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This module provides a brief introduction to electrical and electronic component manipulation in National Instruments Multisim. Multisim is fully featured SPICE schematic capture and simulation tool used for circuit design, simulation, and in combination with Ultiboard for layout of custom PCBs.

Component placement, rotation, selection and wiring

Placement, rotation, and selection

Once parts have been selected from their respective database, it is time to place them onto the schematic,and wire them together. Double-clicking on a component in the browser will attach that component to the cursor. This behavior isknown as“ghosting”. Ghosting helps guide users when placing components anywhere on the schematic by left-clicking at thedesired location.

Components can also be rotated while ghosting, and any time after placement. To rotate a part while ghosting,press Ctrl-R. Ctrl-R will also work when a placed component is selected. Placed components can also be rotated by right-clickingon them and selecting 90 Clockwise or 90 CounterCW.

Component Rotation
Replacing Components

To select a component, simply-left click on it. To select multiple components, click and drag to create aselection around the desired components. A dashed line indicates that a component is selected. Individual elements of a symbol canalso be selected, such as the component value and reference designator. To select these, left-click on the desired text orgraphic element.

Holding the Shift key while selecting allows multiple components to be selected or de-selected.

Components can be replaced by right-clicking on them then selecting Replace Component(s) from the right-clickmenu. Users can then select the replacement components from the newly opened component browser. Multisim will connect the newcomponent to the same nets as the original component.

Wiring

Multisim provides modeless operation—the action performed by the mouse cursor is dependent on the cursor’s location. There is no need to select a tool, or mode when workingwith Multisim. The cursor will change depending on what object is underneath it. describes the different icons that the mouse cursorwill display.

When the cursor is over a pin or terminal of a component, that component can easily be wired by left-clicking.When the cursor is over an existing wire and near a pin or terminal the net can easily be re-wired.

Left-click on the terminal to begin wiring, and to finish the wire, left-click on the destinationterminal.

When a wire is placed, Multisim will automatically assign it a net number. Net numbers increasesequentially, beginning with 1. Ground nets are always numbered 0—a requirement of the underlying SPICE simulator. To change a net number, or assign it a logical name instead, simply double-click onthe wire.

Modeless Mouse Cursors
Naming Nets

Autowiring by touching pins

Multisim also allows auto-connection of pins to wires, and pins to pins. To automatically connect a component toexisting nets or pins, simply place that component so that its pins are touching an existing net or pin.

Autowiring by Touching Pins

Autoconnect passives

Multisim provides the ability to place a component in-line with an existing wire or set of wires. Toautomatically split an existing wire around a component, simply place that component in-line with the wire (Figure 6).

Autoconnect Passives

Questions & Answers

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Introduction to multisim schematic capture and spice simulation. OpenStax CNX. Sep 26, 2006 Download for free at http://cnx.org/content/col10369/1.3
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