REVIEW OF COMPUTER POWER BANK CHARGER
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TITLE PAGE
REVIEW OF COMPUTER POWER BANK CHARGER
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "review of computer power bank charger" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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Computer Power Bank charger is comprised of a special battery in a special case with a special circuit to control power flow. They allow you to store electrical energy (deposit it in the bank) and then later use it to charge laptop via the laptop charger. This device composed of four-cell 12,000 mAh lithium-ion battery, a DC-to-AC inverter, and a and standard 220-volt Nigeria wall plug on the front. Computer Power Bank chargers come in different sizes, capacity and shapes. In this work computer power bank chargers are reviewed.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
1.2 PROBLEM STATEMENT
1.3 OBJECTIVE OF THE PROJECT
1.4 SIGNIFICANCE OF THE PROJECT
1.5 SCOPE OF THE PROJECT
1.6 LIMITATION OF THE PROJECT
1.7 APPLICATION OF THE PROJECT
1.8 PROJECT ORGANISATION|
CHAPTER TWO
2.0 LITERATURE REVIEW
2.1 OVERVIEW OF THE STUDY
2.2 REVIEW OF THE RELATED STUDY
2.3 REVIEW OF BATTERY CHARGER
2.4 HISTORICAL BACKGROUND OF THE STUDY
2.5 REVIEW OF RECHARGEABLE BATTERY
2.6 BATTERY CHARGING AND DISCHARGING
2.7 COMMON RECHARGEABLE BATTERY TYPES
CHAPTER THREE
3.0 CONSTRUCTION
3.1 BASIC DESIGNS OF THE SYSTEM
3.2 BLOCK DIAGRAM OF THE SYSTEM
3.3 CIRCUIT DIAGRAM OF THE SYSTEM
3.4 DESCRIPTION OF COMPONENTS USED
3.5 PARTS LIST
3.6 CIRCUIT DESCRIPTION
3.7 SYSTEM OPERATION
CHAPTER FOUR
RESULT ANALYSIS
4.0 CONSTRUCTION PROCEDURE AND TESTING
4.1 CASING AND PACKAGING
4.2 ASSEMBLING OF SECTIONS
4.3 TESTING OF SYSTEM OPERATION
4.4 COST ANALYSIS
4.5 ECONOMIC OF THE PROJECT
4.6 PROJECT VIABILITY
4.7 PROJECT RELIABILITY
4.8 PROJECT MAINTAINABILITY
CHAPTER FIVE
5.0 CONCLUSION, RECOMMENDATION, REFERENCES
5.1 CONCLUSION
5.2 RECOMMENDATION
5.3 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
A computer power bank is a portable laptop computer battery charger, or recharger,[1][2] which is used to put energy into a secondary cell or rechargeable battery of a laptop computer by forcing an electric current through it.
This device supplies power from its built-in battery through a charging port. Power banks are popular for charging devices when little adjustment is made on it. They can also be used as a power supply for various powered devices such as lights and small fans. They usually recharge with a power supply. The power bank includes a control circuit that both regulates charging of the battery and converts the battery voltage for the device. Some chargers for cells like 18650s and 26650 can also serve as a power bank. Although it is generally more cumbersome to carry such a charger with cells rather than a conventional power bank, this type of setup has the advantage of being able to charge cells for other uses. It also has the advantage that, when the cells are dead, they can be swapped for fresh cells for immediate use rather than having to be recharged first.
1.2 PROBLEM STATEMENT
Sometimes there is nothing worse than losing all the charges on your laptop computer especially when you are in the middle of something very important. Usually this happens at the most inconvenient time probably when you are using your laptop computer to surf the web, in the middle of a browsing or when you are desperate to send an important email or text message. Nonetheless, in this dispensation of global village, there is never a good time! If you are always on the move and you never know whether there is power supply in the place you are moving to, the very last thing you would imagine is to have your laptop computer low or even empty on battery. For those who depend largely on their mobile devices, not having enough power for the battery can be a major catastrophe. How else will people reach you or how will you email people for business or personal reasons when your laptop computer is basically useless as it has gone off on you? All these are problem to our present time, to bring this problem to an end, power bank was introduced which is a portable device that can supply power using stored energy in its built-in batteries [Katerina, 2010].
1.2 AIM AND OBJECTIVE OF THE PROJECT
The main aim of this work is to carry out a review on computer power bank charger. The objectives of this project are to:
- review different types of computer power bank charger
- have knowledge on how to recharge mobile devices such as laptop computer when and where there is no power supply to charge the device from mains supply.
- To have the knowledge of lithium-ion battery and DC-to-AC inverter.
1.3 SIGNIFICANCE OF THE PROJECT
i. Power bank serve as an ‘extra battery’ or external charger for your laptop computer or other electronic devices. Power bank helps to ensure longer hours of typing, phone calls, or web browsing using your laptop computer.
2. It’s very useful when you have a power cut at your home or no electricity area.
3. Faster charging because these are highly powered devices.
1.4 SCOPE OF THE PROJECT
Laptop computer batteries often die at very inconvenient times, with no ac power outlet nearby. This device uses standard li-on batteries, which can be bought almost anywhere, to recharge laptop computer [Fowler, 2016].
The circuit chargers that typically come with laptop computer charge the battery for a brief period of time. Then, they stop, check the voltage, and verify the temperature against an internal table before deciding to stop or continue the charging process. The charging regulation required by the battery is performed within the device getting charged, and this design takes advantage of that circuit [Fowler, 2016].
1.5 LIMITATION OF THE PROJECT
computer power bank charger can only be recharged with mains supply, that is, 220vac the duration of the charged when in used depend on the number of cell used, and the current of the charger.
The only issue I can really see is that the laptop power bank Charger is pretty heavy; if you already have a heavy shoulder bag, you probably won’t cherish the thought of adding it.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "review of computer power bank charger" is also available. Order full work to download. Chapter two of "review of computer power bank charger" consists of the literature review. In this chapter all the related work on "review of computer power bank charger" was reviewed.
CHAPTER THREE: The complete chapter three of "review of computer power bank charger" is available. Order full work to download. Chapter three of "review of computer power bank charger" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "review of computer power bank charger" is available. Order full work to download. Chapter four of "review of computer power bank charger" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a "review of computer power bank charger" is available. Order full work to download. Chapter five of "review of computer power bank charger" consist of conclusion, recommendation and references.
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