, , ( 5.1).
5.1 -
U = U
Rbx = R (1 + KU)
R = R (1 + KU)
. , , , KU, ..
ΔU = ΔU - ΔU = ΔU / KU
KU → ∞ ΔU → 0 U = U .
U - U = U - U . , , , , .
, , , , .
. , 5.1, , . , . , b < 1.
, 5.2. .
5.2 -
boc = R1/ (Roc - R1)
,
Kuooc = KU /(1 + KU boc)= KU /[1 +R1 KU /(Roc - R1)]
KU →∞
Kuooc =(Roc - R1)/ R1=1+ Roc / R1= 1/ boc
:
- () ;
- . .
, 5.3.
5.3 -
:
Ky = 1+R1/R2
U0 UCM :
U0 = UCM
. U U . , .. . 5.4
|
|
5.4 -
(). R1, .
, 1. R = ∞ IBX = 0, IBX=Ioc,
(Ubx - Uo)/R1 = - (UBX Uo)/R
KU → ∞ Uo = UBX / KU → 0,
Ubx /R1 = - UBX / R
, KU = UBX / UBX
KU = - R /R1
R = R1, KU = -1, 5.4 ( ).
, , . , , R = 0, bOC = 1 . U = U. , , . . 1800.
, 5.5.
5.5 - |
:
= - Rf () / R1
"" , . U0 UM :
U0 = UM