Environmental Engineering Reference
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indicating that the computational cost of sampled-data simulation is
nearly independent of the number of simulation windows.
7.2 Switched Capacitor Integrator
with Nonlinear Op Amp
Consider the switched capacitor integrator shown in Fig. 7.14.
The nonlinear gain of the operational amplifier is
modeled as The clock frequency
is 100 kHz and the input is a cosine wave. The output response and its
sensitivity to are obtained using sampled-data simulation and the
results are shown in Fig.7.15.
The sensitivity results are computed using sampled-data simulation
and brute-force approach with 1% parameter variation. The results are
as plotted in Fig.7.16. A good agreement is observed.
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