1
IT, 1 (. 1.)
. 1. IT
, , , , ( ) . , ^
(1)
YL1, YL2, YL3 - :
U - ;
a - , .
YL1 = YL2 = YL3 = Y (.. R L1 = R L2 = R L3 = R L1= L2 = L3 = ), :
(2)
(3)
Z -
(4)
R - ; - .
(5)
R L1 = R L2 = R L3 = R , .. L1= L2 = L3 = = 0, (4)
, . . Ih = f(R) = 0 ( ) Ih = f() R = const, . 2.
. 2. , , IT ,
(.3), , , L2, , , , .
. 3. IT
:
(6)
R - ( .3 - L2).
R<<Rh , :
(7)
. 4. IT
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IT, , (. 4; L3) R:
(8)
I - ; a1, a2 - .
a1= a2=1
IT , R, Rh. , R<< Rh,
, .
, ( ) IT , . , , , .
IT