29-03-2011, 10:59 AM
Submiited By
A.Murali Krishna
WiTricity.ppt (Size: 1.03 MB / Downloads: 229)
Introduction
Wireless+Electricity=WiTricity.
Transmission of Electrical energy from one object to another object without use of wires is called WiTricity.
Witricity is based on strong coupling between electromagnetic resonant objects to transfer energy wirelessly between them.
Past &Present
Nikola Tesla(1856-1943) has done the Wireless power transmission experiments at Wardenclyffe
In 18 99 he transmitted power wirelessly.
High frequency current, of a Tesla coil, could light lamps filled with gas (like neon)
The MIT researchers successfully demonstrated the ability to power a 60 watt light bulb wirelessly,
(Distance of 7 feet) under the guidance of Marin Soljacic.
Working of Electric Tooth Brush
Electric tooth brush contains 1 coil and a battery.
One coil is in the charger .
Splashpower Recharging Mat
Example For Resonance
Copper coil
Wireless power transfer
MIT EXPERIMENT
two 5-turn copper coils of 60 cm (24 in) diameter,
Distance Between The Coils :7 Feet(2 M)
Load :60watt Bulb.
Efficiancy:45%
Resonant frequency : 9.9 MHz
Transfer of energy from Moon to Earth
Solar power from the satellite is sent to Earth using a microwave transmitter
Received at a “rectenna” located on Earth
A.Murali Krishna
WiTricity.ppt (Size: 1.03 MB / Downloads: 229)
Introduction
Wireless+Electricity=WiTricity.
Transmission of Electrical energy from one object to another object without use of wires is called WiTricity.
Witricity is based on strong coupling between electromagnetic resonant objects to transfer energy wirelessly between them.
Past &Present
Nikola Tesla(1856-1943) has done the Wireless power transmission experiments at Wardenclyffe
In 18 99 he transmitted power wirelessly.
High frequency current, of a Tesla coil, could light lamps filled with gas (like neon)
The MIT researchers successfully demonstrated the ability to power a 60 watt light bulb wirelessly,
(Distance of 7 feet) under the guidance of Marin Soljacic.
Working of Electric Tooth Brush
Electric tooth brush contains 1 coil and a battery.
One coil is in the charger .
Splashpower Recharging Mat
Example For Resonance
Copper coil
Wireless power transfer
MIT EXPERIMENT
two 5-turn copper coils of 60 cm (24 in) diameter,
Distance Between The Coils :7 Feet(2 M)
Load :60watt Bulb.
Efficiancy:45%
Resonant frequency : 9.9 MHz
Transfer of energy from Moon to Earth
Solar power from the satellite is sent to Earth using a microwave transmitter
Received at a “rectenna” located on Earth