V1
Ik1max=Imax=1,3.
U1max=U=220
809 (n-p-n), h21max=15100 : I
kmax=3A, U
max=400 .
- R1=10 .
, , , , VD1, Imax=Imax=1,3. Umax=U=380 .
2220 Umax=400, Imax=3.
- VT1 U=4 VT2
Ik2max=I1+IR1=Ik1max/h21max + U/R1 = 1,3/100 + 4/10 = 0,413
VT2 Umax=380 . VT2 809.
R2 10 .
, R3, :
IR3=I2+IR2=K*Ik2max/h122max+U2/R2=1,5*0,413/100+4/10=0.406 ,
=1,5.
U1 . VT6 VT5 , U5 ( VT6 VT5 ). VT3 VT4: U=U1-U5-U3 U1+U2 , R3 . ,U1 :
U1+U2+U5+U3=4+4+3+1=12.
U1=24,U2=-24 . VT3 Ik3max=IR3=0,406 Uk3max=2U1=48.
809. VT3, ,
I3=IR3/(h213min+1)=0.406/16=0.027=27
U3=3, R3, .
R3=(U1-U5-U3-U1-U2)/IR3=(24-3-1-4-4)/0,406=29,5
R3=30 .
VT1, , 1:
I13=K(Ik1max/(h21min+1))=1*1.3/16=0.08.
:
I1=I1+I1=U1min/R1+(-U+U1min-U2)/R3.
VD2 2220, : I
max=3, I
max=60, U
max=400 U
2, 1, :
U=-((I1*R1*R3-U1min*R3+(U1min-U2))/R1)=
=-(0.08*10*30-4*30+(4-1))/10=-9.3
VT4
Ik4max=I1=(-U+U1min-U2)/R3=(9,3+4-1)/30=0,41, U4max=48.
809. VT4 :
I4=I1/(h214min+1)=0,41/16=0,03
U4=1, R4
UR4=U-U4+U2=-9,3-1+24=13,7
VT1, VT2 VT3 , :
R4=UR4/I4=13,7/0,03=457
R4=470 .
R7 I=0,02.
R7=(U3-U-U)/I=(5-0,3-1,25)/0,02=172,5 , 180 .
U , U , . 101, KI=1%,
I=I6=KII=0,2
VT5 VT6 809 :
Imax=3, Umax=400, h216=15100.
VT6
I=h216min*I6=15*0,2=3
I=(h216min+1)*I6=(16)*0,2=3,2
VT3
I3=IR3/(h213min+1)=0,406/16=25
, R4:
IR4=(U1-U5-U2)/R4=(24-3+24)/470=95
VT5
I5=I3+IR4-I=25+95-3,2=117
VT5 -.
I5=Ik5/h215min=117/15=8mA; U5=0,8
R6=U5/(I-I5)=0.8/(8-3,2)=160
, VT6 R5:
U6+UR5=U5-U5=3-0,8=2,2
VT6 1,5, ,UR5=2,2-1.5=0.7. IR5, R5=233. R5=250 .
, :
; .
;
;
VT1 VT2 , (0,01÷0,3 ): ;
: .
, : VT6 , , . , χ=t(i+1)/ti i- , , >1,
.
|
|
VT6
| VT5
| VT3
| VT2
| VT1
|
k
|
|
|
| 1,5
|
|
ti,
| 0,016
| 0,016
| 0,005
| 0,3
| 0,3
|
c
|
|
| 0,132/0,005
=26,4
| 0,137/0,3
=1,32
| 0,437/0,3
=1,46
|
t,
| 0,116
| 0,132
| 0,137
| 0,437
| 0,737
|
, , 0,737. , VT4, VT3 (0,137), VT2 (t2), VT1 (t1), VT2 (t2).
VT2
I2=4/10+20/30=0,4+0,6=1
VT2
K=(I2*h21)/Ik2=(1*15)/0.4=3.75
. . , VT2 ,
, ,
VT2, , VT2
, , VT2 ,
, , 20 . ,
-
U1=U1 + U2 =4+4=8 .
:
50 =50 , . .