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FIG. 18.101
Using PSpice to determine the open-circuit Thévenin voltage.
Since the magnitude and the angle of the voltage are required,
VPRINT1 is introduced as shown in Fig 18.101. The simulation was an
AC Sweep simulation at 1 kHz, and when the Orcad Capture window
was obtained, the results appearing in Fig. 18.102 were taken from the
listing resulting from the PSpice-View Output File. The magnitude of
the Thévenin voltage is 5.187 V to compare with the 5.08 V of Example
18.8, while the phase angle is �77.13° to compare with the
�77.09° of the same example—excellent results.
FIG. 18.102
The output file for the open-circuit Thévenin voltage for the network
of Fig. 18.101.
COMPUTER ANALYSIS ⏐⏐⏐ 833