울산대 전자회로1 족보.docx

University of Ulsan School of Electrical Engineering
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Final Term Examination, 2013 Fall

1. For the voltage-divider bias configuration of Fig.1, determine: (20points)
a. IBQ (5points)
b. ICQ (5points)
c. VCEQ (5points)
d. VC (5points)
Figure 1

2. Determine the following for the network of fig.2: (20points)
a. S(ICO) (5points)
b. S(VBE) (5points)
c. S(β), using T1 as the temperature at which the parameter values are
specified and β(T2) as 25% more than β(T1). (5points)
d. Determine the net change in IC if a change in operating conditions
results in ICO increasing from 0.2μA to 10μA, VBE drops from 0.7V to 0.5V,
and β increases 25%. (5points)
Figure 2

3. For the network of Fig.3, determine: (20points)
a. re (4points)
b. Zi (4points)
c. Zo (4points)
d. AV (4points)
e. Vo if Vi=2mV (4points)

Figure 3
4. For the cascade a…