Ngày tải lên :
29/10/2013, 19:15
... boû qua I
BQ
.
mA83
50
100
10
7, 07, 1
R
R
7, 0V
I
1
b
E
BB
1EQ
=
+
−
=
β
+
−
=
mA100
10
7, 07, 1
R
7, 0V
I
E
BB
2EQ
=
−
=
−
≈
Ω≈=
−
−
21
10.83
10.25
.50.4,1h
3
3
1ie
... V
BB
≈ V
BE
+ I
EQ
R
E
= 0 ,7 + 8.10
-3
.10
3
= 8,7V.
Suy ra:
Ω≈Ω==
−
=
−
= K4,55368
652,0
10.5,3
25
7, 8
1
1
10.5,3
V
V
1
1
RR
3
3
CC
BB
b1
Ω≈Ω=== K06,10100 57
7,8
25
10.5,3
V
V
RR
3
BB
CC
b2
...
A10mA10
R
7, 0V
I
2
E
BB
CQ
−
==
−
≈
suy ra V
BB
= 0 ,7 + 100.10
-2
= 1,7V
Ω==β= K1100.100
10
1
R
10
1
R
Eb
Ω≈=
−
=
−
= K2,1
83,0
10
10
7, 1
1
10
V
V
1
1
RR
33
CC
BB
b1
Ω=== K88,5
7, 1
10
10
V
V
RR
3
BB
CC
b2
...