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FIG. 5.68
Applying Electronics Workbench to a series dc circuit.
zontal line for dc analysis is the same for each. Again, the Set key can
be selected to see what it controls, but the default values of meter input
resistance levels will be fine for all the analyses described in this text.
Leave the meters on the screen so that the various voltages and the current
level will be displayed after the simulation.
Recall from Chapter 4 that elements can be moved by simply clicking
on each schematic symbol and dragging it to the desired location. The
same is true for labels and values. Labels and values are set by doubleclicking
on the label or value and entering your preference. Click OK,
and they will appear changed on the schematic. There is no need to first
select a special key to connect the elements. Simply bring the cursor to
the starting point to generate the small circle and crosshair. Click on the
starting point, and follow the desired path to the next connection path.
When in location, click again, and the line will appear. All connecting
lines can make 90° turns. However, you cannot follow a diagonal path
from one point to another. To remove any element, label, or line, simply
click on the quantity to obtain the four-square active status, and select the
Delete key orthe scissors key on the top menu bar.
Before simulating, be sure that the Simulate Switch is visible by
selecting View-Show Simulate Switch. Then select the 1 option on the
switch, and the analysis will begin. The results appearing in Fig. 5.68
verify those obtained using PSpice and the longhand solution.
C��
We will now turn to the C�� language and review a program designed
to perform the same analysis just performed using PSpice and EWB.
As noted in earlier chapters, do not expect to understand all the details
of how the program was written and why specific paths were taken.
COMPUTER ANALYSIS ⏐⏐⏐ 157