CHAPTER 5
5.1
Base Contact = B
Collector Contact = A
Emitter Contact = C
ntype Emitter = D
ntype Collector = F
Active Region = E
5.2
V
C
B
E
+

+

v
BE

+
v
BC
i
C
i
E
i
B
For
V
BE
>
0 and
V
BC
=
0,
I
C
=
β
F
I
B
or
β
F
=
I
C
I
B
=
275
μ
A
4
μ
A
=
68.8
β
R
=
α
R
1
−
α
R
=
0.5
1
−
0.5
=
1
I
C
=
I
S
exp
V
BE
V
T
⎛
⎝
⎜
⎞
⎠
⎟
or
I
S
=
I
C
exp
V
BE
V
T
⎛
⎝
⎜
⎞
⎠
⎟
=
275
μ
A
exp
0.64
0.025
⎛
⎝
⎜
⎞
⎠
⎟
=
2.10
fA
5.3
+
+

v
BC
i
E
i
C
i
B
C
E
B

+

V
v
BE
For
V
BC
>
0 and
V
BE
=
0,
I
E
= −
β
R
I
B
or
β
R
= −
I
E
I
B
= −
−
275
μ
A
125
μ
A
⎛
⎝
⎜
⎞
⎠
⎟
=
2.20
β
F
=
α
F
1
−
α
F
=
0.975
1
−
0.975
=
39
I
E
= −
I
S
exp
V
BC
V
T
⎛
⎝
⎜
⎞
⎠
⎟
or
I
S
=
I
C
exp
V
BE
V
T
⎛
⎝
⎜
⎞
⎠
⎟
=
275
μ
A
exp
0.63
0.025
⎛
⎝
⎜
⎞
⎠
⎟
=
3.13
fA
123
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