The Design And Construction Rechargeable Lantern With Dual Power Supply (PDF/DOC)
ABSTRACT
Nowadays, because of low energy or power consumption, low heat emission, low cost, the portability, wider application, LED bulbs are highly used than florescent lamp when building lantern.
This work is on LED lantern with dual power supply which uses an AC source to power the lamp when there is mains power supply and also use a rechargeable battery which is charged with mains source which is to be used during power outage using LEDs as the lighting device. It also serves as immanency sources of light mostly used when there is failure from out public power supply (P.H.C.N).
TABLE OF CONTENT
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
1.2 OBJECTIVE OF THE PROJECT
1.3 SIGNIFICANCE OF THE PROJECT
1.4 PURPOSE OF THE PROJECT
1.5 LIMITATION OF THE PROJECT
1.6 APPLICATION OF THE PROJECT
1.7 ADVANTAGES OF RECHARGEABLE LANTERN
1.8 BENEFITS OF THE PROJECT
1.9 PROJECT ORGANIZATION
CHAPTER TWO
LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND OF THE PROJECT
2.2 THEORIES AND MODEL RELEVANT TO THE DESIGN
2.3 SYSTEM COMPONENT DESCRIPTION
CHAPTER THREE
CONSTRUCTION
3.1 DESCRIPTION OF THE SYSTEM BUILDING BLOCKS
3.3 CIRCUIT DIAGRAM
3.4 OPERATION PRINCIPLE OF THE SYSTEM
3.4 CIRCUIT DESCRIPTION
3.5 COMPONENT LIST
3.6 COMPLETE CIRCUIT DIAGRAM OF THE SYSTEM
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING ANALYSIS
4.2 CASING AND PACKAGING
4.3 ASSEMBLING OF SECTIONS
4.4 TESTING OF SYSTEM OPERATION
4.5 INSTALLATION OF THE COMPLETED DESIGN
CHAPTER FIVE
5.1 COST ANALYSIS
5.2 PROBLEMS ENCOUNTERED
5.3 RECOMMENDATION AND CONCLUSION
5.4 REFERENCES
CHAPTER
- INTRODUCTION
An LED lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as torches, or as general light sources outdoors. Low light level varieties are used for decoration. The term “lantern” is also used more generically to mean a light source, or the enclosure for a light source.
Rechargeable lights are very useful electrical gadgets and are quite popular, too. During a power failure these portable lights are able to instantly illuminate through battery backup and never allow us to stumble in the darkness. Although you will find a variety of them in different shapes and sizes in the market, but building your own emergency light at home can be a totally different experience. It will not only help you to create a quality design but also will acquaint you to the technical aspects of the unit. Besides, you also get an opportunity to customize the circuit as per your own needs.
1.2 OBJECTIVE OF THE PROJECT
The objective of this work is to design an LED lighting device that can be powered with AC 220V 50Hz and Rechargeable battery 12V 1.6Ah for the purpose of lighting the environment.
1.3 PURPOSE OF THE PROJECT
The purpose of this work is to design lantern with two power options that provides the highest power flexibility backup for ones outdoor, emergencies and power outage. So that you have the maximum operating time and high flexibility of batteries
1.4 SIGNIFICANCE OF THE PROJECT
This system charges when there is power supply, the energy is stored in a rechargeable battery which is to be used when there is power outage and it can also be used as a lantern when there is mains power supply. The lasting of the stored energy depends on the capacity of the rechargeable battery.
1.5 LIMITATION OF THE PROJECT
The device is powered directly to ac mains (220V 50Hz) and rechargeable battery (12V 1.6Ah).
It can easily get burnt when high voltage is experienced in the mains if it is not properly regulated.
It is portable outdoor lantern dual power supply design white LED.
1.6 APPLICATION OF THE PROJECT
Rechargeable lantern is used in many places such as:
- In school library, hall and labs
- Churches
- Workshop
- Homes, etc
All for the purpose of illuminating of such environment and to make sure that the system will not lacks power supply. They highly choose because of its simplicity and safety, that is, it can be charged, hanged, and continues with your adventures into the night.
1.7 ADVANTAGES OF RECHARGEABLE LANTERN
Lightweight. Compared to a gas lantern, a rechargeable lantern is light as a feather. Gas lanterns are typically made of glass and have metal canisters that add weight that rechargeable lanterns are able to eliminate. The lighter the weight of the lantern the more versatile it can be, whether it be to light up the card table or take it for your bathroom break.
User-friendly. With the variety of lanterns like liquid fuel, gas, or even candle, a rechargeable lantern is an alternative that offers ease of use. All you have to do it switch it on and light is available. This saves you from having to remember to bring other items on the trip like gas to fuel the lantern or matches to light the candle. If you happen to have kids joining you on a camping trip, spoiler alert: they will more than likely drop a gas lantern and break the glass. Skip to the good part and allow them to carry a rechargeable lantern without worry.
Safe. Lanterns with flames always come with a small risk of causing a fire, but rechargeable lanterns don’t require a babysitter. By avoiding a kerosene powered lantern, you can eliminate potential fumes.
Convenient. The right rechargeable camping lantern offers a number of ways to keep it up and running. These can be charged via AC plug
1.8 BENEFITS OF THE PROJECT
The rechargeable Lithium Ion battery is one of the most long lasting batteries and provides both reliable and durable power. Lithium Ion batteries are more efficient and last longer than standard batteries.
– faster charging time
– You do not have to completely deplete the battery before recharging again
– Approximately 50% longer runtimes at the same level of brightness
– More power, less bulk
1.9 PROJECT WORK ORGANIZATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to rechargeable LED lantern with dual power supply. In this chapter, the background, significance, objective limitation and problem of a rechargeable LED lantern with dual power supply were discussed.
Chapter two is on literature review of rechargeable LED lantern with dual power supply. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.
2.0 LITERATURE REVIEW
2.1 Introduction
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