User Guide

Transient analysis
33
To add a time-domain voltage stimulus
1 From Capture’s PSpice menu, point to Markers and
choose Delete All.
2 Select the ground part beneath the VIN source.
3 From the Edit menu, choose Cut.
4 Scroll down (or from the View menu, point to Zoom,
then choose Out).
5 Place a VSTIM part (from the PSpice library
SOURCESTM.OLB) as shown in Figure 14.
6 From the Edit menu, choose Paste.
7 Place the ground part under the VSTIM part as shown
in Figure 14.
8 From the View menu, point to Zoom, then choose All.
9 From the File menu, choose Save to save the design.
To set up the stimulus
1 Select the VSTIM part (V3).
2 From the Edit menu, choose PSpice Stimulus.
The New Stimulus dialog box appears.
3 In the New Stimulus dialog box, type
SINE.
4 Click SIN (sinusoidal), then click OK.
5 In the SIN Attributes dialog box, set the first three
properties as follows:
Offset Voltage = 0
Amplitude = 10
Frequency = 1kHz
6 Click Apply to view the waveform.
The Stimulus Editor window should look like
Figure 15.
or press C+v
If you do not have the
Stimulus Editor
1 Place a VSIN part instead of VSTIM and
double-click it.
2 In the Edit Part dialog box, click User
Properties.
3 Set values for the VOFF, VAMPL, and
FREQ properties as defined in step 5
.
When finished, click OK.
Note
The Stimulus Editor is
not included in PSpice Basics.
Pspug.book Page 33 Wednesday, November 11, 1998 1:14 PM