Construction and Design of a 6v Rechargeable Lamp
CHAPTER ONE
OBJECTIVE OF THE PROJECT
- Rechargeable lamp helps one to understand and how a D.C source can generate a source of light.
- It helps one to understand how to design a portable lamp
- To see how a source of light will be generated in the absence of electricity or power supply
CHAPTER TWO
LITERATURE REVIEW
HISTORICAL BACKGROUND OF RECHARGEABLE LAMP
In the olden days, man depended solely on sun and other local source of light as the only way out.
It was a big problem mostly, at nights for he ancient men. Due to the arrival of science and technology in our society, a lot benefits have been derived.
Electricity in particular came into existence by the discovery made by our great scientist called Micheal Faraday. This electricity has been transformed and modified in different ways in our present day society, these includes as a source of a energy for cooking, source of energy to drive our engines, source of power in our homes etc.
This electricity has also been modified in further ways, originally it was only the A.C source of power that was known in our society but today through the advancement of science and technology electricity has been incorporated into a D.C source, this D.C source is mostly portable.
The DC source of energy is used in our transistor radios, cell phone, torch light and rechargeable lamps etc. the DC source in this rechargeable lamp is a rechargeable battery that has the ability to store current for a long period of time.
This is equally used as a source of energy supply be connecting a required load of same voltage to its positive and negative terminals as required because it has polarities.
CHAPTER THREE
DESCRIPTION OF THE SYSTEM BUILDING BLOCKS
CHAPTER FOUR
IMPLEMENTATION
First of all I soldered the diodes to form the rectifying CCT , which will be connected to the transformer by the left and to the entire CCT to the right. I then soldered the capacitors to form the filter CCT.
The IC (regulator) is soldered and a heat sink attached to it. The center terminal of the TC was soldered connecting it to the collector of the transistor for voltage regulation and biasing. I then soldered the resistors according to my CCT diagram above.
At this point, I then connected some wires of about 15cm long to the terminals of the 6v battery not neglecting their polarities. I then connected my switch at the negative terminal of the battery along a wire to the bulb. The switch is to on and off the lamp.
I used a silver plate to direct the rays of light.
CHAPTER FIVE
COST ANALYSIS
PROBLEMS ENCOUNTERED
During my course of research and production, I encountered numerous problems. But after solving this problem, it has widen my scope of understanding on this my project.
Some of this problem are improper connections of the diodes, private components in the marker because originals were difficult to be found. It took me a good number of time before I could really know how to position my lamp which is the output. Also the packaging gave me a course for concern, which I resolve by using a wooden box for it.
RECOMMENDATION AND CONCLUSION
I will advice that student should be properly equipped with practical because this will help to boost their knowledge on how to implement simple projects.
If every student in electrical / electronic department give a good orientation on implementation and designs then, I believe that Nigeria will have the greatest engineers in he nearest future.
Personally my project has widen my understanding and really made me to know the simple principle of how a rechargeable lantern works.
REFERENCES
- Project Guide Electrical / Electronic Department 2006 / 2007
- Fundamentals of Electrical / Electronics Engineering Technology 6th Edition by BJ Theiaja
- Fundamentals of Electronics by Nelkon M.
- Electronic Devices by D. Foyd
- Engineers Notebook on Integrated Circuits by Radio Shack London.
