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This ppt describes about what is witricity,evolution of this technology,its applications,advantages,future etc...

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  2. 2. OutlineIntroductionWhat is WiTricity ?BackgroundTechnique to transferHow wireless power worksFeatures &benefitsAdvantagesIs WiTricity secure ?Safety concernsRange of WiTricityRidiculous technologyUsage AreasFuture of WiTricity 2
  3. 3. Normally, we pictureelectric devices with wires.For example, laptop, cellphone, lamp etc.Remember every time youtravel or at home, you needto pack all the adaptersand chargers for yourdevices. It’s unpractical,isn’t it. The solution is near.
  4. 4. What is Wi-Tricity ? Transmission of energy through the air. Process of transferring electric energy or power overdistance without wires. Wi-Tricity, a portmanteau for "wireless electricity", is a trademarkof WiTricity corporation referring to their devices and processeswhich use a form of wireless energy transfer including resonantenergy transfer etc., the ability to provide electrical energy toremote objects without wires using oscillating magnetic fields. 4
  5. 5. Background Nikola Tesla – The Genius He did enlighten 200 lamps at the distance of 40 km, Wirelessly ! 5
  6. 6. Prof. Soljacic – Another GeniusMIT-IBM CollaborationHe did succeed to redesignTesla’s experiment in safer way. 6
  7. 7. Technique To TransferOne Simple Physics Rule !At Source : Electricity => Magnetic WaveAt Device : Magnetic Wave => Electricity 7
  8. 8. HOW WIRELESS POWER WORKS 1. Magnetic coil (Antenna A) is housed in a box and can be set in wall or ceiling. 2. Antenna A, powered by mains, resonates at a specific frequency. 3. Electromagnetic waves transmitted through the air. 4. Second magnetic coil (Antenna B) fitted in laptop/TV etc resonates at same frequency as first coil and absorbs energy. 5. Energy charges the device. 8
  9. 9. 9
  10. 10. FEATURES & BENEFITS WITRICITY’S TECHNOLOGY TECHNOLOGY BENEFIT Highly Resonant Strong Coupling High Efficiency over Distance Energy Transfer via Magnetic Near Field Penetrates and Wraps- Around Obstacles Non-Radiative Energy Transfer Safe for People and Animals Scalable Design From Milliwatts to Kilowatts Flexible Geometry Devices That Can Fit Into OEM Products 10
  11. 11. Advantages Getting rid of great deal of cables ! More secure, no risk of getting shocked. Places where you can not have physical cable, solution WiTricity 11
  12. 12. WiTricity technology will make products: More Convenient:  No manual recharging or changing batteries.  Eliminate unsightly, unwieldy and costly power cords. More Reliable:  Never run out of battery power.  Reduce product failure rates by fixing the ‘weakest link’: flexing wiring and mechanical interconnects. More Environmentally Friendly:  Reduce use of disposable batteries.  Use efficient electric ‘grid power’ directly instead of inefficient battery charging. 12
  13. 13. Is WiTricity Secure ? Yes it is secure ! Principle of witricity is based on oscillating Magnetic fields. We too live in a globe that is already surrounded by magnetic waves. 13
  14. 14. Magnetic fields interact very weakly with biological organisms.It uses a "non– radioactive mode of energy transfer. 14
  15. 15. SAFETY CONCERNSIn the “far-field”, a transmitter would emit mixture of magnetic and potentially dangerous electric fields. But, crucially, at a distance of less than one wavelength - the "near field" - it is almost entirely magnetic.Hence, Witricity uses low frequency electromagnetic waves, whose waves are about 30m (100ft) long. 15
  16. 16. Range Of WiTricityWiTricity can perform electric transmission 2 cm to 3-4 meters.Scientists are working on extending this rangeRegarding efficiency – With development done by MIT-IBM efficiency raised to around %90 - %95 16
  17. 17. “Ridiculous technology”Witricity is not the first jump on the concept of wireless electricity.Today, chip-giant Intel has seized on a similar idea to Witricitys , whilst other companies work on highly directional mechanisms of energy transfer, such as lasers.However, unlike Witricitys work, lasers require an uninterrupted line of sight, and are therefore not good for powering objects around the home."You go from the sublime to the ridiculous“. 17
  18. 18. Usage AreasElectric CarsMedicalMobile PhonesComputersTelevisionsAny consumer electronics that needs electricity 18
  19. 19. Demo 1 One source is able to transfer the energy for the electronic devices. 19
  20. 20. Demo 2 The main idea is that the two resonant object are at the same resonant frequency. They tend to exchange energy efficiently without interrupting other object with different frequency.Aj. Roppon sings a song withsame frequency as red wine glass Different Frequency 20
  21. 21. So, the glass of the corresponding frequency to Aj. Roppon’s voice accumulate sufficient energy to explode. Different Frequency 21
  22. 22. Demo 3 Sony demonstrated its Demonstration of WiTricity wirelessly powered on cellphone and LCD at television .[2010 the TED conference. October] 22
  23. 23. Demo 4 Batteries can be charged , it is just enough to place the device to top of one of these surfaces. CLICK HERE 23
  24. 24. Demo 5 Charging Electric Car using WiTricity. 24
  25. 25. Future of 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 ! If we apply this idea to the whole city, we might not have to use anywired cable. Moreover, in the future, it would save the material cost, and “WE CAN SAVE THE WORLD, YEAH!!!” 25
  26. 26. Thanks For Listening Any Questions ? 26