User Guide

12 Tutorial: Optimizin

a Desi

n (Passive Terminator)

The optimizer repeats this process until it achieves success,

failure, or you terminate the process (from the Tune menu,

point to Auto and select Terminate).

For this example, let the process run to completion. This

takes 5 more simulations.

As the optimization proceeds, the vertical gauge and

numeric display fields in the error gauge area (far left in the

PSpice Optimizer window) show updated values. The

numeric field shows the total error (the sum of the squares

of the normalized errors for the active specifications) and

the gauge shows the error relative to the starting point. Final

results are shown in Figure 5-3.

ure 5-3

Optimization Results for the Passive Terminator

Example

Compare the parameter values of 133.5 for R1val and 393.7

for R2val with the calculated values on page 5-2

. They are

very close.