User`s guide

17
-
56 Analyzin
g
Waveforms in Probe
Rules for numeric values suffixes
Explicit numeric values are entered in the same form as
PSpice A/D (by means of symbol attributes in Schematics), with
the following exceptions:
• Suffixes M and MEG are replaced with m (milli, 1E-3) and
M (mega, 1E+6), respectively.
• MIL and mil are not supported.
• With the exception of the m and M scale suffixes, Probe is
not case sensitive, therefore upper and lower case characters
are equivalent.
Unit suffixes are only used to label the axis; they never affect the
numerical results. Therefore, it is always safe to leave off a unit
suffix.
The units that Probe recognizes are shown in Table 17-11
.
Table 17-11
Output Units Recognized by Probe
Symbol Unit
Vvolt
A amps
Wwatt
d degree (of phase)
s second
Hz hertz
Example: V(5) and v(5) are
equivalent in Probe.
Example: The quantities 2e-3,
2mV, and .002v all have the
same numerical value. For axis
labelin
g
purposes, Probe
reco
g
nizes that the second and
third forms are in volts, whereas
the first is dimensionless.
Probe also knows that W=V·A,
V=W/A, and A=W/V. So, if you
add this trace:
V(5)*ID(M13)
the axis values will be labeled
with W.
For a demonstration of analo
g
trace presentation, see
Analog
Example on page 17-22.