User`s guide

Parametric Analysis 12
-3
Overview of Parametric Anal
y
sis
Parametric analysis performs multiple iterations of a specified
standard analysis while varying a global parameter, model
parameter, component value, or operational temperature. The
effect is the same as running the circuit several times, once for
each value of the swept variable.
See Parametric Analysis
on page 2-24 for a description of how
to set up a parametric analysis.
Example: RLC Filter
This example shows how to perform a parametric sweep and
how to analyze the results with performance analysis.
With performance analysis, values can be derived from a series
of simulator runs and plotted versus a parameter that varies
between those runs. For this example, the derived values we
wish to plot are the overshoot and the rise time versus the
damping resistance of the filter. Deriving these values by hand
is quite involved and letting the simulator do the work for us is
an appealing alternative.
Enterin
g
the schematic
The schematic for the RLC filter (rlcfilt.sch) is shown in
Figure 12-1.
Fi
g
ure 12-1
Passive Filter Schematic