For the Darlington network:
a. Determine the dc levels of VB1, VC1,
VE2, VCB1, and VCE2
b. Find the currents IB1, IB2, and
IE2
c. Calculate Zi and Zo
d. Determine the voltage gain Av =
Vo/Vi and current gain Ai =
Io/Ii
Given hie = 2.4 k ohms, hfe =
Beta = 50 and 120, hre = 4x10-4,
and hoe = 25 uS, sketch:
e. Common-emitter hybrid equivalent model.
f. Common-emitter re equivalent model.
g. Common-base hybrid equivalent model.
h. Common-base re equivalent model.
V₁ o 2.4 ΜΩ 0.1 μF ĐF l₁ +16 V l2 B₁ = 50, B₂ = 120 VBE,= VBE, = 0.7 V HE ovo + 10 μF 510 22
For the Darlington network: a. Determine the dc levels of VB1, VC1, VE2, VCB1, and VCE2 b. Find the currents IB1, IB2, a
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