this quiz. Print your name in the space above. Honor Code: I have neither given nor received help on this quiz. Initials 1. For the following four feedback ampli±ers, signal trace the circuits and identify whether the feedback is negative or positive. (a) positive, (b) negative, (c) positive, (d) negative, (e) negative, (f) positive next page 1
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2. The fgure shows the signal circuit oF a CE amplifer. Given: R s = 1 . 2 kΩ , R 1 = 51 kΩ , R 2 = 62kΩ , R C = 6 . 8kΩ , R L = 12 kΩ , R E = 3 . 3kΩ , R 3 = 330Ω , C 1 = 0 . 22 μ F , C 2 = 1 . 2 μ F , C 3 = 330 μ F , r π = 2 . 2kΩ , β = 99 , r 0 = , r ib = r π + (1 + β ) R te , and r ie = ( R tb + r π ) / (1 + β ) . (a) Solve For the worst case high-pass pole Frequency For
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Unformatted text preview: C 1 . (b) Solve For the worst case high-pass pole Frequency For C 2 . (c) Solve For the worst case high-pass shelving pole and zero Frequencies For C 3 . (d) Solve For the worst case lower cuto Frequency f L oF the circuit. r ib = r + (1 + ) R E b R 3 = 32 . 2k f 1 = 1 2 ( R s + R 1 b R 2 b r ib ) C 1 = 44 . 7Hz f 2 = 1 2 ( R C + R L ) C 2 = 7 . 06Hz r ie = R s b R 1 b R 2 + r 1 + = 33 . 5 f 3 p = 1 2 ( r ie b R E + R 3 ) C 3 = 1 . 33Hz f 3 z = 1 2 ( R E + R 3 ) C 3 = 133 mH f L = r f 2 1 + f 2 2 + f 2 3 p 2 f 2 3 z = 45 . 3Hz 2...
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su10q10 - C 1 . (b) Solve For the worst case high-pass pole...

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