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Introduction To Witricity

Mohamed amin

on 6 May 2015

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Transcript of Witricity

Heinrich Hertz and Nicolai Tesla theorized the possibility of wireless power transmission.
Effect On Human Bodies
1.Human Body Resistance.
Ways of Transmission :
Advantages and Disadvantages
Ways of Transmission : Far
Direct wireless power
Automatic wireless charg.
1.consumer electronics
2. Automotive
Capacitive Coupling
1.What is Witricity ?
2.History Of Witricity
4.Ways Of Transmission
6.Effect On Human Body
7.Adv. and Dis.
1.No need of power cables and batteries.
2.Does not interfere with radio waves.
3.Wastage of power is small.
4.Highly efficient than electromagnetic induction.
5.maintenance cost is less
6.The components of transmitter and receivers are cheaper. So this system is less costly.
1.Wireless power transmission can be possible only in few meters.
2.Efficiency is only about 40% and decrease with distance.
3.For long range The installation cost is high.
2.Determination Of Any Person's Total Resistance .
3.The Human Body Is Remarkably Adaptable !!
4.Effect Of Low Wireless Electricity Power Transmission.
5.Effect Of High Wireless Electricity Power Transmission.
6.Nicola Tesla Experiment.
[1] Nicola Tesla, “The transmission of electrical energy without wires”.

[2] William C. Brown, “The history of power transmission by radio waves”.

[3] World Health Organization, “Electromagnetic fields and public health”.

[4] Farouk Balouchi and Bob Gohn, “Wireless Power: Mobile Devices, Consumer Electronics,
Industrial Devices, Wireless Power Infrastructure, and Wireless Charging of Electric
Vehicles: Technology Analysis, Environmental Impact, and Market Forecasts”.

[5] A.B. Kurs, A. Karalis, R. Moffatt, J.D. Joannopoulos, P.H. Fisher, and M. Soljacic, “Wireless
Power Transfer via Strongly Coupled Magnetic Resonances”.

What is wireless Energy Transfer ?
Renewable energy with Witricity.
Wireless energy transfer or wireless power transmission is the transmittance of electrical energy from a power source to an electrical load without interconnecting wires.
Tesla demonstrated it by powering fluorescent lamps without using wires.
The Wardenclyffe tower was designed by Tesla for wireless transmission of electrical power rather than telegraphy.
William C. Brown Brown invented the rectenna which directly converts microwaves to DC current.
Brown demonstrated its ability by powering a helicopter through microwaves.
Brown (Raytheon) and James F. Trimer (NASA) announced the development of a thin-film plastic rectenna using printed-circuit technology that weighed only one-tenth as much as any previous rectenna .
A physics research group at the Massachusetts Institute of technology (MIT) Demonstrated wireless powering.
Capacitive coupling
What Is The Theory Of Capacitor ?
High Frequencies
1.cons. electronics
Resonance Phenomenon
Resonant Inductive Coupling
Resonance : Property of systems to oscillate with larger amplitudes at particular frequencies known as resonant frequencies than at others.
Uses almost the same concept as Inductive coupling just that the coils operate at resonant frequency leading to efficient transfer of energy over a larger distance.

Mas3oudy Team
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