Connection machine trace
square6
A manual trace is placed exactly as you specify, even
running through a component or trace if that is the path
you set out
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A follow-me trace automatically draws a legal trace
between the pins you select with your mouse
movements—you can move from pin to pin, leaving a
legal trace
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A connection machine trace automatically joins two pins
by the most efficient route, though you have the option of
changing it

Dr Z.HAROUNI
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Autoroute
square6
Select
Autoroute»Start Autoplacement
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The parts are automatically placed on the circuit board
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Select
Autoroute»Start/Resume Autorouter
.
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The workspace switches to
Autorouter Mode
and trace
autorouting begins
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As autorouting proceeds, you will see traces being placed on the
board
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When autorouting is complete,
Autorouter Mode
closes and you
are returned to the workspace
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The autorouter can be stopped at any time and you can make
manual changes as desired
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When you restart the autorouter, it will continue with the
changes you made

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Autoroute Final Product

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2017
Cleaning up the Board
square6
Before sending the board for manufacturing, you
should clean up any open trace ends (trace
segments that do not have any terminating
connections in the design) and unused vias that
have been left on the board
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To delete open trace ends, click
Edit»Copper
Delete»Open Trace Ends
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To delete any unused vias, make sure the design is
open and click
Design»Remove Unused Vias

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Exporting Files
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An exported file contains complete information
describing how a finished board is to be
manufactured
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Files that can be exported include:
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Gerber
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RS-274X
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RS-274D files

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2017
Example 1: Simple DC Analysis in Multisim
Let
’
s construct the simple circuit shown in figure 4.
Figure 4. A simple series circuit constructed in MultSim

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2017
Constructing this circuit in Multisim is easy:
1. Left-Click on the Power Source Family in the Virtual Toolbar.
2. The Power Source Components will pop up.
3. Left-Click on the DC Power Source icon and drag a battery onto the circuit
workspace. Figure 5 shows the result.
Figure 5. A DC power source in Multisim

Dr Z.HAROUNI
2017
If you want to change the value of the power source, Double-click the battery. This
opens up the Power Sources dialog box shown below.
Figure 6. Power Sources Dialog box. Use this to change the value of the battery voltage.

Dr Z.HAROUNI
2017
Let’s add the resistor and the potentiometer. Left-Click the Basic Components
Family in the Virtual Toolbar.
5. The Basic Components will pop up.
6. Left-Click on the Virtual Resistor tool and drag a resistor onto the workspace.
As in the case of the battery, you can Double-click the resistor to change
component values.


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