# CT212-Week-1-LabA - Lab 1A Introduction to Multisim for...

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Lab 1A: Introduction to Multisim for Digital CircuitsGrantham University
Introduction:Electronic circuits consist of two general classes. The first class, called analog circuits arecircuits in which electrical quantities can have any value over a range. The second class, calleddigital circuits are circuits in which electrical quantities can have only specific values. Toillustrate the concepts of analog and digital, compare using a dimmer switch and toggle switch tocontrol the lights in a room. A dimmer switch represents analog control, as it allows you to adjustthe brightness of the lights to whatever level you wish. A toggle switch represents digital control,as it allows you to set the lights to only two specific states: on or off. In this experiment, we will familiarize our self with the Multisim tools for observing digitalcircuits. Describing the common Multisim instruments and components associated with digitalcircuits. We will use the logic probes to examine the operation of some digital circuits. Use thelogic analyzer to observe multiple logic signals simultaneously. Equipment/Components: Multisim FilesDigital_Exp_01Procedure: Digital Measurements in Multisim1a.7 Using Probes 1) Open the file Digital_Exp_01.2) Select the Place Indicator tool on the Component Toolbar. This will open the component browser with the indicator components3) Select “Probe” from the Family: window.4) Select “PROBE_DIG_RED” from the Component: list.5) Click the OK button and place the probe above Q0junction.6) Connect the probe X1to Q0. Note that the junction for Q0disappears when you do so.7) Connect a “PROBE_DIG_GREEN” to Q1.8) Connect a “PROBE_DIG_BLUE” to Q2. 9) Start the simulation.10) Press the space bar to close switch J1. This connects the 10 Hz clock signal to the circuit.