This paper gives an introduction about Witricity technology. Witricity stands for wireless electricity. It uses the principle of mutual inductance for wireless power transfer.
This is an interesting technology and has wide applications.
3. What is WiTricity?
Stands
for ‘wireless electricity’
Eliminates the use of cables for
transmission of power
Transmission by induction through
resonators.
Security
4. (1/2)
Background
In
1899, Sir Nikola
Tesla enlighten 200
lamps at the distance of
40 km.
But only 15%
efficiency was
achieved.
5. (2/2)
MIT powered 60 watt
light bulb from 2 meters
(7 ft) at 40% efficiency
First
practical example
of WiTricity.
6. (1/1)
Working Principle
One
Simple Physics Rule !
At Source : Electricity
Magnetic Wave
At Device : Magnetic Wave
Electricity
Resonant coupling
7. (1/1)
Is it secure ???
Works
on the principle of magnetic
induction.
Interact weakly with surrounding objects
(biological tissue)
9. (2/5)
Direct
wireless powering of stationary devices
Sony demonstrated its
wirelessly powered
television
[2010 October]
Demonstration of WiTricity on cell
phone and LCD at the TED conference
13. Limitations
It
is a midrange technology.
(max 7.5 m)
The maximum efficiency obtained in full
ideal conditions is 95% .
Only obstructions are metal structures like
metal doors and metal walls.