Environmental Engineering Reference
In-Depth Information
was 20. The voltages at all nodes were solved using sampled-data simu-
lation and the voltage at node 3 are plotted in Fig.7.18. As shown in the
figure, the voltage at node 3 is discontinuous at
where inconsistent initial conditions are encountered and continuous at
where only consistent initial conditions are en-
countered. This observation demonstrates that sampled-data simulation
can handle both the inconsistent and consistent initial conditions at the
switching instants. The results from PSPICE analysis are also plotted
in the figure for comparison.
The normalized difference between the results from sampled-data sim-
ulation and those from PSPICE are measured. Two different situations
are considered. Inside each clock phase where no discontinuity in the
response, the normalized difference for time points except switching in-
stants is defined as
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