Question: Figure 3 shows a common emitter (CE) small signal amplifier. Assuming V BE of 0.7 V Vcc = 15 V R1 4.7 kn C3 470
Figure 3 shows a common emitter (CE) small signal amplifier. Assuming V BE of 0.7 V
Vcc = 15 V R1 4.7 kn C3 470 F Rc 1000 N 470 F o Vout Boc = 100 Bac = 50 %3D RL 1000 n 15 mV R2 RE1 3.3 kn 330 n{ Rg2 330 n{ C2 10 F Figure 3 a. Draw the equivalent DC circuit (1 mark) b. Determine DC operating point (Icq and VCEQ) by using Thevenin's Method (3 marks) c. Draw the equivalent AC circuit (1 mark) d. Determine AC voltage gain (A, = Vou/ Vs) and AC current gain (A; = IJI.) (3 marks)
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