PSpice By Jirawat Kanjanapitak (Tae). Introduction Created by Cadence TM Benefits of PSpice Be able...
Transcript of PSpice By Jirawat Kanjanapitak (Tae). Introduction Created by Cadence TM Benefits of PSpice Be able...
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PSpice
By Jirawat Kanjanapitak (Tae)
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Introduction
Created by CadenceTM Benefits of PSpice
Be able to solve difficult circuits Save time & easy to use Test schematic before construct a circuit
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How to Start
Go to Start All Programs Orcad Family Release PSpice Student Schematics
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Choosing the Components
Go to Draw Get New Part.. Shortcut : Ctrl G Type in the Name
Ex. Type “R” Choose “Place”
Or “Place & Close”
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How to Draw
Choose and place all the components that you need. (Ground = GND_EARTH, Voltage Source = VDC) Tips: To flip – Ctrl P , to rotate – Ctrl R
Connect them with a “Draw Wire” option. Shortcut : Ctrl W
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Specify the Values
Double click on each components
Ex. Change VDC to 5V, R1 to 2k ohms, and R2 to 3k ohms
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Simulation
Click “Simulate” Click “V” and “I”
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Example
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Calculation Simplify the circuitR4||R3 = 2*4/(2+4) = 4/3 Ohms Assign I1, I2, and I3 current Set up equations:
0 = 5I1 + 2I2 – 10 ---1)
0 = 3I3 – 2I2 + (4/3)I3 + 20 ---2)
I1 = I3 + I2 ---3) Solve all three
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Results
Ans. I1 = 0.58A.
I2 = 3.55A.
I3 = -2.98A.
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Result from PSpice
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Questions