| 1. ... 2. 2.1. 2.2. 2.3. . 2.4. . 2.5. . 3. () ... 4. ... 4.1. .. 4.2. .. 4.3. 4.4. ... 4.5. ... 5. ... |
,
:
1. .1;
2. 2N915;
3. 3.6;
4. Ke= 
R
R (..4);
5. C
f f (..4);
6. : -40... +60.
N=130*N+ N=1181, N=11-
N=9-
:
(N / 30) + 1=12 => 2N915
:
n-p-n => .1
(N / 8) + 1=6 => 3.6
,
(N / 6) + 1=6=> Ke=3, R=1200 , R=150
(N / 6) + 1=6 => fn=50, f=10, =950
2.
. 1
. 2 () 2N915
. 3 () 2N915
- 
.
- 
.
- 
.
- - 
.
- - 
.
- - 
.
|
|
|
- 
.
- 
.
- 
.
.
- 
.
.
- 
.
20.
U = 2U
IA > I~ + I0,
I0 = 3 ,
I~ = 
= 3 
IA>12 .
, , IA =15,5 .
(0, ) (U, I).
:
R= = 
= R+R
R= = 
R = 4 R= > R= 160
R = 4*R= 640 .
R 24:
R=620
R~ R || R , 1, : 
I = 1 / R~.
R~ = 
= 409
I = 2
, : . Ik U , I << I , 
< <U .
|
4. .
, : . 200 . 50 .
R1 R2
1. :
R,
I = 
UT / R==0.00125,
I = I / 
=0.00014,
∆ = max =75,
= ξ 
T=-0.06 , ξ = 1 /◦, 
T=60 .
R ≤ 3.354
R , , .
2. UT, :
I = UT / R==0.00125 .
I = 
I1 + I2,
I1 = ξ T / R=0.000375 - ,
ξ = 1 /◦.
I2 = 0.000875 .
I2 = 
- 
,
∆ β = βmax β=75,
= 
= 0.10014,
I .
R = 1920 .
3. I1 >> I, I2 >> I, I = I / . I1 = 10 I, , :
I1 = I2 + I
= U + I R = 0.7 + (
) I R
= I2 R2
E = I1 R1 + I2 R2
I1=0.0014
I2= 0.00126
= 3.5224
R1 R2
R1 = 11770
R2 = 2795
24:
R1 = 12 R2 = 2.7
R= =800
R=160
|
|
|
R2 =2.7
R1=12
U= 0.7
:
R = R1 || R2=2204
R = R + R (1+ 
)=2204+160*(1+125)=22364
E = E 
=3,67
I = 
I
E= U + I R,
E= U + I R=
:
I =-0.000132
U =6.72
I =-0.0165
5 (I,U).
, 5 .
5. , .
