ABSTRACT

This project presents the design and construction of a DC to AC inverter system. It is designed to meet up with the power demand in the offices/homes in the absence of power supply from National Supply Authority. It is designed in such a way that it will take up to 12V DC from battery and inverts it to an output of 220V, 50Hz AC. It makes no noise during operation and not hazardous like carbon monoxide is generated to the surrounding. This is the feature makes it safe to used anywhere when compared to generator. Also, the circuit is capable of charging the battery [i.e 12V source] where there is power supply from supply Authority. This greatly reduces the cost of operation of the system

TABLE OF CONTENT

TITLE PAGE

CERTIFICATION

DEDICATION

ACKNOWLEDGMENT

ABSTRACT

TABLE OF CONTENT 

CHAPTER ONE

INTRODUCTION

1.1      BACKGROUND OF THE STUDY

1.2    PROBLEM OF STATEMENT

1.3   AIM AND OBJECTIVE

1.4   SCOPE OF THE PROJECT

1.5    METHODOLOGY

1.6 MOTIVATION

1.7    LIMITATION OF THE PROJECT

CHAPTER TWO

LITERATURE REVIEW

2.0 INVERTER

2.1 HISTORY OF INVERTER

2.2.1 GENERAL FEATURES OF THE PROTECT

2.2.1 POWER SUPPLY UNIT

2.2.2 CHANGENG OVER UNIT

2.2.3 SWITCHING UNIT

2.2.4 UNDER AND OVER VOLTAGE PROTECTION UNIT

2.2.5 OSCILLATOR UNIT

2.3 TYPES OF INVERTERS  

2.4 COMPARISON WITH THE GENERATOR  

CHAPTER THREE

3.0   CONSTRUCTION AND METHODOLOGY

3.1   COMPONENTS AND FUNCTION

3.1.1 RESISTOR

3.1.2 CAPACITOR  

3.1.3 DIODE       

3.1.4  TRANSISTOR         

3.1.5 NE555 TIMER

3.1.6 RELAY

3.1.7 REGULATOR    

3.1.8 BATTERY            

3.1.9 SWITCHES AND SOCKET   

3.1.10 METER (VOLT/AMPERE)

3.1.11 LAMINATION

3.1.12 FUSE 

3.1.13 TRANSFORMER

3.2 METHODOLOGY

3.2.1 STAGES INVOLVED IN THE PROJECT

3.2.2 DESCRIPTION OF VARIOUS STAGE IN THE INVERTER POWER UNIT

3.2.3  POWER AMPLIFYING STAGE OR INVERTING STAGE

3.2.4 MULTI-VIBRATOR        

3.2.5 CONSTRUCTION OF THE CASING    

3.2.6 HOUSING OF THE WHOLE COMPONENT

3.2.7 ARRANGEMENT OF COMPONENT ON VERO BOARD

CHAPTER FOUR

4.0 TESTING, DESIGN AND DISCUSSION

4.1.1 TRANSFORMATION STAGE

4.1.2 TRANSFORMER DESIGN 

4.1.3 FREQUENCY DIVISION COUNTER

4.1.4 FREQUENCY UNIT   

4.1.5 COMPONENT TESTING     

4.1.6 TESTING OF THE INVERTER

4.1.7 STAGE BY STAGE TESTING

CHAPTER FIVE

CONCLUSION AND RECOMMENDATION 

5.1 CONCLUSION

5.2 RECOMMENDATION

REFERENCES