ECAD DEE30071

ELECTRONIC COMPUTER AIDED DESIGN

FIRST EDITION

PROTEUS VSM

ELECTRONIC COMPUTER AIDED DESIGN

Published in Malaysia.
First Printing, 2021

eISBN : 978-967-2904-16-8

All rights reserved. No part of this publication may be reproduced, distributed,
or transmitted in any form or by any means, including photocopying, recording,
or other electronic or mechanical methods, without the prior written permission

of the publisher, except in the case of brief quotations embodied in critical
reviews and certain other non-commercial uses permitted by copyright law. For
permission requests, write to the publisher, addressed “ Attention: Permissions

Coordinator,” at the address below.

Published by:
Jabatan Kejuruteraan Elektrik

Politeknik Mersing Johor,
Jalan Nitar,

86800 Mersing
Johor Darul Ta'zim

Malaysia

Tel : 07-798 0001
Faks : 07-798 0002
Laman Web : http://www.pmj.edu.my

Authors and Editorial : Nazid bin Sarji, Mohamad Zamri bin Jamil
Graphic Cover designer: Nazid bin Sarji

Copyright ©2021

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ELECTRONIC COMPUTER AIDED DESIGN

Table of contents

Electronic Computer Aided Design

No Chap ter T itle P ages
1
1 Chap ter 1 Intro duction to Electronic Circuit Simulation and
So ftware Packages 2
1.0 Concept and fundamentals of electronic circuit
simulation 4
1.1 Development of simulation packages 6
7
1.2 Types Of Simulation Circuits
8
1.3 Simulation methods level; Circuit level, Logic level, 12
System level 13-14
15
1.4 Types Of Simulation Analyses
18
REVIEWS QUESTION
25
ANSWERS QUESTION 30
33
2 Chap ter 2 Electronic Circuit Simulation Package : Proteus
VSM 34
2.1 Introduction To Basics Of Schematic Capture 35
36
Simulation 37
2.3 Starting Proteus VSM Schematic Capture 38
39
2.4 Getting To Know The Toolbar 40
41
2.5 Browsing The Devices ( Pick Devices And Devices 42
Libraries)
43
2.6 Placing Parts On Schematic Sheet 43-53

2.7 Moving And Changing The Position Of The Parts 54-58

2.8 Editing The Attributes And Text In Schematic

2.10 Wiring-Up The Components

2.11 Saving The Schematic Circuit Capture

REVIEW QUESTIONS

3 Chap ter 3 Simulation of Analogue Circuits
Analo g System 1 ( DC Analysis)

3.1 Simulation Of Analogue Circuits ( DC Analysis )
3.1.1 Dc So urce
3.1.2 Dc Source Simulation In Proteus VSM

Lesson 3.1 : Series –Parallel Circuit Using Proteus
VSM

Lesson 3.2: Comman Emitter Amplifier Circuit Using
Proteus VSM

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ELECTRONIC COMPUTER AIDED DESIGN 59-63

Lesson 3.3 : Diode Characteristic Circuit Using Proteus 64-70
VSM
71
Lesson 3.4 : CE Input Output Characterictic Using 73
Transfer Function Proteus VSM 74-80

Analo g System 2 ( Transient Analysis) 81-90
91
3.2.1 Transient So urce 92

Lesson 3.5 : Time Domain (Transient) Simulation In 93-99
Proteus VSM 100-105

Lesson 3.6 : 12V DC Power Supply Circuit simulation 106-112

Analo g System 3 (AC Analysis) 113
114
3.3 .1 AC Source 114-122
123-129
Lesson 3.7 : 12V DC Power Supply Circuit simulation 130-136

Lesson 3.8 :Inverting Amplifier Design And Frequency 137-140
Response
141-146
Lesson 3.9 : Transistor Biased Analysis Using Proteus
VSM 147-150
151
4 Chap ter 4 Simulatio n o f Digital L o gic Circuits
152-154
4.1 Introduction To Simulation Of Digital Circuits 155
156
Lesson 4.1: Combinational Logic Gate Circuit
156-176
Lesson 4.2: Half Adder Circuit 177-194

Lesson 4.3: Full Adder Circuit- Using Sub Circuit 195
Mode 196

Lesson 4.4 : 4-2 Encoder Circuit- Using Sub Circuit
Mode

Lesson 4.5 : 2 – 4 Decoder Circuit- Using Sub Circuit
Mode

Lesson 4.6 : 4-1 Multiplexer Circuit

REVIEW QUESTIONS

ANSWERS QUESTIONS

5 Chap ter 5 Printed Circuit Bo ard (PCB) L ayo ut Design

5.1 Introducing to PCB design.

Lesson 5.1 : 555 Timer LED Flasher Schematic Circuit

Lesson 5.2 : 12V DC Power Supply Schematic Circuit

SELF-ASSESSMENT

GLOSSARY

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ELECTRONIC COMPUTER AIDED DESIGN

ELECTRONIC COMPUTER AIDED DESIGN covers the basic concept and
fundamentals of electronic circuit simulation. It also covers the applications of
electronic packages for electronic circuit simulation at the circuit level and the
logic level. Emphasis is given to the simulation for analogue, digital logic and
mixed signal circuits using various types of simulation analysis. Printed Circuit
Board (PCB) layout is then produced for the circuits. The simulation and the PCB
layout are done using electronic software package such as Proteus VSM.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

CHAPTER 1
INTRODUCTION TO ELECTRONIC CIRCUIT SIMULATION

AND SOFTWARE PACKAGES

In This chapter, you‘ll learn more about:

 Explain the importance of electronic computer aided design
package in electronic circuit simulation.

 Explain the design and simulation process.
 List and explain simulation methods.
 List and explain types of simulation circuits.
 State the types of simulation analysis.
 State the advantages of simulation process.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

INPUT

1.0 Concept and fundamentals of electronic circuit simulation

Figure1.1: To predict the circuit or system characteristic after
manufacturing

1.0.1 Introduction to circuit simulation
W hat is circuit simulation?

 Circuit simulation is a process of imitating the behaviour of electronic
components put together in a circuit or a project.This behaviour imitating
is done using a specific electronic circuit simulation package.

Figure 1.2 : Circuit Design Background

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

1.0.2 Significance of electronic simulation
W hy do we need to simulate circuit ?

 Simulation helps you to test your designs or circuits before you build
them. It is used to verify the operation of the circuit you designed. Once
you have completed a design by hand calculation, you would use
simulation software to simulate the circuit to see if your hand calculation
match simulation results. If your calculations match or come close to the
simulation results, it is highly probable that your design will work when
tested in the laboratory. If your simulations do not match your
calculations, then either your calculations or your simulations are in error.
It is almost guaranteed that your circuit will not work in that lab.

 A simulation is not used to figure out how a circuit works. It is important
to know the theory of your design before you simulate.

 In the verification process, results generated by the simulation package
will give information about the designed circuit. The outputs coul d be in
the form of :
 Circuit outputs : voltage distribution, current flow, waveforms,
frequency response curve, switching speed in digital circuits.
 Circuit operation sensitivity towards change in other component
value s.
 Change in circuit characteristics due to temperature change.
 Circuit elements parameters could be modify for optimum
ope ration.

1.0.3 State simulation packages available in the market

W hat tools to use in simulation?
Simulation of electronic circuit is made possible by using any electronic
circuit simulation package or software which is available in the market.
The softwares difference in simulation efficiency and cost of the softwares.
Examples of such softwares are :

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

Figure 1.3 : Tools to use in simulation

1.0.4 State cost of simulation package to its efficiency.
Pricing for construction training simulators varies based on features and
objectives, but in general ranges from RM1000 to RM30,000 or more. As
a digital technology, simulation-based training is flexible, fitting into many
budgets at an investment point that's lower than most pieces of
construction equipment

1.1 Development of simulation packages

1.1.1 Design And Simulation Process
The flow in design and simulation process of a project is as below:
 Identify project
A project or circuit to be designed is identified.
 Design / redesign project
The project/circuit is designed based on theory.
 Simulation
The project designed is simulated using software package to
produce results/outputs of the project operation. Failure to achieve
results to satisfaction will cause the project to be redesigned and
re simulate d.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

 Testing
Project that yields satisfactory simulation results will be
constructed in the laboratory to see whether the project actually
works as in simulation.

 PCB Design Layout
The printed project/circuit board layout is designed and produced.

 Prototype
An actual working model of the project is constructed.

1.1.2 Process flow of design and simulation in a project with an illustration

Start

Project Identification

Design / redesign project

Simulation

Testing

PCB Design Layout

Prototype
End

Figure 1.4 : Process flow of design and simulation in a project

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

1.2 Types Of Simulation Circuits
There are four types of simulation circuits.

Figure 1.5: Types Of Simulation Circuits
i. Analog Circuit : Circuit that consists of passive and/or active

analog components.
ii. Digital Circuit: Circuit that consists of digital components

such as logic gates and digital devices.
iii. Mixed-signal circuit: Circuit that combines analog and

digital components.
iv. Integrated Circuit (IC): The internal circuit of an IC. The internal

circuit consists of transistors which are
constructed from n and p material of a
se miconductor.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

1.3 Simulation methods level; Circuit level, Logic level, System level

Figure 1.6: Simulation methods level
There are three methods of simulation.
i. Circuit level

An analog circuit is simulated and results i.e. voltage drop, current
flow, noise, impedance in the circuit are obtained.
ii. Logic level
A digital circuit is simulated and the logic level of the inputs and
outputs are obtained.
iii. System level
Used mainly to dete rmine the characteristics of a system i.e. the
design of a telecommunication network. Characteristics such as
losses due to the cabling and the quality of transmitted and
recepted signals between two distant locations can be determined.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

1.4 Types Of Simulation Analyses

Figure 1.7: Types Of Simulation Analyses
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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

There are four types of analysis used in simulation process that will be
covered in this module. Each analysis has its own setup format and its
own purpose. The analyses are: DC Analysis, Transient Analysis, AC
Analysis and Fourier Analysis.
There are other type of analysis which will not be discussed due to their
complicated application and also beyond the scope of the syllabus for this
book.
i. DC Analyses:
In this chapter, you will learn about DC sources, DC analysis and their
se tup.
To run dc analysis, the circuit to be simulated has to have dc source. A
dc source generates dc voltage or dc current for the circuit to operate. No
dc analysis can be done to a circuit without a dc source connected to it.
 DC Source:
A dc source is a source that generates dc voltage or dc current. For each
of the sources, there are the dependent type and the independent type.

a) Independent dc source
An independent dc source generates voltage or current by itself and
does not depend on other elements in the circuit.

b) Dependent dc source
There are four types of dependent dc sources as listed below.
VCVS - Voltage Controlled Voltage Source
A voltage source that is dependent on the voltage of other
e le me nts.
CCVS – Current Controlled Voltage Source
A voltage source that is dependent on the voltage of other
e le me nts.
VCCS – Voltage Controlled Current Source
A current source that is dependent on the voltage of other
e le me nts.
CCCS – Current Controlled Current Source
A current source that is dependent on the voltage of other
e le me nts.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

ii. Transient Analysis:
The Transient Analysis is used to look at waveforms versus time.
Waveforms are displayed as you see them on an oscilloscope screen. The
analysis must be set for time-based calculations, so that we can know how
the waveform changes with time. Transient analysis is used in simulating
circuits such as rectifiers, amplifiers, clippers, etc.
In this chapter, you will learn about transient sources, transient analysis
and their setup. To run transient analysis, the circuit to be simulated has to
have transient source.

 Transient Source:
The Transient Analysis uses voltage and current sources that are
functions of time. The sources below are meant to be used with the
transient analysis:

 Sinusoidal waveform voltage or current source.
 Pulse waveform – can be used to create a square wave.
 Piece-Wise-Linear voltage or current source – can create any arbitrary

waveform that is made of straight lines such as triangular or sawtooth
wave .
iii. AC Analysis:
In this chapter, you will learn about frequency variation analysis and
simulation. These include AC sources, AC analysis and their setup.
To run ac analysis, the circuit to be simulated has to have ac source. No
ac analysis can be done to a circuit without an ac source connected to it.
AC analysis produces frequency response curve for a given circuit.
 Ac Source:
 An ac source generates sinusoidal waveforms at several frequencies

but having the same magnitude and phase.
 Attributes of an ac source is as follows :

i. PKGREF : designator of the ac source
ii. ACMAG : magnitude of the ac source.
iii. ACPHASE : phase of the ac source.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

iv. Fourier Analysis:
Harmonic distortion is most often caused by nonlinear circuit elements,
such as diodes and transistors. When harmonic distortion is great
enough, it is visible in the time domain; however it is best to analyze it in
the frequency domain. This is easily done in Proteus using Fourier
analysis. By simulating circuits and performing a Fourier analysis,
Proteus can convert a signal from the time domain to the frequency
domain.

1.5 Advantages and disadvantages of simulation process

From the selection of the components forward, you could have chosen another
path. You could have simulated your circuit in a circuit simulation software. This
has several advantages:

 It is much faster to build the circuit in the simulator than in real life
 If it does not work at first, no harm done. It is easy to adjust and improve.
 You can access any node in the circuit with a click of the mouse, which

makes debugging much faster.
 You can try components that you do not physically have.
 Able to detect circuit problems before testing in the laboratory.
 Enhances the design and redesign of electronic circuit. This is because

circuit fabrication is not required and parts/components are easily
changed. The performance of a circuit can be determined before the actual
construction of the circuit. The circuit can be altered and redesigned
repeatedly until it yields satisfactory outputs to the circuit designer.
 Reduces the cost and time spent in project design.
It has however the following disadvantages:

 If it works, you still have to build the real circuit
 It does not simulate the components with complete accuracy. There is

always some differences between the simulation and the reality.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

That being said, circuit simulators are ever more accurate and are an
indispensable tool for electronic engineers. They reduce development time and
cost.

REVIEW QUESTIONS :

Question 1.1
Fill in the boxes in the flow-chart below for the design and simulation process of
a project.

Question 1.2
State four electronic circuit simulation softwares available at present.
i. ...............................................
ii................................................
iii...............................................
iv...............................................
Question 1.3
Describe the importance of electronic computer aided design package in
electronic circuit simulation.
Question 1.4
Describe the importance of simulation in a circuit design process.

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

ANSW ERS QUESTION :

Answer 1.1
Identify project

Design/redesign project

Simulation

Testing

PCB Design Layout
Prototype

Answer 1.2
i. Proteus VSM
ii. Pspice
iii.Circuit Maker
iv.OrCAD

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Introduction to Electronic Circuit Simulation and Software Packages CHAPTER 1

Answer 1.3
Computer aided design package in electronic circuit simulation can
eliminate the tedious work involved in calculating circuit characteristics
by hand. With the help of CAD package, we can turn over the routine
calculations to a machine. Moreover, the use of CAD softwares can make
principles of electronics more clear and easier to learn. It also can display
non-linear effects that cannot be calculated by hand. CAD softwares can
run the simulation repeatedly if some changes have been made to the
circuit in a fast speed and this can reduce the time spend in analyzing the
circuit.

Answer 1.4
Simulation helps to test a designed circuit. It is used to verify the design.
Once a design by hand calculation has been completed, simulation
software is used to simulate the circuit to see whether the hand calculation
match the simulation results. If the calculations match or come close to
the simulation results, it is highly probable that the design will work when
tested in the laboratory. A simulation is not used to figure out how a circuit
works. It only can detect circuit problems before testing in the laboratory.
or
Simulation process enhances the design and redesign of electronic circuit.
This is because the real circuit fabrication is not requir ed and
parts/components are easily changed. The performance of a circuit can be
determined before the actual construction of the circuit. The circuit can
be altered and redesigned repeatedly until it yields satisfactory outputs to
the circuit designer. Thus, simulation can reduces the cost and time spent
in a project design.

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

CHAPTER 2
ELECTRONIC CIRCUIT SIMULATION PACKAGE :

PROTEUS VSM

In This chapter, you‘ll learn more about:
 Remember the concept of electronic circuit simulation
and the applications of electronic simulation packages
(Proteus VSM).
 Generate the schematics circuit using electronic
simulation package (Proteus VSM).

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

INPUT

2.0 Electronic Circuit Simulation Package : Proteus VSM

PROTEUS VSM

2.1 Introduction To Basics Of Schematic Capture Simulation
In this chapter, you will use schematic capture method. This means
simulating schematic circuits which are drawn graphically. Drawing and
simulating using schematic capture is of course much more easier for you.
It will easier for you to grasp the concept of schematic capture simulation
if you have little knowledge about netlist and its contents.

2.1.1 Source Element
The sources functions to supply the circuit with power supply or input
waveforms. There are three different types of sources used in simulat ion.

 DC Source
A source that generates dc voltage and dc current.
There are two types of dc sources – dependent source,
independent source.

 AC Source
A source that generates sinusoidal waveforms at
different frequencies with the same magnitude.

 Transient Source
A source that generates waveform whose amplitude
changes with time. Examples of transient sources are :
sine waveform, pulse waveform, polynomial waveform
and exponential waveform.

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.1.2 Passive Device Elements
Passive elements are electronic passive components such
as resistor, capacitor, inductor and transformer.

2.1.3 Active Device Elements
Active device elements are electronic components made of
semiconductor material. Examples are diod, bipolar
transistor (BJT), Field-Effect transistor (FET), Integrated
Circuits (ICs)

2.2 Features and capabilities of the Proteus VSM

Proteus VSM :

From Lab center Electronics, Proteus combines powerful features with
ease of use to help electronics engineers design, test, and lay out
professional PCBs incredibly quickly and easily. Proteus is intuitive and
includes a world-class shape-based auto router, making it a complete
software design tool for modern engineers.
Key Features:
 Nearly 800 microcontroller variants ready for simulation right from the
sche matic
 Professional PCB layout package
 Combines schematic capture and ARES PCB layout programs to be a
powerful, integrated suite of tools for professional PCB design
 Complete functionality yet featuring a simple, clean user interface and
tight integration with schematic design
 Design capacity scales with the product range, which allows electronics
engineers to choose the Proteus product right for you

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.3 Starting Proteus VSM Schematic Capture
In order to simulate an electronic circuit using a simulation package, a
circuit needs to be drawn and labelled carefully. The simulation software
is unable to do the simulation if there are mistakes in the drawing and
therefore we cannot obtain the genuine output of the circuit.
Start by selecting the following instructions or by clicking the menus as
shown in the illustration below.

2.3.1 Steps to use Proteus VSM Schematic Capture
Show execution of the simulation Pretous VSM
Step 1:
Start\All programs\proteus 8 profesional

1

Figure 2.1: Starting Proteus Schematic Capture
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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2
3

Figure 2.2 : Home Page

Example:
 New Project\Project Name\Name\Litar 1\ Next\ templates \Next

Step 2:
Open Proteus Schematic (ISIS) create a new project, name it as ‘Litar 1’ (example)
and save it in your desired path and folder, click next.

1
2

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

3

4

Step 3:
Select Create a schematic from the selected template or any any suitable template
and click next.

Example :
 Show steps to set paper size ( A4 or DEFAULT) and schematic file

background display

1
2

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Step 4:
Select Do not create a PCB layout and click Next

1

2
3

4

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Step 5:
Confirm your project and click Finish.

1
2

Figure 2.3 : Proteus VSM Schematic Capture ( A4 template )
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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Step 6:
Select Schematic Capture and pick needed part from component library

1

Step 7:
Construct the circuit as shown in figure below.
EXAMPLE:

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Step 8:
Save /Save As in your desired folder for next project.

1

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.4 Getting To Know The Toolbar
Using the toolbar icons is faster than using the fly down menus. You need
to know some very important tool icons which would assist you in drawing
schematic and in simulation setup. Below are some of the icons on the
main menu that you will tend to use a lot.

Sche m atic PCB 3D De si gn
Capture Layout Vi sualize Explore r
r

Figure 2.3.1 : Proteus VSM Schematic Capture ( A4 template )
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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Selection Mode
Compone nt
Mode

Terminal Mode
Graph Mode

Generator Mode
Probe Mode

Instrument Mode

Figure 2.4: Component Mode

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Figure 2.5: Generator Mode (AC Supply)
Figure 2.6 : Generator Mode (DC supply)

Figure 2.7 : Instrument Mode

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Figure 2.8 : Graphs Mode

Figure 2.9 : Terminal Mode

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Figure 3.0 : Probe Mode

Run the Stop the
si m ulati on si m ulati on

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.5 Browsing The Devices ( Pick Devices And Devices Libraries)

Components are called “ Devices ” in Proteus Schematic Capture. All
devices are kept in ‘libraries’. You have to browse a library to get a
particular devices as needed in the circuit. The term “devices” will be used
from now onwards.

 Click on components mode and get new devices.
 Click on P ( pick devices)

1

2

 Click Component Mode and the part graphic Device will be previewed.

 Click ‘ P ’ and the library browser will appear( Pick Devices) . Select All
Categories. Each library will have its own list of devices

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

( Example 1 : ‘Capacitor’)

Type Component devices,
example: ‘ capacitor ’ or

click ‘Category’

( Example 2 : ‘Resistor’)

 Type keywords list of parts or device .Example Keyword ‘Resistors’ and
double click mouse

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

 Type keywords list of parts or device .Example Keyword ‘Resistors’ and
click ok

( Example 3 : ‘DC source’).

 Type keywords list of parts or device .Example Keyword ‘DC
source/Vsourse ’ and double click mouse

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.6 Placing Parts On Schematic Sheet Blank
sche m atic
1 page

2

After you have chosen the right part( List Devices) , place the graphic on
the blank schematic page.

 Move the graphic to a place where you want to put the part. This is
done by first highlighting the part and then click and drag the part
to the new intended location on blank schematic page.

 Place it twice on the blank sheet as shown below.

 The resistors will be designated automatically as R1 and R2 with
default value of 1k ohm.

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2.7 Moving And Changing The Position Of The Parts

 Move the graphic to a place where you want to put the part. This is done
by first highlighting the part and then click and drag the part to the new
intended location.

 The graphic can also be rotated so that it can be vertically or horizontally
oriented. To rotate a graphic 90 degrees, right clik mouse once and a
rotated graphic symbol is displayed. Click Rotate Clockwis a few times
will cause the graphic to rotate a few times also.

 If you have done mistakes in choosing or placing the parts, you also can
delete that unwanted part by first highlighting that part and then press
the delete key.

right clik
mouse

Step 1

1

2

Step 2

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Step 3

2.8 Editing The Attributes And Text In Schematic

 The parts that you placed on the schematic page need to be edited so that
the values and attributes are the same as the real circuit

 Double click on the text or attribute to be edited and key in the new values
as shown below.

Double
click

1

Step 1

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2

Double
click

Step 2

Step 3
2.9 W iring-Up The Components

Each part on the schematic page needs to be wired-up to form a complete
circuit.
 To place a wire, click draw and wire. You can also click on the pencil
icon of the tool bar. A pencil graphic will appear on screen.

1
drag

 To drag a mouse cursor between two parts, click the pencil once at at
one end of a part and drag the pencil to the other end of another part.

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

 Pressing esc key once makes the pencil disappear but pressing the space
bar after the esc key will make the pencil reappear.

2

3

Figure 3.1 : Complete circuit connection
2.10 Grounding The Circuit And Labelling The Nodes

To run the circuit, you must have at least one ground connection in your
circuit.
 To place a ground connection, click Terminal Mode and then get new part.
 Place the part called a Gnd connected to the circuit.

1

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

2

3

2.11 Saving The Schematic Circuit Capture
After you have finished the schematic, you need to save it before running
simulation.

 Click “file” on main menu and “ save” or “save as”. (Proteus Project
(.pdsprj)

 When the file is saved correctly the name of the circuit file is displayed at
the top of the schematic as shown below.

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2.0 Electronic Circuit Simulation Package : Proteus VSM CHAPTER 2

Saved file name

REVIEW QUESTIONS :

Do the following exercise:
Draw the circuit below using a schematic simulation package.

R1 L1

1k 100nH

V1 R2

10V 10k

Gnd

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

`

CHAPTER 3
SIMULATION OF ANALOGUE CIRCUITS

In This chapter, you‘ll learn more about:
 To analyze and simulate DC circuit.
 To simulate Transient analysis circuit.
 To analyze and simulate AC circuit.
 Explain AC analysis and AC sources.
 Do the AC analysis setup.
 Simulate and display the simulation result for AC
analysis.

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

Analog System 1
DC Analysis

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

INPUT

3.1 Simulation Of Analogue Circuits ( DC Analysis )

3.1.1 Dc Source
Dc source is energy source that capable of delivering a constant voltage across
a load.

DC

Figure 3.1 : Dc Source Symbol

RA
RB

Figure 3.2 : Series-Parallel Circuit
Transistor (Command Emitter)

=


= +

Figure 3.3 : Comman Emitter Amplifier Cicuit

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

3.1.2 Dc Source Simulation In Proteus VSM
Lesson 3.1

Title Series –Parallel Circuit Using Proteus VSM

Step 1:
Open Proteus Schematic (ISIS) create New Project, fill your project name and path
to save it your desired path and folder , click Next.
Starting or setup Proteus Vsm Schematic Capture:

Step 2:
Select Create a schematic from the selected template and click Next

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

Step 3 :
Select Do not create a PCB layout from the from the selected template and click
Ne xt.

Step 4 :
Continue to click Next until Firmware Wizard, select No Firmware Project and
click Next.

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3.0 Simulation of Analogue Circuits / Analogue System CHAPTER 3

Step 5:
Check your project summary and click finish.
Before you start drawing a schematic diagram using the simulation software, you
have to have a blank schematic capture sheet and a blank schematic capture
page is shown below.

Figure 3.5 : Blank schematic capture page

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