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Lyceum of the Philippines - Laguna Km. 54, National Highway, Makiling, Calamba
College of Engineering
“PORTABLE FORMATTER WITH CHARGER AND SPEAKER”
A Project Study
In Partial Fulfillment of The Requirements For
Technical Writing for Engineers
Submitted by:
Ancheta, Braimar Isle
Dizon, Argel Joseph D.
Galicia, John Ray
Lunar, Janison L.
Razonales, Ivy A.
Sumitted to:Mr. Nelson Tenorio
Instructor
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Chapter 1THE PROBLEM AND ITS BACKGROUND
Introduction
The 21st Century, the present time when modern technology have greatly
influenced almost all aspects of human life. Throughout history, society have
witnessed dynamic technological advances affect the way of living, most of which
never fail to alleviate and hasten daily tasks, provide people with entertainment
and leisure, and enhance the standards of industry, transportation and
communication. Such improvements in technology have indeed, substantiate the
people’s needs and desire to live a life of comfort and relief. Therefore, people
are constantly seeking for significant breakthroughs which will further escalate
the quality of human life.
Reference: http://en/encartaencyclopedia/technology
Interfacing is a process in computing technology that mobilizes the entire
computer system which is primarily composed of numerous connections. These
connections are a vital as the parts themselves because unless they are
accurate, the computer could not work.
Reference: http://en.wikipedia.org/wiki/interfacing
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One of these newly patented systems is the USB or the Universal Serial
Bus which efficiently contribute to the information technology. USB (Universal
Serial Bus) is an industry standard developed in the mid-1990s that defines the
cables, connectors and protocols used for connection, communication and power
supply between computers and electronic devices.
Reference: http://en/encartaencyclopedia/technology
USB was designed to standardize the connection of computer peripherals,
such as keyboards, pointing devices, digital cameras, printers, portable media
players, disk drives and network adapters to personal computers, both to
communicate and to supply electric power . It has become commonplace on other
devices, such as smartphones, PDAs and video game consoles.
With a highly efficient interfacing device such as the USB system, the
fundamental computer functions such as formatting, storing, file transferring, and
a whole lot more would be faster in a highly successful rate. This in turn would
improve our daily activities in information technology with countless folds. Just
imagine how MIS or Management Information System would be far productive
with this technology.
Reference: http://en.wikipedia.org/wiki/USB
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Background of the Study
The use of Flash drives is very important these days. Flash drives help
carry files in the easiest way. It’s very convenient and handy. But there are times
Flash drives get affected with viruses from computers. Flash drives can also
transfer viruses. It can affect the next computer the flash drives will be inserted
to. Because of this, flash drives can be corrupted and the files in it will be unable
to be read and used. This is a big problem especially when those files are really
important. To get the virus out, users need to insert their flash drives to
computers and then format it. But due to the fact that flash drives can transfer
viruses, users have hard time doing this. A portable formatter will be helpful in
this case. You will no longer insert it to your computer and you can format flash
drives anytime and anyplace.
Reference: http://en.wikipedia.org/wiki/Flashdrives
Almost everyone have a cell phone these days, so a cell phone charger
will be needed. Charging of cell phones is also one of the important things people
need to do. Cell phones may not function well if it’s not charged well. Universal
chargers are now invented to be used in different cell phones. They are also very
convenient and handy. It can no longer be limited to only one model of cell
phone.
Reference: http://en.wikipedia.org/wiki/cellphones
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Statement of the Problem
In line with conducting the project study, the researchers of this research
has to solve the following problems:
1. What are the scientific theories, principles and literatures which
concern the Project Study entitled “Portable Formatter with Charger
and Speaker”?
2. What are the methods, materials and techniques involved in
constructing an ideal prototype device such as the Portable Formatter
with Charger and Speaker?
Objectives of the Study
General Objective:
To design a system that would optimize interfacing technology with
the Portable Formatter with Charger and Speaker, the researchers of this
research aims to accomplish the following objectives
1. To design a prototype device called “Portable Formatter with
Charger and Speaker
2. To determine the methods, materials and processes involved
designing the project study
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Significance of the Study
This study “Portable Formatter with Speaker and Charger” primarily
concerning the development of a device that would improve computing systems
is significant and beneficial to the following:
• General computer users
This project study would be beneficial to the general population of
computer users as it would greatly improve basic computer functions like
interfacing or computer connections, formatting and file managing.
• Computing companies and manufacturers
Computing companies and manufacturers would benefit from the
accomplishment of this project as they can adopt the patented device and
manufacture it with their product line, or otherwise develop the device within the
company’s system, enhancing their computer systems capabilities in file and
network management.
• Offices and business firms
Offices and business firms would benefit greatly concerning their
MIS or Management Information System Office as the study would further
contribute to better computer functions. Devices are easily formatted by the
patented device formatter. Interfacing would be a lot simpler and faster with the
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multi-installed adapters and ports. File management would then be portable and
thus, extending managing capabilities with countless folds.
• Future researchers and project study researchers
It will also benefit future researchers as it could be a source of
ideas and innovations to further improve computer applied systems.
Scope and Limitations
The scope of this study involves the integration of USB and LCD
applications on a hardware device, installed with software with formatting
capabilities. The features of the device are limited to portable formatting, an LCD
interface for file managing and multiple port adapters.
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Definition of Terms
Adapter
An electronic component which connects ports or sockets of different
devicesa.
Charger
An electronic device that stores or charges electrical energy from another
electricity source.
Digital Files
Are digital data inputted or stored in a computer system.
Formatting
A computer function deleting all stored digital file from a certain device and
adjust it to desired settings.
Flash Drive
An electronic device which is a removable computer drive that stores large
amount of computer data.
Information Technology
The technology which generally describes the digital age of the present
society and its vast computer application.
Interface
The program or software designed for the computer user’s function.
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LCD (Liquid Crystal Display)
The process of projecting digitally enhanced image on a screen.
MIS (Management Information System) – System
The system that generally describes the entire network, file and server
management of a certain school, office, firm or a certain geographical area.
Portability
A computer feature that generally describes the capability of devices of
being easily transported and used without the hassle of wires and tables.
Ports
The part of computers wherein wires and plugs for connections are
insterted.
Prototype
Is a sample or trial product which is still undergoing series of observations
and tests and not yet officially justified as to something that would work.
USB (Universal Serial Bus)
The computer method of using the USB port for faster and more efficient
connection.
Virus
A computer ware specifically designed to harm computers.
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Chapter 2REVIEW OF RELATED LITERATURE
Foreign
Disk formatting is the process of preparing a hard disk drive or flexible
disk medium for data storage. In some cases, the formatting operation may also
create one or more new file systems. The formatting process that performs basic
medium preparation is often referred to as "low-level formatting." The term "high
level formatting" most often refers to the process of generating a new file system.
In certain operation systems (e.g., Microsoft Windows), the two processes are
combined and the term "format" is understood to mean an operation in which a
new disk medium is fully prepared to store files. As a general rule, formatting a
disk is "destructive," in that existing data (if any) is lost during the process.
Source: http://en.wikipedia.org/wiki/Disk_formatting
Formatting Process
Formatting a disk for use by an operating system and its applications
involves three different steps.
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1. Low-level formatting (i.e., closest to the hardware) marks the
surfaces of the disks with markers indicating the start of a recoding block
(typically today called sector markers) and other information to be used
later, in normal operations, by the disk controller to read or write data.
This is intended to be the permanent foundation of the disk, and is often
completed at the factory.
2. Partitioning creates data structures needed by the operating
system. This level of formatting often includes checking for defective
tracks or defective sectors.
3. High-level formatting records into the structure created by the
intermediate-level formatting the file system format (i.e., the data
structures used by the OS, to identify the logical drive or partition's
contents). This may occur during operating system installation, or when
adding a new disk. Disk and distributed file system may specify an
optional boot block, and/or various volume and directory information for
the operating system.
Source: http://en.wikipedia.org/wiki/Disk_formatting
Portable software is a class of software that is suitable for use on
portable drives such as a USB (thumb) drive or digital audio player or PDA with
"drive mode", although any external hard drive can be used. [1] [2] The concept of
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carrying one's favored applications, utilities, and files on a portable drive for use
on any computer is one which has evolved considerably in recent years.
Programs in this category (also known as portable applications) are
typically 'lite' versions of their parent software, but there are many exceptions.
To be considered portable, for purpose of this list, a software program must:
1. Not require any kind of formal installation onto a computer's
permanent storage device to be executed, and can be stored on a
removable storage device such as USB flash drive, enabling it to be used
on multiple computers.
2. Settings are stored with, and can be carried around with, the
software (i.e., they are written to the USB drive). If the registry is used to
store settings, the application's configuration isn't portable, and must be
set up on every PC it is used on
3. Leaves a zero (or near-zero) "footprint" on any PC it is run on after
being used. i.e., All temporary files/registry settings should be removed
once the program has exited, and files created by the user can be saved
directly to the same removable media as the application is stored on.
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College of Engineering
Generally, smaller utility/toolkit software is inherently fairly portable; though
larger applications are sometimes changed in order to allow a portable versions
to be released (e.g., Opera@USB and OperaTor ).
Source: http://en.wikipedia.org/wiki/List_of_portable_software
A USB system has an asymmetric design, consisting of a host, a
multitude of downstream USB ports, and multiple peripheral devices connected
in a tiered-star topology. Additional USB hubs may be included in the tiers,
allowing branching into a tree structure with up to five tier levels. A USB host may
have multiple host controllers and each host controller may provide one or more
USB ports. Up to 127 devices, including hub devices if present, may be
connected to a single host controller. USB devices are linked in series
through hubs. There always exists one hub known as the root hub, which is built
into the host controller.
A physical USB device may consist of several logical sub-devices that are
referred to as device functions. A single device may provide several functions, for
example, a webcam (video device function) with a built-in microphone (audio
device function). Such a device is called a compound device in which each
logical device is assigned a distinctive address by the host and all logical devices
are connected to a built-in hub to which the physical USB wire is connected. A
host assigns one and only one device address to a function.
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Source: http://en.wikipedia.org/wiki/USB
Chapter 3METHODOLOGY
This chapter discusses the research design that will be used in the study.
This will also explain the methodological approach to understanding the
implications of the “Portable Formatter with Charger and Speaker”.
The questions posed in this project, "what is the principles of designing
the Portable Formatter with Charger and Speaker and what are the methods that
will be conducted in constructing the said device?" will be answered using the
methodology detailed in this component of the research project.
The first step in understanding the implications stated above is through the
use of Library. This will allow researchers for references and to work easily and
refer quickly to sections mentioned in the project more efficiently.
The next step in this process will be to define the terms and concepts to
be discussed in the paper. Free speech concepts and ideologies from Argel
Joseph Dizon, Braimar Isle Ancheta, Ivy Razonale, Janison Lunar and John Ray
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Galicia will be offered as a basis for understanding the fundamental.
Furthermore, and it also be included in order to familiarize the reader with the
mechanism.
The project analysis consists of four elements. First, this researcher will
identify key terms of significant interest related to the study. These key terms will
serve as the nexus for other terms, which exist in close proximity, conceptually,
to the identified key terms. Next, these terms will be charted to create clusters of
concepts, which will serve as a basis to explain and explore these concepts in
relation projects study. From these clusters of terms, patterns will be defined
which serve to further define the meanings of the key terms. Finally, this project
will name the motive. The intent is to discover the motive of the Portable
Formatter with Charger and Speaker
Through the cluster analysis the motive(s) and definitions will be further
explored to determine if they exist in direct conflict with the project. Furthermore,
the study will discuss the findings of the cluster analysis and the implications that
the product will possessed.
After researching for significant background of the study, and consulting
on related literatures and studies, determining the problems to be solved and the
corresponding objectives required to suffice the solutions, the researchers of the
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study shall now conduct a series of research and methodological approach to
design and construct the actual device which is the Portable Formatter with
Charger and Speaker.
These include planning the conceptual framework of the design, and the
careful analysis and design of the system block diagram and schematic diagram
of the device.
In line with this, the researchers shall acquire prior knowledge in circuitry
and microelectronics for the internal electrical connection, input/output analysis,
power, voltage and current capacity, and electronic component specifications
and compatibility. And thus, the researchers should also have adept skills in
constructing the actual device from its theoretical design. The plotted diagram
would be subjected to further tests in electronic circuit analysis computer
programs such as MultiSIm and Target.
After the conceptual design has been finalized, the researchers of the
study shall now build the actual device, implementing the methods and process
involved. Successfully constructing the Portable Formatter with Charger and
Speaker with efficiency meets the stated objective of this study.
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Research Design
The conceptual structure of the research constitutes a project study of a
specific device entitled “Portable Formatter with Charger and Speaker.” Thus, the
study’s data collection primarily involves the methods, materials and techniques
to be conducted to construct the device. The study’s approach would center on
matters concerning how to build the Portable Formatter, what are the
components involved and certain equipments to be used, and the relevant
matters to be considered in conducting the project study.
System Block Diagram
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Figure 1. System Block Diagram - Portable Formatter with Charger and Speaker
Figure 1 shows the System Block Diagram of the device termed as
Portable Formatter with Charger and Speaker. The diagram illustrates the
processes involved and how they link the flow of data throughout the different
components of the entire system. Further details follow elaborating the flow of
data from inputs to outputs, how they are processed in the system, and the
functions of each component.
System Processes
• External Device Interfacing
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Is the connection of external peripheral devices into the system
chassis of the Portable Formatter initializing from the connection of USB
cables of devices into the USB Port or insertion of memory cards into the
memory card slot.
• Software Interfacing
The external device is read and connected into the software of the
Portable Formatter until finally shown into the user interface.
• Formatting/Reformatting
Formatting is the process of preparing a hard disk drive or flexible
disk medium for data storage. It is the first-time formatting of the device.
Reformatting is a high-level formatting performed on a functioning
disk drive to free the contents of its medium. The most important aspect of
the process is that it frees disk space for use by other data. To actually
"erase" everything requires overwriting each block of data on the medium;
something that is not done by many PC high-level formatting utilities.
• Audio Playing
Audio Decoding
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Sound files in .mp3, .wma, and .m4a formats are read from the
drive source and decoded in a format that the Portable Formatter can
playback.
Transduction
Is the process wherein the sound file in electrical form is
transduced or converted into sound for further amplification and playback.
Amplification
Is the process wherein sound volume is amplified or increased until
played by the loudspeaker.
• Power Regulation
Power Step-down/Step-up
Transfers supplied electrical energy from source to the entire
Power Supply Unit through inductively coupled conductors, also steps-up
or step-down the AC voltage into the suitable voltage magnitude.
Rectification
Converts alternating current (AC), which periodically reverses
direction, to direct current (DC) which flows in only one direction.
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Filtering
The process of eliminating pulsating AC voltage component from
the DC supplied voltage, but with small AC ripples.
Smoothing
The process wherein small AC ripples are finally eliminated
producing pure DC voltage.
• Charging
To put energy into a secondary cell or rechargeable battery by
forcing an electric current through it.
System Components
• USB Ports/Card Slots
USB ports was designed to standardize the connection
of computer peripherals, such as keyboards, pointing devices, digital
cameras, printers, portable media players, disk drives and network
adapters to personal computers, both to communicate and to
supply electric power
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Card Slots are sockets wherein memory cards are insterted.
• LCD Screen
A liquid crystal display (LCD) is a flat panel display, electronic
visual display, video display that uses the light modulating properties
of liquid crystals(LCs). LCs do not emit light directly. It is where the user
interface of the Portable Formatter software will be projected.
• Formatter Software
Is the customized software of the Portable Formatter which will
process the entire device’s functions specially the formatting of flash disks.
• Audio Player
Decoder
Is a computer program implementing an algorithm that compresses
and decompresses digital audio data according to a given audio file
format or streaming media audio format.
Amplifier
Amplifiers drive the loudspeakers used in PA systemsto make the
inputted sound source louder or play recorded music.
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Loudspeaker
Is the electroacoustic transducer that produces sound in response
to the electrical audio signal input.
• Power Supply Unit
Transformer
The Transformer step up or down the input AC source voltage into
the required magnitude of voltage.
Rectifier
Rectifier converts the AC voltage supply into pulsating DC voltage.
Filter
Filter eliminates the pulsating AC component from the DC voltage
Voltage Regulator
Is an electrical regulator designed to automatically maintain a
constant voltage level.
• Battery Charger
Is the device used to put energy into a secondary cell
or rechargeable battery by forcing an electric current through it.
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IPO Chart
Input Process Output
External DeviceConnection
Device Interfacing User Interface Display
Disk Drive ConnectionProgram Interfacing and
Disk FormattingFormatted Disk
MP3, WMA, M4A Files Audio Decoding andAmplification
Amplified Audio Playback
110V – 220V ACPower Regulation and
ChargingCharged DC Voltage
Battery
Table 1. IPO chart of the Portable Formatter with charger and speaker.
The Table above shows the multiple inputs of the system, how they are
processed and the multiple outputs of the device.
Schematic Diagram
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Figure 2. Prototype Schematic Diagram - Portable Formatter with Charger and
Speaker
Figure 2 shows the schematic diagram of the Portable Formatter. This
circuit diagram is designed using the MC34063 circuit which is a monolithic
control circuit delivering the main functions for DC DC voltage converting.
Circuit Component Specification
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Electronic Components Specification Quantity
Resistors
1 Ω 0.5W 3
1k Ω 2
560 Ω 1
10 Ω 0.5W 1
470 Ω 1
Capacitors
470µF 2.5V 1
100nF 1
470pF 1
1000 µF 16V LOW ESR 1
Inductors 220µH 1
Diodes
1N5404 1TVS1 P6KE27A 1
1N5819 1
LED 1
USB Port/Socket 5V at 500mA 1
Integrated Circuit MC34063A 1
Switch SPST 1
Table 2. The Circuit Component Specification of the Portable Formatter with
Charger and Speaker.
The Table above shows the electronic components found in the circuit of
the Portable Formatter, with their corresponding specifications or magnitude and
their quantities. Further discussion below elaborates the data flow, the functions
of each components and the operations involved in the system.
The output voltage of this MC34063 mp3 player charger will deliver a 5
volts output voltage at 660mA output current . The MC34063 mp3 player charger
contains an internal temperature compensated reference, comparator, duty cycle
controlled oscillator with an active current limit circuit, driver and high current
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output switch. The output voltage is adjustable through two external resistors with
a 2 % reference accuracy. This device circuit require an input voltage from 9 to
15 volts DC .Modify the VR1 variable resistor you can adjust the output voltage at
5 volts . The L1 coil has 75 turns of 0.5 mm enameled copper wire on a Neosid
powdered iron core 17-732-22.