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
CHAPTER ONE
INTRODUCTION
1.1 Background of the Study
An inverter is an electronics device or circuitry that changes direct current (D.C) to Alternating current [AC]. The device make used of an in–built automatic circuit to achieve a complete automation of the entire system. The input voltage, output voltage, frequency and overall power handling depend on the design of a specific device or circuitry.
An inverter is very important element that cannot be neglected in this Country as it is deeply fasten into the fabric of the society for the obvious reason of inadequate power supply. It is an important element in homes to power household devices like electric bulbs, electric cooker, refrigerator, television set e.t.c. It also finds applications in various places work/offices to power devices like air conditioners, computers e.t.c.
In spite of constant repair and efforts put forward by the stake holders in electricity industry to ensure stable power supply, yet the power generation and distribution across the country is very bad, low and it very far from being enough.
However power failure has resulted in people buying generators for their daily activities. Businesses are not functioning due to failure of power supply. These are the reason that make necessary of designing and construction of inverter and other standby system that can deliver maximum output power to the load.
Statistics have shown that the number of business that have been closed down simply because of power failure, cannot be over emphasized, so mankind need inverter seriously in other to restore technology development, business and medical controls. However the background of the study lies within the reason why the construction of inverter should be forwarded the factor that increase the quality of inverter marketability.
Finally, the success of this study will beneficial to the society. Mass production of inverters will lead to improve standard of living of the people and the nation will move forward in it pursuit of technology development.
