ECE102_W08_Quiz3

ECE102_W08_Quiz3 - ECE102 Student ID Quiz 3 Question Pages...

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ECE102 Quiz 3 – Question Pages Winter 2008 1 For Q1 : g m = 2 mA/V and r o = 2 k For Q2 : g m = 1 mA/V and r o = 1 k For Q3 : g m = 1 mA/V and r o = 1 k 1 k Student ID Name (Last, First) Write your answers on the separate answer pages; we will not look at these question pages. Question 1 (3 points): Find V 1 , V 2 and V 3 . Question 2 (1 + 3 = 4 points): (a) What is the name of the configuration of Q2-Q3 (not including the 1 k resistor)? (b) Find the small-signal gain from v in to v out . Question 3 (4 points): Find the value of the small signal resistance r eq (i.e. the small signal resistance between the point and ground). 5 V V 1 2 k 1 k V 2 V 3 0.1 mA β = 9 g m = 1 mA/V = 2 r o = 4 k 2 k r eq 5 V v in Q2 Q3 Q1 2 k v out 5 V
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ECE102 Quiz 3 – Question Pages Winter 2008 2 Question 4 (1 + 3 + 1 + 1 = 5 points): In the circuit below, you may assume both C 1 and C 2 are very large. From measurements, we find: v 1 (mV) = 2 sin( ω t) and R
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ECE102_W08_Quiz3 - ECE102 Student ID Quiz 3 Question Pages...

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