Power Amplifier34

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INTRODUCTION
Power amplifier is an electronic device, which is used to increase sound energy.  In other words, the final stage which must driven a given load e.g mechanical indicator, a loudspeaker cathode roy tade, magnetic deflection coil, a transmitting accrual of a communication network.  Power amplifier is also used in regulation power supplies, chopper amplifier, motor controller etc.  In general the load will by its nature, demand a certain power from the amplifier and the out stage must be capable of delivering the power (large current or voltage swing).  The preceding stage to the power stage are supposed to given the input to drive the power stage so that it can produce the load requirement.

In power amplifier a large portion of active device (transistor) characteristics is used (i.e there is large alternating input voltage or current to make efficient use of the device.

The economic importance of power amplifier is know to be useful in many aspect of both social and business activities.  In the social activity, it is found that during occasions like public gathering and parties people us power amplifier to increase or enlarge their speech as to be audible.  While the business activity: during business promotion, it is found that marketing agents use power amplifier for their advertisement: for notifying the public about combating.


TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
PREFACE
LIST OF SYMBOLS AND ABBREVIATION 
TABLE OF CONTENTS

CHAPTER ONE
1.0 INTRODUCTION
1.1 GENERAL DESCRIPTION
1.2 INTERNAL AND EXTERNAL FEATURE
1.3 SEQUENCES OF OPERATION

CHAPTER TWO
2.0 DESCRIPTION OF AUDIO PRE-AMPLIFIER 
2.1 CHARACTERISTIC OF AUDIO PRE-AMPLIFIER
2.2 THE CONTROL STATE

CHAPTER THREE
3.0 DESCRIPTION OF (IC) INTEGRATED CIRCUIT
3.1 ELECTRICAL CHARACTERISTICS
3.2 APPLICATION OF INTEGRATED CIRCUIT 

CHAPTER FOUR
4.0 POWER SUPPLY

CHAPTER FIVE
5.0 DESCRIPTION OF GENERAL AMPLIFIES
5.1 CLASSIFICATION OF AMPLIFIERS
5.2 EFFICIENCY AND APPLICATIONS
5.3 FINDINGS AND RECOMMENDATIONS
5.4 CONCLUSION
REFERENCES





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