, , .
.
. RC RL , .
) :
U(jω) = I(jω)∙xc/j = I(jω)∙1/(jωC);
I(jω) = U(jω)/[R + 1/(jωC)] = jωC∙ U(jω)/(jωRC +1);
U(jω) = U(jω)/(jωRC +1). (1)
(1) , jω :
U() = U(p)/(RC +1) = U(p)/( +1). (2)
(2), ) :
W(p) = y/x = U()/U(p) = 1/( +1), (3)
1, RC.
) :
I(jω) = U(jω)/(R + jxL) = U(jω)/(R + jωL);
I(jω) = U(jω)∙(1/R)/[jω∙(L/R) +1)]. (4)
(4) jω , ) :
I() = U()∙(1/R)/[∙(L/R) +1)] = U()∙K/( +1). (5)
(5) , :
W(p) = y/x = I()/U(p) = K/( +1), (6)
1/R, L/R.
,25 .
. RLC :
:
U() = I(p)∙1/pC = U(p)∙(1/pC)/[R + pL + (1/pC)] =
= U(p)/(p2CL + pRC + 1) = U(p)/(p2T2 + p2ξT + 1), (7)
2 = CL; 2ξT = CR.
:
W(p) = y/x = U()/U(p) = 1/(p2T2 + p2ξT + 1), (8)
= 1.
ξ :
T = √CL; 2ξ√CL = CR,
ξ = CR/(2√CL) = 0,5∙R∙C/√(C∙L). (9)
(R = 0) (9): ξ = 0, .. . , ξ = 1, .. , 0,5∙R∙C = √(C∙L) R2∙C = 4L.
|
|
.
L. ) , . ) , .
) :
U() = I()∙1/(). (10)
, :
W(p) = y/x = U()/I(p) = (1/C)/p = /, (11)
= 1/.
, , . , , . , .
):
I() = U()/(L). (12)
, :
W(p) = y/x = I()/U(p) = (1/L)/p = /, (13)
= 1/L.
. . ) , - . ) , .
) :
I() = U()∙. (14)
, :
W(p) = y/x = I()/U(p) = pC = , (15)
= .
, .
):
U() = I()∙L. (16)
, :
W(p) = y/x = U()/I(p) = pL = ∙, (17)
= L.