THE DESIGN AND CONSTRUCTION OF A DC TO AC POWER INVERTER INCORPORATED WITH AN AUTOMATIC SWITCH OVER BATTERY CHARGER

THE DESIGN AND CONSTRUCTION OF A DC TO AC POWER INVERTER INCORPORATED WITH AN AUTOMATIC SWITCH OVER BATTERY CHARGER

CHAPTER ONE

INTRODUCTION

Control engineering and the associated theory are concerned with the means by which systems can be made to behave in a desired way. All modern engineering systems include certain aspects of control systems at some point in their broadcast sense.

The system described in this thesis is a DC – AC converter, which is a device used to convert direct current to alternating current or signal.

This equipment is not widely used in our country, not because it is unimportant, but because people never consider its construction and design.

It is intended for use with a 12v lead acid battery. For example, in a car, a suitable output voltage of 230v AC is available.

This

A 230v AC output voltage can be used to power small electrical appliances such as lights, electric fans, radios, soldering irons, and so on.

However, it is worth noting that the AC generated by this appliance is nothing like the AC generated by large generators. This is due to the fact that the voltage and power are lower in terms of AC generation duration. This appliance is thus suitable for short-term replacement for real AC generation, particularly in remote areas and installations where electrical appliances are sold and the need for it to be tested and certified good may arise.

Another important application for this equipment is in communication systems. in a situation where the AC power supply is constantly failing, as in

In offices, a DC-AC converter is required, and in such cases, light sources can be used.

Most industries in the country do not use DC – AC converters because they are thought to be expensive in comparison to the task they perform. However, when the task that this appliance can be used for is considered, it can be concluded that it is less expensive. The design is straightforward, inexpensive, simple to operate, and portable. The importance of this device and its function cannot be overstated, especially given our current economic situation and the fact that our power generating authority (NEPA) has been dubbed NEVER EXPECT POWER ALWAYS.

In these days of computer-based control and monitoring of complex field engineering operations, a failure of alternating current power supply to communication equipment means work stoppage and, in some small-scale industries, significant economic and material losses that could have been avoided.