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Design and construction of 45w audio power amplifier

 

Table Of Contents


<p> </p><p>&nbsp;TITLE PAGE</p><p>APPROVAL PAGE</p><p>DEDICATION</p><p>ACKNOWLEDGEMENT</p><p>ABSTRACT</p><p>TABLE OF CONTENT</p><p><b>

Chapter ONE

</b></p><p>1.1 INTRODUCTION</p><p>1.2 STORAGE BATTERY/METHOD OF CHARGING</p><p><b>

Chapter TWO

</b></p><p>COMPONENT OF THE POWER</p><p>SUPPLY UNIT</p><p>THE RECTIFYING UNIT</p><p>THE SMOOTHING UNIT</p><p>THE REGULATOR AND REGULATED</p><p>D.C CHARGING UNIT</p><p><b>

Chapter THREE

</b></p><p><b>CIRCUIT DESIGN/DIAGRAMS </b></p><p>3.1 THE CASING</p><p>3.2 FULL WAVE RECTIFICATION (POSITIVE HALF WAVE)</p><p>3.3 THE BRIDGE RECTIFICATION</p><p>3.4 THE BLOCK DIAGRAM</p><p>3.5 THE CIRCUIT DIAGRAM </p><p>3.6 THE CONSTRUCTION</p><p><b>

Chapter FOUR

</b></p><p><b>TESTS AND OPERATIONS</b></p><p>4.1 BATTERY CHARGING</p><p>4.2 DIAGRAM OF CHARGING AND DISCHARGING CURVES</p><p>4.3 INDICATION F FULLY CHARGED BATTERY</p><p>

Chapter FIVE

</p><p>5.1 SUMMARY</p><p>5.2 CONSTRAINTS</p><p>5.3 CONCLUSIONS/SUGGESTIONS</p><p>5.4 COST OF PRODUCTION</p><p><b>REFERENCES</b></p> <br><p></p>

Project Abstract

<p> </p><p>A battery charger is an electrical device employed for charging batteries. &nbsp;This batteries that are usually charged by battery changer are the storage battery charger are the storage batteries also known as “accumulator” the battery changer changes. &nbsp;The alternating current form the power line into d.c suitable for charging.</p><p> When the battery is fully changed, is up to it’s maximum, 12 volt, the charger with automatically stop changing with the help of the contact relay, the transistor and the zener diode when bend the current back to the system.</p> <br><p></p>

Project Overview

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