- Witricity refers to the ability to transmit electrical energy wirelessly through magnetic field resonance. - The document discusses the history of wireless electricity from Nikola Tesla's initial proposals in 1891 to current research at MIT. - It describes how witricity works using magnetic coils that resonate to transmit power from a source to a receiver without wires. - Potential applications include wireless charging of devices, electric vehicles, and creating wire-free power in homes and "smart cities." The document reviews both the advantages of eliminating wires and batteries and some disadvantages like initial cost and safety constraints.

1. WITRICITY
A world without wires
WELCOME

2. PRESENTATION ON THE
TOPIC
WIRELESS ELECTRICITY -
“ WITRICITY”
Under the guidence of –
Mr. RAVI SINGH
H.O.D
Computer science & Engineering
Presented by –
SAUMYA SINGH CHAUHAN
B.Tech (Final Year)
Computer Science &
Engineering

3. IN THIS PRESENTAION –
TOPICS MUST BE INCLUDED
1. INTRODUCTION
2. WHAT IS WITRICITY ?
3. NEED OF WITRICITY
4. HISTORY OF WIRELESS ELECTRICITY
5. HOW IT WORKS
6. Present technology
7. FUTURE SCOPE OF WITRICITY
8. APPLICATION OF WITRICITY
9. ADVANTAGES OF WITRICITY
10. DISADVANTAGES OF WITRICITY
11. CONCLUSION

4.  The word Witricityderived
from two words Wireless and
Electricity.
 In 1891, Sir Nikola Tesla
proposed a method of
wireless power for transmission. But it
was in radiative mode so,
most of the power wasted
during the transmission.
Introduction

5. What is witricity?
The term WiTricity is defined as the ability to
provide electrical energy to remote object without
wires using oscillating magnetic fields.

8. Need Of WiTricity
 The ever increasing power
demand.
 The demand of Eco-friendly
power.
 Requirement of efficient and
reliable power.
 To reduce dependence on
wires and batteries.
 To overcome the problem of
power loss during
transmission.

9.  1891 :- Sir Nikola Tesla proposed a
method of wireless transmission
of Electric Power.
 1899:- Nikola Tesla managed to
light 200 lamps from a distance
of 40km.
 1961 :- William C. Brown publishes
an article exploring possibilities
of microwave power
transmission.
HISTORY OF WIRELESS
ELECTRICITY

10. CONTINUATION…….
 2009:- Sony Shows a wireless
electrodynamics-induction
powered TV set, 60W over 50 cm.
At present time:-
“ A GROUP OF ENGINEERSAT MITCAMEUP
WITHTHEIDEATO USE RESONANT
INDUCTIONTO TRANSMITPOWER
WIRELESSLY.”

11. How It Works
 Magnets coil is housed in a
box and can be set in box and
can be set in a wall or ceiling.
 Antenna is powered by mains
whish resonates at a
particular frequency.
 Electromagnetic waves are
transmitted through the air .
 Second magnetic coil,antenna
fitted in laptop or TV
resonates with the same
frequency as first coil and
absorbs energy.
 Energy charges the battery.

13. Witricity

14. Wirelesscharger

15. Automatic car charging technology

16. Witricity

17. Future of witricityk;

18. Future scope of wireless power transfer
technology through satelllite

19. Applications
 Wireless charging of portable device using
inductive coupling
 Wireless power transmission used in medical
field
 Wireless charging using electronic vehicle
 Wireless charging in public bus
 Wireless charging of electric vehicle on the
way
 Wireless charging lane for self driven electric
vehicles
 Wireless power in home appliances
 Wireless technology make a smart city

20. Wireless charging of portable device using inductive
coupling

21. Wireless power transmission in medical field

22. Wireless charging of electric vehicle

23. Wireless charging in public bus

24. Wireless charging of electric vehicle on the way

25. Wireless charging lane for self driven electric vehicles

26. Wireless power in home appliances

27. Wireless technology make a smart city

28. In emergency communication throughwireless power
source

29. Advantages
• No-wires
• No e-waste
• Efficient & Reliable
power
• Need for battery is
eliminated.
• Creation of a shock free
environment.
• Maintenance cost is

30. • Distance constraints
• Field strength have to
be under safety levels.
• Initial cost is high.
• Air ionization
techniques is not
feasible.
• High frequency must
be the supply.
Disadvantages

31.  The transmission power without
wires is not a theory or a more
possibility, it is now a reality.
 The electrical energy can be
economically transmitted without
wires to any torrestrial distance.
 The system would reduce the cost
of electrical energy used by a
consumer and get rid of fbe
landscape of wires, cables &
transmission towers.
 It has negligible demerits like
reactive power which was found
insignificant & biologically
compatible.
Conclusion

32. Thankyou