
Network Functions − s-Domain Analysis of Circuits 413
A capacitor in the s-domain is represented as shown in Figure 10.5(b) with initial charge V
0
.
−
−
+
SL
LI
o
i
−
+
Cs
i
V
o
s
Figure 10.5 Representation in s-domain with Initial Stored Energy (a) inductor;
(b) Capacitor
10.3 ONE-PORT NETWORK
It is a network that has only one port, that is, one pair of
terminals. It is shown in Figure 10.6.
The block diagram representation of one-port net-
work as shown has only one port 1-1′. v(t) is the volt-
age at the input port and i(t) is the input current.
For the one-port network, we can determine either
the impedance or the admittance. These are defined as ...