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2. 腅......................5
3. 充........6
4. ......7
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7. 䅅.. 18
8. ..19
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2
3
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1
:
Pmax³(0.25¸0.3)P max³(1.25¸1.5) ()
VT2 VT3 - 818 819 . :
Imax = 10(A) Umax = 25 (B)
Pmax = 1.5 (B) h21 = 10 - 15
818 (819):
U= ()/2=15/2=7.5 (B) I= /2=15/2=7.5 (A)
Ku=(2*Umax)/(
*E)=(2*5,477)/ ( *0,4)=19,36
, :
n=lg(Ku)=lg(19,36)=1,2869
, .
. 2.
|
|
|
2 - 818 (819)
818 (819) :
I0=20 (A) U0=0,78 (B)
Imax= 100 (A) Umax=0,95 (B)
3 - 818 (819)
:
F=1+g21*R, g21 - .
F=1+10,74*3=33,22
:
I= 
I
0.02(A)
, , : I=100 (A)
, R3 , 68 .
R5 R6:
R5+R = (-U0)/I0
R5+R = (15- 6.8)/1.1 = 7
R5 = 7 - 3 = 4
, R5 R6 , 3,9 .
I= I+I0; I=100+20=120 (A)
: 2*U0=1.56 [B]
-102 .
-102 4.
4 - -102
:
; 
;
|
:
 |
:
R=100 (O)
1.
1
| I, (A) | I, (mA) | U, (B) | I* R, (B) | E= I * R+U, (B) |
| 0.764 | 1,6 | 2,364 | ||
| 0.78 | 2,78 | |||
| 0.80 | 2,7 | 3,5 | ||
| 0.82 | 3,4 | 4,22 | ||
| 0.834 | 4,834 |
5.
5
 |
:
Im1= 
= 
520
Im2= 
=20
Im3= 
=0
Im4= 
=-6.67
:
0= 
=4,05
,
, . 3117. :
h21=20..200
Pkmax=0.3
Ikmax=400mA
Umax=60B
6 3117
:
7
I=Uc/Rc=0.4/(70*10 
)=0,57*10 
;
R4= 
=17,54 ;
Ku=19,36;
R2= 
;
2= 
=2,156
1:
1= 
3= 
663,48
:
F= 
:
=0/F=4,05/5=0,81, 2.5%, .
R1 R4, , , .
:
|
|
|
R4=R1=18
R2=510
2=2,2
1= 
3=680
, :
8
:
|
ω = 2πf ;
τ = τβ + τ ;
τ = *R, ( ); R .
ω = 2*3,14*15000 = 94200 
;
c
τ = 60*10-12*3 = 1,8*10-10 c
τ = 5,3*10-8 + 1,8*10-10 = 5.318*10-8 c
ω = 2π*f
ω = 2*3,14*80 = 502,4 ;
 |
:
9
6.
.
R1: 
R3: 
R5: 
R6: 
R4: 
R2: 
.. 15, , 25, .. .
7
.
, .
, , . .
.
8 .
1. ..
- : 1983 .
2. ..
- : 1994 .
3. ..
- .: - 1996 .
4. ..
: ໔.
5. ..
- : 1983 .
 |
