User`s guide

Usin
g
the Parts Utility to Edit Models 4
-23
The Parts Utilit
y
Tutorial
In this tutorial, you will model a simple diode device as follows:
• Create the schematic for a simple half-wave rectifier.
• Run the Parts utility from the schematic editor to create an
instance model for the diode in your schematic.
Creatin
g
the half-wave rectifier schematic
To draw the schematic
1
Start Schematics.
2
From the Draw menu in the schematic editor, select Get
New Part.
3
Place one each of the following symbols (reference
designator shown in parentheses) as shown in Figure 4-4:
• Dbreak (D1 diode)
• C (C1 capacitor)
• R (R1 resistor)
• VSIN (V1 sine wave source)
• AGND (0 analog ground).
4
From the Draw menu, select Wire, and draw the connections
between symbols as shown in Figure 4-4.
5
From the File menu, select Save As.
6
Type
rectfr and click OK to save the schematic to
rectfr.sch.
Note
If you were to simulate this desi
g
n usin
g
a transient
analysis, you would also need to set up a transient
specification for V1; most likely, this would mean
definin
g
the VOFF (offset volta
g
e), VAMPL
(amplitude), and FREQ (frequency) attributes for
V1. For this tutorial, however, you will not run a
simulation, so you can skip this step.
Fi
g
ure 4-4
Schematic for a
Half-Wave Rectifier
or press
C+W