wireless charging of mobile phones using microwave
-
Upload
ramana-sree -
Category
Education
-
view
112 -
download
15
Transcript of wireless charging of mobile phones using microwave
INTRODUCTION
MICROWAVE REGION
BLOCK DIAGRAM
TRANSMITTER DESIGN
RECEIVER DESIGN
IMPLEMENTATION
ADVANTAGES
DISADVANTAGES
FUTURE SCOPE
CONCLUSION
Mobile phones becoming basic part of life
Recharging of mobile phones is a big problem
Objective—to recharge any mobile phone independent of
manufacturer and battery make
Achieved by recharging battery while talking using
microwaves
Microwaves are good for transmitting information from one place to another
It is because microwave energy can penetrate rain and snow, clouds, and smoke
MAGNETRON
It is a self-contained microwave
oscillator that operates different
from linear oscillator.
Cross field and magnetic field are
used to produce high-power
output.
It is used as ideal power transmitter (because of its high
aperture efficiency >95%) .
It has high power handling capacity .
It has 64 slots of power uniformly through free space to the
rectenna
The basic addition to the
mobile phone is going to be the
rectenna and sensor
Rectenna = Rectifier +
Antenna.
A rectifying antenna called a
rectenna receives the
transmitted power and converts
the microwave power to direct
current (DC) power.
LM2907-a simple F to V converter used as it operates
specified range .
To trigger the rectenna circuit to ON and the mobile begins
to charge using the microwave power automatically.
This is required, as the phone has to be charged as long as
the user is talking.
Recently NOKIA has launched this wireless charging
technology in its new recent mobile model “NOKIA
LUMIA1020”.
Energy efficient charges of all size and shape to match our
phone.
There are all quiet compactable, which means we can use
any charges are like.
One can carry their mobile phones any place to a remote
villages.
The use of wired charges are eliminated.
Electricity can be saved.
The more you talk more you get charged.
Wireless transmission of the energy causes some effects to
human body, because of its radiation.
Network traffic may cause problems in charging.
Charging depends on network coverage.
Process is high cost
In future RECTENNA is used to produce large-scale
power from microwaves beam.
This technology is also applicable for electronic gadgets
which works on batteries and thus save electricity.
Currently researches are going on, to implement this
technology for laptops.
A novel use of RECTENNA and a SANSOR in mobile
phone could provide a new dimension in the revelation of
mobile phones.
Thus a great advantage is to carry their mobile phones to
any place is devoid of facilities for charging.
www.slideshare.com
www.wikipedia.org
www.seminarsonly.com
Theodore .S.Rappaport, “Wireless communications
principles and practice”.