Deep witicity1

D
Deep Khannafun in friends company
Presentation On: 
Witricity 
(wireless electricity) 
Presented By: 
Deep Khanna 
11/FET/EC/1107 
Electronics & Telecomm. Engg.
WITRICITY
OUTLINE 
History of Witricity 
What is witricity 
Need of witricity 
Working principle of witricity 
Advantages 
Limitations 
Safety 
Range of witricity 
Block diagram of Witricity 
Usage areas 
World in future
HISTORY OF WITRICITY 
Originally demonstrated in 1964 on CBS using model 
helicopter 
1969-1975 30 kW over 1 mile at 84% efficiency
Nikola Tesla – The Genius 
He did enlighten 200 lamps at the distance of 
40 km, 
Wirelessly !
Prof. Soljacic – Another Genius 
MIT-IBM Collaboration 
He did succeed to redesign Tesla’s experiment in 
safer way.
WWhhaatt iiss WWiittrriicciittyy?? 
 Transfer of electricity without using connections 
between input and load is termed as wireless 
electricity. 
 This is not like wireless transmission of signals 
which we used in the cell phones. 
 In cell phones signals are sent in the form of micro 
waves whereas in this mode of transition electricity 
is transferred in the form of magnetic rays. 
These rays are not harmful to humans. 
 The transfer of energy is mid range compared to 
direct transmission.
Need of Witricity 
 Now-a-days there is a rapid increase of electronic goods like cell 
phones ,laptops ,I-pods etc., which rely on the chemical storage of 
energy by the battery which need to be recharged frequently . 
 As these are becoming daily needs to the presents energy transfer 
i.e, witricity would be useful for many applications as these things 
need mid range energy.
Technique To Transfer 
• One Simple Physics Rule ! 
• At Source : Electricity => Magnetic Wave 
• At Device : Magnetic Wave => Electricity 
9
Working principle of Witricity 
Witricity works on the principle of mutual induction between the two 
coils. 
There are two copper coils arranged one at the sender end and other at the 
receiver end .The first coil is attached to the power source while the 
second coil to the light bulb. 
When the power is switched on the first coil converts the electricity into 
magnetic field ,which is oscillating at a particular frequency i.e, AC 
source. 
The second coil at the receiver end converts the magnetic field into 
electricity .The surrounding environment is unaffected.
Projecting magnetic field 
Magnetic vector notation 
dB=udH 
Induced EMF due to change in flux 
___ ___
Advantages 
 An advantage is that we can produce electricity anywhere without 
wires 
 The power can be delivered in any direction i.e, omnidirectional 
 Most common things in our surroundings do not interact with these 
magnetic fields and thus not harmful to other living beings 
 Significant decluttering of office space 
 No need for meter rooms and electrical closets. 
 Reduction of e-waste by eliminating the need for power cords 
 Need more light in your office, no need for electrician. Simply place 
the lamp where ever you need it.
Limitations 
The flux condition should satisfy certain conditions,if not no power 
supply takes place. 
There is a lose of power transmission if there is a strong ferro-magnetic 
substance. 
Need for standardization and adaptation. So no overheating occurs 
because of different voltages. 
Retrofitting old equipment or purchasing new equipment could 
become a very expensive endeavor. 
Possibility of “energy theft”. Wi Fi, someone can be using your 
internet or your power.
Safety 
 Any living organisms that are placed in between the two coils(transmitter 
&emitter) will not halt or hinder the transmission of magnetic field. 
 It is because the magnetic rays will not interact with the living tissues so strong 
and can be easily passed through the humans or other living organisms.
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 
15
Deep witicity1
USAGE AREAS 
• Electric Cars 
• Medical 
• Mobile Phones 
• Computers 
• Televisions 
• Any consumer electronics that needs electricity 
17
World in our future
1 de 18

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Deep witicity1

  • 1. Presentation On: Witricity (wireless electricity) Presented By: Deep Khanna 11/FET/EC/1107 Electronics & Telecomm. Engg.
  • 3. OUTLINE History of Witricity What is witricity Need of witricity Working principle of witricity Advantages Limitations Safety Range of witricity Block diagram of Witricity Usage areas World in future
  • 4. HISTORY OF WITRICITY Originally demonstrated in 1964 on CBS using model helicopter 1969-1975 30 kW over 1 mile at 84% efficiency
  • 5. Nikola Tesla – The Genius He did enlighten 200 lamps at the distance of 40 km, Wirelessly !
  • 6. Prof. Soljacic – Another Genius MIT-IBM Collaboration He did succeed to redesign Tesla’s experiment in safer way.
  • 7. WWhhaatt iiss WWiittrriicciittyy??  Transfer of electricity without using connections between input and load is termed as wireless electricity.  This is not like wireless transmission of signals which we used in the cell phones.  In cell phones signals are sent in the form of micro waves whereas in this mode of transition electricity is transferred in the form of magnetic rays. These rays are not harmful to humans.  The transfer of energy is mid range compared to direct transmission.
  • 8. Need of Witricity  Now-a-days there is a rapid increase of electronic goods like cell phones ,laptops ,I-pods etc., which rely on the chemical storage of energy by the battery which need to be recharged frequently .  As these are becoming daily needs to the presents energy transfer i.e, witricity would be useful for many applications as these things need mid range energy.
  • 9. Technique To Transfer • One Simple Physics Rule ! • At Source : Electricity => Magnetic Wave • At Device : Magnetic Wave => Electricity 9
  • 10. Working principle of Witricity Witricity works on the principle of mutual induction between the two coils. There are two copper coils arranged one at the sender end and other at the receiver end .The first coil is attached to the power source while the second coil to the light bulb. When the power is switched on the first coil converts the electricity into magnetic field ,which is oscillating at a particular frequency i.e, AC source. The second coil at the receiver end converts the magnetic field into electricity .The surrounding environment is unaffected.
  • 11. Projecting magnetic field Magnetic vector notation dB=udH Induced EMF due to change in flux ___ ___
  • 12. Advantages  An advantage is that we can produce electricity anywhere without wires  The power can be delivered in any direction i.e, omnidirectional  Most common things in our surroundings do not interact with these magnetic fields and thus not harmful to other living beings  Significant decluttering of office space  No need for meter rooms and electrical closets.  Reduction of e-waste by eliminating the need for power cords  Need more light in your office, no need for electrician. Simply place the lamp where ever you need it.
  • 13. Limitations The flux condition should satisfy certain conditions,if not no power supply takes place. There is a lose of power transmission if there is a strong ferro-magnetic substance. Need for standardization and adaptation. So no overheating occurs because of different voltages. Retrofitting old equipment or purchasing new equipment could become a very expensive endeavor. Possibility of “energy theft”. Wi Fi, someone can be using your internet or your power.
  • 14. Safety  Any living organisms that are placed in between the two coils(transmitter &emitter) will not halt or hinder the transmission of magnetic field.  It is because the magnetic rays will not interact with the living tissues so strong and can be easily passed through the humans or other living organisms.
  • 15. 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 15
  • 17. USAGE AREAS • Electric Cars • Medical • Mobile Phones • Computers • Televisions • Any consumer electronics that needs electricity 17
  • 18. World in our future