User`s guide

3
-
24 Preparin
g
a Schematic for Simulation
To determine the s
y
mbol name for an equivalent
current source
1
In the table of voltage source symbols, replace the first V in
the symbol name with I.
Usin
g
VSTIM and ISTIM
You can use VSTIM and ISTIM symbols to define any kind of
time-based input signal. To specify the input signal itself, you
need to use the Stimulus Editor.
To start the Stimulus Editor for a VSTIM or ISTIM
s
y
mbol
1
Double-click the symbol instance on your schematic.
You are now ready to specify the input signal’s behavior. To
find out how, see The Stimulus Editor Utility on page 11-5
.
*. VSTIM and ISTIM symbols require the Stimulus Editor to define the input
signal; these symbols are not available in Basics+.
**. VPWL_F_RE_FOREVER and VPWL_F_N_TIMES are file-based
symbols; the stimulus specification resides in a file and adheres to PSpice
netlist syntax.
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*
If you want this kind of
input...
Use this symbol for
volta
g
e...
Example: The current source
equivalent to VDC is IDC, to VAC
is IAC, to VEXP is IEXP, and so
on.
not
included
in: