Introduction to Witricity (Wireless power transfer)
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Witricity, short for 'wireless electricity', enables power transmission without cables using induction through resonators, achieving efficiencies up to 95% under ideal conditions. Historical developments include Tesla's 1899 demonstration and MIT's recent practical applications, such as wireless charging for electronics and vehicles. Limitations include a maximum range of 7.5 meters and interference from metal structures.
![(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](https://image.slidesharecdn.com/originalwitricityppt-131129142129-phpapp02/85/Introduction-to-Witricity-Wireless-power-transfer-9-320.jpg)
![Bibliography :
www.witricity.com
[18feb2012]
www.witricitypower.com [18feb2012]
www.tfcbooks.com [19feb2012]](https://image.slidesharecdn.com/originalwitricityppt-131129142129-phpapp02/85/Introduction-to-Witricity-Wireless-power-transfer-14-320.jpg)
Introduction to Witricity (Wireless power transfer)
- 1. Wireless Transmission of Power Presented by :Asim Sagheer Anum Khan Sumaira Sagheer WiTricity
- 2. Contents What is WiTricity Background Working Principle Is it secure ??? Applications Limitations
- 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
- 10. (3/5) Direct wireless powering of PC peripherals
- 11. (4/5) Automatic wireless charging for electric vehicles
- 12. (5/5) One source is able to transfer the energy for the electronic devices.
- 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. Bibliography : www.witricity.com [18feb2012] www.witricitypower.com [18feb2012] www.tfcbooks.com [19feb2012]
- 15. Thank you !
- 16. Queries ???