Update : 2018.1.12 Fri 15:09
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Uncoupled power transfer technology for wireless charging
Display Plus  |  editor@displayplus.net
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2017.09.04  11:29:24
트위터 페이스북 네이버 구글 msn

Uncoupled power transfer technology is a family of wire-free technology that provides power to battery powered devices at a distance, ranging from a few centimeters to a few meters.

Uncoupled power transfer technology provides power along with complete spatial freedom allowing end consumer to experience a true untethered experience.

There are multiple technologies enabling wire-free power transfer experience namely:

- Near-Field RF and Far-Field RF, which are based on the principals of RF power transfer and reception using antennas
- Ultrasonic transduction, which delivers power at a distance using ultrasonic sound waves
- Laser power beaming, which delivers power at a distance using laser light

These technologies provide increased range with complete spatial freedom enabling a seamless power transfer experience for the end user.

Within AirFuel Alliance (www.airfuelalliance.org), various applications of this technology are addressed within the Uncoupled Working Committee.

Technology Features:

Frequency Band:
– 5.75-5.85GHz as primary band
– Additional bands in the range of Sub GHz to 6GHz are under consideration

Rx Power Levels:
– Multi power class support up to 5W for initial spec in 2016
– Increase to 15W on next release (2017)

Operating Range:
– Charging zone with radius ranging up to 15 feet

Use Cases:
– Charging of multiple devices through a defined charging zone using a single UTx
– Optional coordinated UTx mode to create an extended charging zone



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