introduction to witricity (wireless power transfer)
DESCRIPTION
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.TRANSCRIPT
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WiTricityWireless Transmission of
Power
Presented by :- Asim Sagheer
Anum Khan
Sumaira Sagheer
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Contents What is WiTricity BackgroundWorking PrincipleIs it secure ???ApplicationsLimitations
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Stands for ‘wireless electricity’Eliminates the use of cables for
transmission of powerTransmission by induction through
resonators.Security
What is WiTricity?
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In 1899, Sir Nikola Tesla enlighten 200 lamps at the distance of 40 km.
But only 15% efficiency was achieved.
Background
(1/2)
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MIT powered 60 watt light bulb from 2 meters (7 ft) at 40% efficiency
First practical example
of WiTricity.
(2/2)
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Working Principle One Simple Physics Rule !At Source : Electricity Magnetic Wave At Device : Magnetic Wave ElectricityResonant coupling
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Is it secure ???Works on the principle of magnetic
induction.Interact weakly with surrounding objects
(biological tissue)
(1/1)
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Applications
Automatic wireless charging of mobile electronics
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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
(2/5)
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Direct wireless powering of PC peripherals
(3/5)
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Automatic wireless charging for electric vehicles
(4/5)
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One source is able to transfer the energy for the electronic devices.
(5/5)
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LimitationsIt 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.
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Bibliography :
www.witricity.com [18feb2012] www.witricitypower.com [18feb2012] www.tfcbooks.com [19feb2012]
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Thank you !
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Queries ???