wireless electricity ]

8/7/2019 wireless electricity ]

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Wireless Electricity

Groups 3 & 4

Rocio Aguilera Jenine Bluett

Jon Alcala Lawrence Cushion

Monica Borowiak Jacalyn Kastigar

Heather Madsen Justin Kuryliw

Jeremy Peterson John Morse

Kristina Polidoro Joseph Nowacki

Crystal Snow Fadima Sidibe



What Is Wireless Electricity?

� Produce power without the use of wires or cords ² just

like a power outlet

� Place your electronic device that you want to charge in aspecific room or on a surface to charge it wirelessly

� WiTricity - short for wireless electricity

� Key: Resonance

� Ex. Glass shatters from sound that hits a certain pitch

� Resonant frequencies must match (sound glass makes to

pitch of sound hitting the glass)

� When resonant frequencies match, glass will absorb sound

and crack



What Is Wireless Electricity?

� Magnetic Induction (from Answers.com)

� The production of an electromotive force through:

² Motion of a conductor through a magnetic field so as tocut across the magnetic flux

² By a change in the magnetic flux that threads a

conductor

� Magnetic induction + 2 identical copper cords that

resonate at the same frequency = MIT (MassachusettsInstitute of Technology) Scientists making WiTricity

� Powered 60-watt light bulb from power source 7ft away



V

ideo Example



PROs

� Less accidents and instances of electrocution

� Convenient to consumers who use products that can be charged

through WiTricity

� Could eliminate the need for an inefficient, costly, and capital

intensive grid of cables, towers and substations

� Gateway to other breakthrough technological advances

� Eliminate mess of cords and power strips used to charge products

� Your home would keep your gadgets constantly powered up

� Could eliminate batteries

� Magnetic fields have little affect on biological organisms ² but still

needs more testing



CONs

� Products we use on the go would still need batteries

� Could be like Wi-Fi: free in some places and fees in others

� Electrical pollution

� Associated with illnesses such as, cardiac problems, learning

disabilities, mood disorders, and fatigue

� Electromagnetic radiation

� Associated with childhood and adult leukemia, breast cancer,

clinical depression, and miscarriage

� Uncertain affect on medical equipment, such as heart regulators

� Another way for confidential personal information to be abused

� Objects could absorb radiation unintentionally

� Efficiency varies by distance (40-90%)



How Is This Technology Being Used?

� PowerCast

� Introduced wireless holiday lights at the end of 2007

� Leader in the industry

� Signed nondisclosure agreements to develop products with more

than 100 companies� Companies include manufacturers of:

» Cell phones, MP3 players, automotive parts, temperature

sensors, hearing aids and medical implants

� WildCharge: a Colorado-based company

� Released a special back plate for the Motorola RAZR� Enables the phone's battery to receive power from a charged mat

� Plans to introduce similar adapters for the iPod Nano and Blackberry



How Is This Technology Being Used?

� Bosch and eCoupled� Created a vehicle with wireless energy flowing throughout

� It can:

» Recharge power tools placed on a charging shelf

» Recognize and recharge cell phones and PDAs placed in

holding bins� Fulton Innovation: US company

� Working with V isteon, a car parts manufacturer

� Possible product that will recharge a phone when it·s placed into avehicle's cup holder

� Probably won·t be widely seen until 2009 ² at the earliest

� Many experiments still needed� Health effects?

� Privacy

� Finalization of invention



Projections For How Technology Will Be Used

� US Department of Defense is funding research

� Hopes soldiers will be able to recharge batteries

automatically

� MIT is talking with companies interested incommercializing the technology

� Has attracted the attention of consumer-electronics

companies and the auto industry

� Overall hopes to wirelessly recharge electronic products

in any area through this new technology � Health-related products

� Consumer electronics



Bibliography

� http://www.popsci.com/scitech/article/2008-

01/electricity-air

� http://www.answers.com/topic/electromagnetic-

induction� http://www.katu.com/news/tech/27313134.html

� http://www.CNNMoney.com

� http://www.coolbusinessideas.com

� http://www.dailymail.co.uk/sciencetech/article-460602/The-end-plug-Scientists-invent-wireless-device-

beams-electricity-home.html

wireless electricity ]

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