Protek Z9216 - Page 9

Using the quality factor, the impedance of an inductor is seen to be
(
)
(
)
QjLjQRLjRZ /11
+
=
+
=
+=
ω
ω
(13a)
and the inductor’s series equivalent circuit components can be expressed in terms of its parallel
equivalent circuit components as
2
1 Q
R
R
p
+
=
,
2
2
1 Q
LQ
L
p
+
=
(13b)
The impedance of a capacitor in terms of the quality factor is
()(
jD
C
jQRCjRZ −=−=+=
ω
ω
1
1/1
)
(14a)
and the capacitor’s series equivalent circuit components can be expressed in terms of its parallel
equivalent circuit components as
2
1 Q
R
R
p
+
=
,
(
)
p
CDC
2
1+= (14b)
5