, : , . , , , . , , , X/Y FF. , .
, , , , .
,
U=UxUy/Ur=KUxUy (6.1)
Ur=K-1 .
, , , . , , , . Ux Uy . 6.1. , . , .
.6.1. .
Ur ( ), , . , U U. , . 1/25 ÷10. ,
U= UxUy/10 (6.2)
.. =0,1 -1. . 6.1.
: , , ., . 6.2, , .6.2, .
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. , Ux. S Ux:
U=SRUx (6.3)
R .
.6.2. :
() ()
Uy 3. R 3
= Uy/ R
, , , -
Ik=Is (6.4)
U>φT ,
S= = ∙ . (6.5)
, :
U= RyUx= UxUy=UxUy (6.6)
=R/(Rφ) .
:
, :
Uy , , Uy , .. ;
Ux (6.4), , Ux.
. Uy , . , .6.3. Uy , .. .
) )
.6.3. () ()
, :
u=R(i1+i3)-R(i2+i4) (6.7)
, .. u= u=0, : i1=i2+ i3=i4= i. u . , u=0, u>0, i1 i2 , i3 i4 . u :
i1 = i2 = i(1+u); i3 = i4 = i(1-u), (6.8)
. (6.8) (6.7) , u=0.
u=0 u>0, ,
i1 = i4 = i(1+u), i2 = i3 = i(1-u), (6.9)
u=0.
, , (6.8) (6.9),
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i1 = i(1+u)(1+u);
i2 = i(1+u)(1-u);
(6.10)
i3 = i(1-u)(1-u);
i4 = i(1-u)(1+u)
(6.10) (6.7),
u=4kxkyRiouxuy=kuxuy (6.11)
k=4kxkyRio .
. .6.3, . Ro/R1.
. , . , . , . , , U Uy , ω ω,
U= Umxcos(ωxt), Uy= Umycos(ωyt) (6.12)
, ,
U(t)=0,5KUmxUmy[cos(ωx-ωy)+ cos(ωx+ωy)] (6.13)
0,5KUmxUmy. . . Ux= Uy=Umcosωt,
U(t)=0,5KUm2(1+cos2ωt) (6.14)
, .
. (6.14) , :
, .. U=UxUy=Ux2, ( Ux=Uy).
(6.15)
.6.4. .
. , .
.6.5. .
U1 , U.
, U2=KUxUy, U2=KUxU. I1=U1/R; I2=U2/R. , (- ). .. I1=I2, U1=U2 U1= KUxU, ,
U= (6.16)
. . , , . 6.6. . : U2=KU2, U =U1=U2 ( ).
: U= (6.17)
.6.6. .
, , , .
-1.
. , (, , ) , . . .
() , . :
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u(t)= . (1.1)
0= - (1.2)
n = -
bn = - (1.4)
ω1 () , nω1 (n>1) .
, u(t)=u(-t), (1.1) bn, (1.4) . u(t), , , an, bn.
(1.1), , , : u(t)= A0+ (1.5)
0=0/2, n= - , φn=arctg(bn/an) n- .
u(t)= , (1.6)
Cn=Cn(jω)= (1.7)
- n .
. - - . An , φn . Cn (. .1).
.1. : ; ;
- .
, , n . , . , , - .
RC-, ≥18,4, RC- - ≥15,4, - ≥14,1.
-2.
.
() , () →∞.
, u(t) ( ) (.2.12, ). , (.2.12, ) un(t)=u(t+nT). 0, , -
-3.
, , . .
, .
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( ) , , ().
() . , . , . , . . , ( ) , () . , .
. - - , .