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(ELEC202)pass_mt1_ans.pdf
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THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING

Elec 202 Philip Mok
ELECTRONIC CIRCUITS II
Fall 2002 Room 2440
MID-TERM #1 (ANSWERS)
(1)
(a) IC1 = 0.2145 mA, IC2 = 3.607 mA, VX = 0.7214 V, VY = 2.786 V, VZ = 1.421 V

(b) IC1 = 0.1777 mA, IC2 = 3.644 mA, VX = 0.7178 V, VY = 2.712 V, VZ = 1.436 V

(2)
(a) IC1 = IC2 = 4.627 mA

(b)
gm = 0.1780 A/V, re = 5.564 ., r = 561.9 ., ro = 21.61 k.

(c)
Ri = 1.105 k., Ro = 977.0 ., vo/vi = 43.73 V/V, io/ii = 48.34 A/A



(3)
(a) VOmin = 0.2982 V


(b) overdrive factor = 4.468
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