. . .
, (. 7.7). (. 7.7 ) (Q < 30), (. 7.7 ) (Q > 30). Lx Rx , C 4 R 4 . R 3. R 4 (. . 7.7 ), (. . 7.7 ) C 4. G. (Z1Z4 = Z2Z3) (. 7.7 ):
(Rx + j ω Lx)[1 / (1 / R 4 + j ω C 4)] = R 2 R 3, (7.6)
ω ; j ; R 2, R 3 R 4 .
Rx = R 2 R 3/ R 4; (7.7)
Lx = C 4 R 2/ R 3. (7.8)
(7.7) (7.8) , , , .
Qx = ω Lx / Rx = ω C 4 R 4.
ω C 4 R 4 Qx.
, (. 7.7 ), :
(Rx + j ω Lx)[ R 4 + 1 / (j ω C 4)] R 2 R 3. (7.9)
(7.9)
RxR 4 + Lx / C 4 = R 2 R 3;
ω Lx + R 4 = R 4/ (ω C 4),
Rx Lx :
Rx = ω2 R 2 R 3 R 4/ [1 + (ω C 4 R 4) 2 ]; (7.10)
Lx = C 4 R 2 R 3/ [1 + (ω C 4 R 4) 2 ] (7.11)
Qx = ω Lx / Rx = 1 / (ω C 4 R 4).
, R 4 Qx.
(7.10) (7.11) Rx Lx , . ω . , .
. C 3 R 2 R 4 (. . 7.7 ). () Cx Rx. Rx . G.
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Rx = R 2 R 3/ R 4, (7.12)
Cx = C 3 R 4/ R 2. (7.13)
tgδ, Rx
tgδ = ω CxRx.
(7.12) (7.13) :
tgδ = ω R 3 C 3.
1 ?
2 ?
3 ?
4 ?
5 ?
6 ?