Wi tricity
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Transcript of Wi tricity
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WITRICITY
Y.AMRUTH SANJEEV REDDY 11W51A0250 T.HARI PRASAD 11W51AO245
ELECTRICAL AND ELECTRONICS ENGINEERING
SVTM
Presented by
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OUTLINE
What is witricity ? background working principle Need of witricity is witricity secure ? ease of witricity advantages obstructions future of witricity
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WHAT IS WITRICITY ?
“The transfer of electricity from one place to other without using wires ” is Known as Witricity.
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BACKGROUND
• Nikola Tesla – The Genius
He did enlighten 200 lamps at the distance of 40 km, wirelessly.
• But only 15% of efficiency was achieved.
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Reborn of witricity
• In 2007,MIT powered 60 watt light bulb from 2mts(7fts) at 40% efficiency
• Forgotten invention was reborn in 2007
• Prof. Soljacic – Another Genius MIT-IBM Collaboration
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WORKING PRINCIPLE Works under mutual induction
.
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Types of wireless energy transfer
There are 3 major types of wireless energy transfer:
• Short range : Inductive Coupling
• Medium range: Resonant Induction
• Long range : Electromagnetic Wave power transfer
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How wireless power works
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NEED OF WITRICITY
Cell phones, IPod, laptop computers are capable of re-charging themselves without ever being plugged in.
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IS WITRICITY SECURE?
Principle is based on Magnetic Waves.
The question is if Magnetic Waves Secure ?
The answer is we all live in a globe that has already surrounded by magnetic waves.
Yes it is secure
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EASE OF WITRICITY
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ADVANTAGES
Getting rid of great deal with cables.
Places where we cannot have physical cables.
Safe, fairly, efficient and good range.
Theoretically one stationary coil in a room could supply power to multiple devices at receiving coil.
Power can be delivered in any direction.
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Obstructions
Walls and furniture can be penetrated through by Witricity.
Only obstructions are metal structures like metal doors and metal walls.
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USAGE AREAS
ELECTRICAL CARS
MOBILE PHONES
COMPUTERS
TELEVISIONS
ANY ELECTRICAL CONSUMING DEVICE
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DEMO
• Sony demonstrated its wirelessly powered television.[2010 October]
• Demonstration of Witricity on cellphone and LCD at the TED conference.
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FUTURE WITRICITY
Think that the city will be covered with Witricity hot spots , just like Wireless Internet, there will be no need of charging batteries, or carrying adapters all around !
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THANK YOU…… Queries please