: (), (), ().
, . , .
( .1) .
, UK RH . , ( ) (1-10 ).
.1
(U =0) -I, I, . - , R1 R2 ( )
E Ux I , .
( n-p-n), , 1 .
, RH, , .
UH ( U).
.
, .
( .2 ) I, , I.
.2
, .
( h- - h21) :
I =DI/DI =DI/(DI-DI)=1/(1-DI/DI)=1/(1- a) > 10 (1)
R ( - ),
R - ( - )
< 1 (0,9 - 0,95);
10-100.
.
.
(.3).
, , RH, .
, .
|
|
.3
, I. R6X , , .
R - .
(10-100):
I = DI/DI (2)
I b ( h- - h21).
b=DI/DI=DI/(DI-DI)=1/(DI/DI)-1 (3)
, a =DI/DI
b =a/1-a (4)
,
DU= DIK R
KU= DIK R / DU (5)
a, 1 I . :
K P = K I K U = b K U (6)
, ( 10000).
.