DESIGN AND CONSTRUCTION OF 45W AUDIO POWER AMPLIFIER
By
OKPO ANTHONY S.I EE/N2003/021
Presented To
Department of Electrical/Electronic Engineering
ABSTRACT
A battery charger is an electrical device employed for charging batteries. This batteries that are usually charged by battery changer are the storage battery charger are the storage batteries also known as â€�“accumulatorâ€Â� the battery changer changes. The alternating current form the power line into d.c suitable for charging.
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.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.1 INTRODUCTION
1.2 STORAGE BATTERY/METHOD OF CHARGING
CHAPTER TWO
COMPONENT OF THE POWER
SUPPLY UNIT
THE RECTIFYING UNIT
THE SMOOTHING UNIT
THE REGULATOR AND REGULATED
D.C CHARGING UNIT
CHAPTER THREE
CIRCUIT DESIGN/DIAGRAMS
3.1 THE CASING
3.2 FULL WAVE RECTIFICATION (POSITIVE HALF WAVE)
3.3 THE BRIDGE RECTIFICATION
3.4 THE BLOCK DIAGRAM
3.5 THE CIRCUIT DIAGRAM
3.6 THE CONSTRUCTION
CHAPTER FOUR
TESTS AND OPERATIONS
4.1 BATTERY CHARGING
4.2 DIAGRAM OF CHARGING AND DISCHARGING CURVES
4.3 INDICATION F FULLY CHARGED BATTERY
CHAPTER FIVE
5.1 SUMMARY
5.2 CONSTRAINTS
5.3 CONCLUSIONS/SUGGESTIONS
5.4 COST OF PRODUCTION
REFERENCES
- FOR ENQUIRY
- [email protected]
- 09019904113
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