wireless energy transfer

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wireless energy transfer

The transfer of power to a device without wires. Although the wireless transfer of electromagnetic energy in the form of audio, video and data signals is ubiquitous, the wireless transfer of electrical power is relatively new.

Inductive Charging
Some devices already employ wireless energy transfer without the use of metal contacts. Known as "inductive charging," power is transferred through the plastic cases using magnetic induction; however, the device must be dropped into a charging base or placed on a charging mat. See Qi and AirFuel.

Resonance Charging
Magnetic resonance chargers charge batteries in low-power devices that are close but do not have to touch. As soon as a device is within range, data signals activate the charging. The farther the distance between device and charger, the longer the charging time. See AirFuel.

The Future
By using magnetic fields, some time in the future, electric vehicles are expected to be refueled within three feet of the charging station.

No Metal Contacts
With inductive transfer, power is transferred without a metal plug and socket. The toothbrush is dropped into its charging base, and the smartphone rests on its base (see Palm Pre).


No Metal Contacts
With inductive transfer, power is transferred without a metal plug and socket. The toothbrush is dropped into its charging base, and the smartphone rests on its base (see Palm Pre).


Wireless Power in the Car
In 2013, iOttie debuted the Easy Flex system for certain smartphones. The dashboard mount (top) is wired to the car's power, and an antenna coil (bottom) is lined up with the phone's internal battery terminals.
References in periodicals archive ?
Wireless Electricity Demonstration, WiPower, CES 2010 (2:04 minutes): www.
Smart Grid technologies manufacturer Energy Optimizers Limited (EOL) has announced that it has extended the range of logging features in its plug-in, ZigBee wireless electricity meters for load analysis in commercial buildings with 230VAC appliances.
The wireless electricity monitors marketed as The OWL, supplied by Newbury-based 2 Save Energy, show households the cost of electricity used in the home, as well as their green house gas emissions, on a portable, easy to read LED display.
Besides (saving millions) the new wireless electricity system will also free up vast space used for substations, and underground and upper cables, while restricting eyesores and environmental hazards.
He also explained the two existing smart technologies for the transmission of wireless electricity.
Fit an oWL+USB wireless electricity monitor at home and you can see exactly where your money's going with live consumption data sent to your PC for pounds 40.
Building on the success of the OWL Wireless Electricity Monitor, OWL is launching a new range of electricity-saving devices that will appeal to anyone wanting to reduce their electricity bills and cut back on your carbon footprint.
ETHICAL SUPERSTORE OWL wireless electricity monitor, was pounds 34.
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