User Guide

Chapter 3 Preparing a design for simulation
76
To determine the part name for an equivalent current source
1 In the table of voltage source parts, replace the first V
in the part name with I.
Using VSTIM and ISTIM
You can use VSTIM and ISTIM parts to define any kind of
time-based input signal. To specify the input signal itself,
you need to use the Stimulus Editor. See The Stimulus
Editor utility on page 10-253.
piecewise-linear that repeats n
times
VPWL_N_TIMES or
VPWL_F_N_TIMES**
frequency-modulated sine wave VSFFM or VSTIM*
sine wave VSIN or VSTIM*
* VSTIM and ISTIM parts require the Stimulus Editor to define the input signal.
** VPWL_F_RE_FOREVER and VPWL_F_N_TIMES are file-based parts; the
stimulus specification is saved in a file and adheres to PSpice netlist syntax.
Table 13
If you want this kind of input... Use this part for voltage...
Examp
l
e: T
h
e current source equiva
l
ent to
VDC is IDC, to VAC is IAC, to VEXP is IEXP,
and so on.
Pspug.book Page 76 Wednesday, November 11, 1998 1:14 PM