WREL (technology)

WREL (technology)

WREL (Wireless Resonant Energy Link) is a wireless energy transfer technology developed by Intel.

The technology relies on strongly coupled resonators, a principle similar to the way a trained singer can shatter a glass using her voice. At the receiving resonator's natural frequency, energy is absorbed efficiently, just as a glass absorbs acoustic energy at its natural frequency. At the wall socket, power is put into magnetic fields at a transmitting resonator - basically an antenna. The receiving resonator is tuned to efficiently absorb energy from the magnetic field, whereas nearby objects do not.

Benefits

With this technology enabled in a laptop, for example, batteries could be recharged when the laptop gets within several feet of the transmit resonator.

History

The technology is based on principles of WiTricity proposed by Marin Soljacic, a physicist at MIT.

Intel chief technology officer Justin Rattner demonstrated powering a light bulb without the use of a plug or wire of any kind as he spoke at the California firm's annual developers forum in San Francisco 2008-08-21. Electricity was sent wirelessly to a lamp on stage, lighting a 60 watt light bulb that uses more power than a typical laptop computer.

References

*cite news | url = http://www.intel.com/pressroom/archive/releases/20080821comp.htm | title = Cutting the Last Cord, Wireless Power | publisher = Intel | date = 2008-08-21
*cite news | url = http://news.yahoo.com/s/afp/20080821/ts_afp/usitinternetenergychipcompanyintel | title = Intel cuts electric cords with wireless power system | publisher = Yahoo News | date = 2008-08-21
*cite news | url = http://news.bbc.co.uk/2/hi/technology/7575618.stm | title = An end to spaghetti power cables | author = Maggie Shiels | publisher = BBC News | date = 2008-08-22

ee also

*WiTricity
*Wireless energy transfer
*Evanescent wave coupling
*List of emerging technologies


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