WIRELESS CHARGING OF MOBILE PHONES USING MICROWAVE BY PRIYANKA V 1 ST SEM ,E & C , Mtech PONDICHERRY UNIVERSITY
WIRELESS CHARGING OF MOBILE PHONES USING MICROWAVE
BYPRIYANKA V1ST SEM ,E & C , MtechPONDICHERRY UNIVERSITY
INTRODUCTION MICROWAVE REGION BLOCK DIAGRAM TRANSMITTER DESIGN RECEIVER DESIGN IMPLEMENTATION ADVANTAGES DISADVANTAGES FUTURE SCOPE CONCLUSION
WIRELESS CHARGING
• 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
INTRODUCTION
MICROWAVE REGION
• Microwaves are good for transmitting information from one place to another• It is because microwave energy can penetrate rain and snow, clouds, and smoke
BLOCK DIAGRAM
TRANSMITTER DESIGN
• 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
SLOTTED ANTENNA
• 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
RECEIVER DESIGN
• 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.
SENSOR
• 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.
IMPLEMENTATION
• NOKIA,SAMSUNG,APPLE has launched this wireless charging technology in its new recent mobile model .
• 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.
ADVANTAGES
• 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.
DISADVANTAGES
• 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
FUTURE SCOPE
• 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.
CONCLUSION
• 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.
REFERENCE
• www.slideshare.com• www.wikipedia.org • www.seminarsonly.com • Theodore .S.Rappaport, “Wireless
communications principles and practice”.