1.
- /+
312
, , 1:
| U | U | I | I0 | f | h11 | h12 10-3 | h21 | h22 | |||
| 312 | 0,2 | 0,06 |
1: 312
U - -
U - -
I -
P -
h21 -
f -
R 0,8 h11 =0,8*300=240
β= h21=40
, 2:
| r | Rr | K0 | R | S | τ | T | T | |
2:
r - ;
K0 - ;
Rr - ;
R - (R R);
τ - ;
Tmax, Tmin - ;
S -
U.max=Er*K=150 
40=6
:
15
R: 
30 ; E= 15 ; R=15 /30 =500
:
R=510
p= 
=114,75
- U=7,5
: 
=15*10-3 /40=375
R: 
=15,375
R = (0,2,,0,3) E / I=0,25*15 B/15,375 =244
R =240
p= 
=56,73
R: 
R=1394,3
R=1400
=15*10 
*240+0,6=4,2 ,
- , 
.
. 
=4,2+0,375*10 
*1394,3=4,72
=15*1394/4,72=4430
=4430*1394/(4430-1394)=2034
: R1=4300 , R2=2200.
|
|
|
=15/(4420+2050)=2,3
P1= 
=23,38 P2= 
=10,84
:
| R | R | R1 | R2 |
| 4700 | 2200 |
, . Δ I Δ=2 
∆ 
= S[∆ 
- ∆ 
/(
)+∆β/ β*( + 
)]
∆ =I0 
=0,2 
=2,7
∆ =2,3*10-3*∆=2,3*10-3*20=0,046
∆β=0,1*β*∆/10=0,1*40*2=8
∆ = 5[2,7*10-6- 0,046/(1400+240)+8/40*(0,2*10-6+375*10-6)]=0,574
2
15 15,574
