This module provides an exercise with step by step instructions for drawing a schematic 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.
Exercise: drawing a schematic in multisim
Approximate time to complete: 20 minutes.
This exercise provides a general introduction
to Multisim’s schematic capture. You will build and wire a basic
circuit in Multisim using a variety of means to access parts,experiment with the wiring and run a basic simulation.
Objectives
Understand the difference between real, virtual, ideal, and
interactive parts.
Build and wire a basic circuit (including virtual
wiring).
Become familiar with and set wiring options.
Procedure
Build your own version of circuit 40kFILTER1_Complete.ms9 as
pictured below. Select the required components from the MasterDatabase (Place/Component) and the In-Use List. Set component
values as identified below. Note: Components R1, R2 and C2 are allvirtual parts.
To wire your circuit, point at a component terminal so that
you see the cursor changes to crosshairs and left-click. Move thepointer (while dragging the wire) to the second component terminal
and left-click to terminate.
Using the Replace function by right clicking on the R2,
choose Replace Component(s) and substitute the virtual resistor(R2) with a real resistor (Basic/Resistor) of your choice.
Double-click on the virtual components to see how they can be
used to set variable parameters.
Rotate and move a component within the circuit to see how
movement of components affects the wiring. Components can also berotated while being placed from the database.
Select the virtual capacitor from the In-Use List and place
it between Points A and B in the circuit. Notice the how it isautomatically connected, and has a capacitance of 270 pF.
Receive real-time job alerts and never miss the right job again
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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