2. -
: - .
.
, . .
.
, ( ), ( ) , .
. 1, () n-p-n . :
( + ┴), ( ), .. I, I U0, U0, . U, , U, , R. R I, I , U. 1 2 ( ).
, . 1, .
k = ,
10 100.
. :
k = k1k2...kN,
N .
. (, ), .
. 2 , - (RC) , . 2. R 1 2 . R1-R2 R3-R4 1 2 .
RC- . 3, (1 2). . , .
|
|
-. . . 4. ab (.. U U), k = const). bc , , . (ab).
- . RC- . 5.
k0 . ( f→0) 2 :
XC2 = →∞
, , k→0 f→0. 0 f→∞
XC0 = →0,
, k→0 f→∞.
.
=
=
k k . . f f , , ,
Δf = f - f
.