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Unformatted text preview: v OUT D 1 10 10 I 1 (A) = sin( t) V 1 (V) = 5 G(s) +  v out R v in 1 k 10 2 10 4 <G (rad/s) 180 90 10 10 1  G  (dB) (rad/s) 60 10 3 ECE102 Quiz 2 Question Pages Winter 2009 2 (a) If (s) = 106 , what is the phase margin? (b) If (s) = 1/ s and x(t) = cos(10 t ) is applied at the input of the feedback system, what is the output y(t) ? Question 4 (6 points): Find voltage V 1 . Question 5 (6 points): In the circuit shown, D 1 and D 2 are identical diodes with V* = 1V, n = 2 and I S = 1012 A. What is the value of ( v B v A )? [You have to give an actual value] 10 1 10 4 10 7 <A (rad/s) 90 180 270 10 1 10 4 10 7  A  (dB) (rad/s) 140 0 80 = 9 V A  = 10 V 7 k 1.7 V 1 k 1 mA V 1 v B D 1 100 1 F 2 A 5 V D 2 100 v A 1 A 1 mA 1 mA...
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This document was uploaded on 05/26/2010.
 Spring '09

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