Design And Construction Of A Sawtooth Waveform Generator Circuit

Description

 

ABSTRACT

A waveform is a shape that represents changes in amplitude with respect to time. A periodic waveform includes sine wave, square wave, triangular wave, sawtooth wave. On the x-axis, it indicates the time and on y-axis it indicates amplitude. Many people frequently get confused between triangular wave and a sawtooth wave. The sawtooth wave generator is a one kind of linear, non sinusoidal waveform, and the shape of this waveform is a triangular shape in which the fall time and rise time are different. The sawtooth waveform can also be named an asymmetric triangular wave.

In this work, a sawtooth wave generator was constructed using transistor and a simple 555 timer IC. The circuit consists of a transistor, a capacitor, a Zener diode, resistors from a constant current source that are used to charge the capacitor. Initially, let us assume that the capacitor is fully discharged. The voltage across the capacitor is zero and the 555’s output is high because of the internal comparators connected to the pin 2 as shown in the chapter three of this work

TABLE OF CONTENTS

TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENT

CHAPTER ONE

1.0      INTRODUCTION

1.1      BACKGROUND OF THE PROJECT
1.2      AIM OF THE PROJECT
1.3      OBJECTIVE OF THE PROJECT
1.4      SIGNIFICANCE OF THE PROJECT
1.5      PURPOSE OF THE PROJECT
1.6      APPLICATION OF THE PROJECT
1.7      ADVANTAGES OF THE PROJECT
1.8      PROBLEM/LIMITATION OF THE PROJECT
1.9      PROJECT ORGANISATION

CHAPTER TWO

2.0     LITERATURE REVIEW

2.1      REVIEW OF RELATED STUDIES

2.2      REVIEW OF RELATED TERMS

2.3      OVERVIEW OF SAWTOOTH WAVEFORM

2.4      DIFFERENT TYPES OF WAVEFORM

CHAPTER THREE

3.0     CONSTRUCTION METHODOLOGY

3.1      SYSTEM CIRCUIT DIAGRAM

3.2     SYSTEM OPERATION

3.3      CIRCUIT DESCRIPTION

3.4      SYSTEM CIRCUIT DIAGRAM

3.5      CIRCUIT OPERATION

3.6      IMPORTANCE AND FUNCTION OF THE MAJOR COMPONENTS USED IN THIS CIRCUIT

3.7      POWER SUPPLY UNIT

CHAPTER FOUR

RESULT ANALYSIS

4.0      CONSTRUCTION PROCEDURE AND TESTING

4.1      CASING AND PACKAGING

4.2      ASSEMBLING OF SECTIONS

4.3      TESTING

4.4.1 PRE-IMPLEMENTATION TESTING

4.4.2  POST-IMPLEMENTATION TESTING

4.5      RESULT

4.6      COST ANALYSIS

4.7      PROBLEM ENCOUNTERED

CHAPTER FIVE

5.1      CONCLUSION

5.2      RECOMMENDATION

5.3      REFERENCES