 |
, p-n-p, , . : R1, R2 - , , R, R - , R - . R2 R (R2= ∞, R=0), R - (). , - . R . , ( ) , . .
, :
)
(10-30)%
U - -n-.
) () (1,5¸2)
I..³ 2I
- ;
I..- ( ) .
, . + (25¸27).
208. :
U = 20
I = 300
P = 0.2
h21 = 2060 ( h21 = 40)
f = 1
:
- 208
. . :
= UI.
U, I .
1
| U, | |||||
| I, |
,
U = 0 ,
R = R + R - .
|
|
|
I = 0, U = E = 12 .
R , ( 3): (, 0) .
:
)
I 
1.2I 9.6
U U.+ U = 5 + 1 = 6
I - ;
I - ( );
U - -.
U 1.
) , , ( 3).
APD ( 3) I, I:
I = 0.24
I P1 .
I I. :
I = I + I = 9.6 + 8 = 17.6 ,
I. =I I = 9.6 8 = 1.6 ,
I - () .
I, I., ,
I = 0.44
I. = 0.04
U = 11.2 ,
U. = 1.5 .
- :
