Cadence PSPICE SCHEMATIC Manual de usuario descargar pdf (Pagina 6)

Place part

Net alias (names a node)

Add or remove junction

Place power connection

Place hierarchical block

Hierarchical pin

Show that pin is deliberately not connected

Selection tool

Wiring tool

Place bus

Add entry to bus

Place ground connection

Hierarchical port

Place off-page connector

Polygon

Ellipse

Text

Line

Rectangle

Arc

Figure 6: Toolbar for Schematic window in Capture.

have terrible trouble joining the wires to them.

• There is a button to select the Project Manager, which can also be activated from

the Window menu.

• The ﬁnal button is for Help.

2. The second toolbar along the top is for PSpice commands. You are in trouble if this is

missing! If this happens, ﬁrst check the type of project, which must be Analog or Mixed

A/D. I’ll explain the functions of the buttons later.

3. The third toolbar, down the right-hand side of the screen, is for drawing circuits and is

shown only when a Schematic window is active. I’ve resized it and labelled the buttons

in ﬁgure 6.

Let’s put this into action and simulate a simple circuit: a potential divider.

3 Capture and simulation of a potential divider

We’ll ﬁrst draw and simulate a very simple circuit: a potential divider supplied by a battery. Of

course you can solve this circuit mentally in a second or two but the aim is to gain familiarity

with the software. First, place the components.

3.1 Place the components

Make the Schematic window active. We next need to ﬁnd the components: two resistors to form

the potential divider, a DC voltage source (battery) and a ground. Their symbols are shown in

ﬁgure 7 on the next page.

Choose Place > Part. . . from the menu bar, click the Place Part button on the right-hand

toolbar or type P. This brings up the dialogue box with a list of parts shown in ﬁgure 8 on the

following page, from which you choose the desired component.

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Cadence PSPICE SCHEMATIC Manual de usuario Pagina 6

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