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DESIGN AND CONSTRUCTION OF A STEREO LEVEL INDICATOR

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APPROVAL PAGE

This is to certify that the research work, "design and construction of a stereo level indicator" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering has been approved.

By
Engr. ---                                                     Engr. ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

……………………………….
 Engr. ---
External Invigilator


DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.

ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.


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ABSTRACT

Usually, some amplifier does not come with audio level indicator such as a low-priced home stereo power amplifiers. An output power level indicator can be added to each channel of these stereo power amplifiers. This work is on a very simple, low-cost stereo-level indicator circuit for home power amplifiers with power rating of around 0.5W. The circuit is built around two LM3915 dot/bar display driver ICs (IC1 and IC2). LM3915 senses analogue voltage levels to drive ten LEDs, providing a logarithmic 3dB/step analogue display.

TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT

CHAPTER ONE
1.0      INTRODUCTION
1.1      AIM OF THE PROJECT
1.2      OBJECTIVE OF THE PROJECT
1.3     APPLICATION OF THE PROJECT
1.4      PURPOSE OF THE PROJECT
1.5      SIGNIFICANCE OF THE PROJECT
1.6      LIMITATION OF THE PROJECT

CHAPTER TWO
2.0     LITERATURE REVIEW
2.1      HISTORICAL BACKGROUND OF AN AMPLIFIER
2.2     REVIEW OF CLASSIFICATION OF POWER AMPLIFIERS
2.3      OVERVIEW OF DOT/BAR DISPLAY

CHAPTER THREE
3.0     CONSTRUCTION METHODOLOGY
3.1      BLOCK DIAGRAM
3.2      CIRCUIT DIAGRAM
3.3      CIRCUIT OPERATION
3.4     CIRCUIT DESCRIPTION
3.5     POWER SUPPLY CIRCUIT
3.6      PARTS LIST OF THE CIRCUIT
3.7      DESCRIPTION OF COMPONENTS USED

CHAPTER FOUR
RESULT ANALYSIS
4.0      CONSTRUCTION PROCEDURE AND TESTING
4.1      CASING AND PACKAGING
4.2      ASSEMBLING OF SECTIONS
4.3      TESTING OF SYSTEM OPERATION
4.4      COST ANALYSIS

CHAPTER FIVE     
5.1      CONCLUSION
5.2      RECOMMENDATION
5.3      REFERENCES

 


CHAPTER ONE: The complete chapter one of this work is available. Order full work to download. Chapter one of this work is on the introduction to this study. In this chapter, the background, significance, scope, objective, the need (benefit), limitation and problem, advantages of this work was discussed.

CHAPTER TWO: The complete chapter two of “design and construction of a stereo level indicator” is available. Order full work to download. Chapter two of “design and construction of a stereo level indicator” consists of the literature review. In this chapter all the related work on “design and construction of a stereo level indicator” was reviewed.

CHAPTER THREE: The complete chapter three of “design and construction of a stereo level indicator” is available. Order full work to download. Chapter three of “design and construction of a stereo level indicator” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

CHAPTER FOUR: The complete chapter four of “design and construction of a stereo level indicator” is available. Order full work to download. Chapter four of “design and construction of a stereo level indicator” consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of design and construction of a “design and construction of a stereo level indicator” is available. Order full work to download. Chapter five of “design and construction of a stereo level indicator” consist of conclusion, recommendation and references.



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