Post on 14-Jan-2017
WIRLESS CHARGINGOF
MOBILE PHONES I.V.S SIRISHA(III CSE)
S.DURGA SIRISHA(III CSE)
OVERVIEW:ABSTRACT
INTRODUCTION
METHODS OF CHARGING
WORKING OF WIRELES CHARGING
BLOCK DIAGRAM
NEED OF WIRELESS CHARGING
APPLICATIONS
ADVANTAGES
CONCLUSION
ABSTRACT The main objective of this current proposal is to
make the recharging of the mobile phones
independent of their manufacturer and battery make.
In this paper a new proposal has been made so as to
make the recharging of the mobile phones is done
automatically as you talk in your mobile phone.
INTRODUCTION
Smartphone are changing the way we live. With each new model, we
are used to getting more processor speed, new features, and entire new
ways of using them. Despite increased capabilities, battery life simply
hasn’t kept up.
The microwave signal is transmitted from the transmitter along with
the message signal using special kind of antennas called slotted wave
guide antenna at a frequency is 2.45 GHz.
There are three types of wireless charging :-
• Resonance Charging
• Inductive Charging
• Radio Charging
Methods of Wireless Charging
Resonance Charging :Two copper coils are used one attached to transmitter & another to
receiver.
Both coils are tuned to same electromagnetic frequency.
These coils when placed close to one It uses phenomenon of
“RESONANCE”, that causes an object to get energy when certain
frequency is applied.
Inductive Charging :
This method works on the principle of
“ELECTROMAGNETIC INDUCTION” where the charger device will
create an E.M field with alternating polarity using a coil of insulated
copper wire & a similar coil will be placed inside the mobile device
which will convert E.M field back to electric current there by charging
the battery.
Radio charging:
•This method is on the basis that Radio Waves are widely in use to transmit and receive cellular telephone, television, radio and Wi-Fi.
• A Radio wave once transmitted, propagates in all directions until it reaches an antenna tuned to proper frequency to receive it.
•A transmitter plugged in to a socket, generates radio waves, when the receiver attached to the device is set to the same frequency as the transmitter, it will charge the device’s battery .
Wireless chargers emit an alternating current via a transmitter coil, which then induces a voltage in the receiver coil found in the device.
Qi wireless charging pads are capable of charging Smartphone, tablets, Bluetooth headsets, cameras and portable power packs.
How does wireless charging work?
WORKING OF WIRELESS CHARGING SYSTEM
It works on the principle of Electromagnetic Induction.
Induction chargers typically use an induction coil to create an alternating
electromagnetic field from within a charging base station, and a second
induction coil in the portable device takes power from the electromagnetic
field and converts it back into electrical current to charge the battery.
Block Diagram of Wireless charging System
APPLICATIONS
To make the recharging of the mobile phones independent of
their manufacturer and battery make.
A new proposal has been made so as to make the recharging
of the mobile phones is done automatically as you talk in your
mobile phone.
NEED OF WIRELESS CHARGING
Use of separate chargers is eliminated.
Wireless energy transfer can potentially recharge the mobile
phones without chords.
Only one microwave transmitter can serve to all the service
providers in that area.
The need of different types of chargers by different
manufacturers is totally eliminated.
ADVANTAGES
CONCLUSION Thus this paper successfully demonstrates a novel method of
using the power of the microwave to charge the mobile phones
without the use of wired chargers.
Thus this method provides great advantage to the mobile
phone users to carry their phones anywhere even if the place is
devoid of facilities for charging.