Wireless
Transmission of
Power
Presented by :Asim Sagheer
Anum Khan
Sumaira Sagheer

WiTricity
Contents
What

is WiTricity
Background
Working Principle
Is it secure ???
Applications
Limitations
What is WiTricity?
 Stands

for ‘wireless electricity’
 Eliminates the use of cables for
transmission of power
 Transmi...
(1/2)

Background
 In

1899, Sir Nikola
Tesla enlighten 200
lamps at the distance of
40 km.
 But only 15%
efficiency was...
(2/2)



MIT powered 60 watt
light bulb from 2 meters
(7 ft) at 40% efficiency

 First

practical example
of WiTricity.
(1/1)

Working Principle
 One

Simple Physics Rule !
 At Source : Electricity
Magnetic Wave
 At Device : Magnetic Wave
...
(1/1)

Is it secure ???
 Works

on the principle of magnetic
induction.
 Interact weakly with surrounding objects
(biolo...
(1/5)

Applications
 Automatic

electronics

wireless charging of mobile
(2/5)

 Direct

wireless powering of stationary devices

Sony demonstrated its
wirelessly powered
television
[2010 Octobe...
(3/5)

 Direct

wireless powering of PC peripherals
(4/5)

 Automatic

wireless charging for electric vehicles
(5/5)

One source is able to transfer the energy for the
electronic devices.
Limitations
 It

is a midrange technology.
(max 7.5 m)
 The maximum efficiency obtained in full
ideal conditions is 95% ...
Bibliography :
 www.witricity.com

[18feb2012]
 www.witricitypower.com [18feb2012]
 www.tfcbooks.com [19feb2012]
Thank you !
Queries ???
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Introduction to Witricity (Wireless power transfer)

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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.

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Introduction to Witricity (Wireless power transfer)

  1. 1. Wireless Transmission of Power Presented by :Asim Sagheer Anum Khan Sumaira Sagheer WiTricity
  2. 2. Contents What is WiTricity Background Working Principle Is it secure ??? Applications Limitations
  3. 3. What is WiTricity?  Stands for ‘wireless electricity’  Eliminates the use of cables for transmission of power  Transmission by induction through resonators.  Security
  4. 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. 5. (2/2)  MIT powered 60 watt light bulb from 2 meters (7 ft) at 40% efficiency  First practical example of WiTricity.
  6. 6. (1/1) Working Principle  One Simple Physics Rule !  At Source : Electricity Magnetic Wave  At Device : Magnetic Wave Electricity  Resonant coupling
  7. 7. (1/1) Is it secure ???  Works on the principle of magnetic induction.  Interact weakly with surrounding objects (biological tissue)
  8. 8. (1/5) Applications  Automatic electronics wireless charging of mobile
  9. 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
  10. 10. (3/5)  Direct wireless powering of PC peripherals
  11. 11. (4/5)  Automatic wireless charging for electric vehicles
  12. 12. (5/5) One source is able to transfer the energy for the electronic devices.
  13. 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.
  14. 14. Bibliography :  www.witricity.com [18feb2012]  www.witricitypower.com [18feb2012]  www.tfcbooks.com [19feb2012]
  15. 15. Thank you !
  16. 16. Queries ???
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