. . (, , ), () .
.
. , . -
RC- LC-, - RC-
LC- (. 1.5)
. 1.5. :
- RC-; - RC-;
- LC-; - LC-
q.
q = . / .,
. ;
. .
.
<< R,
,
= 1 / (mω ); m = f01 / fc,
m (
m = 1, m = 2);
;
f01 ;
fc ;
. = U01m / U; U01m ≈ ΔU / 2;
U01m ;
U ;
ΔU
( ),
ΔU = I / (mfc C),
. = 1/ (2mfc C R) C = 1 / (2mfc . R).
:
C = 108 / [ (2mfc ( . %) R)],
. % ,
.
108 , .
. - RC-
. 1.5.
, :
<< R; << R, R = (0,2 1,0) R.
|
|
q = (R / R) (R + R) mω C; ω = 2πfc,
C
( ).
- RC- - RC- .
.
L >> R,
mω L >> R.
q = .. / ., , q >> 1,
R >> rL, L = (q R)/(mω),
rL .
. - LC-
- LC-
L >> R << R.
LC = (q + 1) / (mω)2.
L, C, .
L C :
LC ≥ 4 / (mω)2.