New wireless charging standard launches

Wireless mobile device charging is set to get easier after the Wireless Power Consortium today launched Qi 1.0, a standard enabling interoperability for wireless inductive charging devices.

Qi provides for "a method of contactless power transfer from a base station to a mobile device, which is based on near field magnetic induction between coils", according to the standards document available on the consortium web site.

Charging devices would transfer about 5W of power and operate in the 110-205kHz frequency range. The standard allows support for two methods of placing the mobile device on the surface of the base station.

The first is "guided positioning", helping a user to properly place the mobile device on the surface of the base station power provider, while the second would allow placement of the device anywhere on the base station surface.

The introduction of a standard would greatly strengthen customer adoption of wireless charging technology if it were to become universally adopted.

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