WITRICITY

Y.AMRUTH SANJEEV REDDY 11W51A0250 T.HARI PRASAD 11W51AO245

ELECTRICAL AND ELECTRONICS ENGINEERING

SVTM

Presented by

OUTLINE

What is witricity ? background working principle Need of witricity is witricity secure ? ease of witricity advantages obstructions future of witricity

WHAT IS WITRICITY ?

“The transfer of electricity from one place to other without using wires ” is Known as Witricity.

BACKGROUND

• Nikola Tesla – The Genius

He did enlighten 200 lamps at the distance of 40 km, wirelessly.

• But only 15% of efficiency was achieved.

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

WORKING PRINCIPLE Works under mutual induction

.

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

How wireless power works

NEED OF WITRICITY

Cell phones, IPod, laptop computers are capable of re-charging themselves without ever being plugged in.

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

EASE OF WITRICITY

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.

Obstructions

Walls and furniture can be penetrated through by Witricity.

Only obstructions are metal structures like metal doors and metal walls.

USAGE AREAS

ELECTRICAL CARS

MOBILE PHONES

COMPUTERS

TELEVISIONS

ANY ELECTRICAL CONSUMING DEVICE

DEMO

• Sony demonstrated its wirelessly powered television.[2010 October]

• Demonstration of Witricity on cellphone and LCD at the TED conference.

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 !

THANK YOU…… Queries please