December 06, 2015

Wireless charging of up to eight devices simultaneously with 8000 tiny antennas

The Cota wireless charging technology from Cairo-based Si-Ware Systems (SWS) and Ossia Inc. departs from coil-based systems to serve up to eight devices simultaneously at a distance of 30 feet using 2.4 GHz multi-path radio frequency.

SWS’ charger chip (SWS1410) is being used to build the Cota Wireless Charger, which can deliver more than 10 watts of remote wireless power. The receiver chip (SWS1420), which will be embedded in portable devices and batteries, is capable of receiving up to 6 watts of power to charge energy-hungry electronics efficiently. “SWS’ charger chip (SWS1410) is being used to build the Cota Wireless Charger, which can deliver more than 10 watts of remote wireless power. The receiver chip (SWS1420), which will be embedded in portable devices and batteries, is capable of receiving up to 6 watts of power to charge energy-hungry electronics efficiently, from Apple iPhones™ and Android™ handsets to remote control units and keyboards.”





Global revenues for wireless power receivers and transmitters will grow to more than $1.7 billion this year, according to IHS. A 2014 report put the market at $8.5 billion by 2018.

The Cota system includes a scalable receiver and transmitter with between 1,000 and 8,000 tiny antennas.

SWS’ SWS1420 receiver chip will be embedded in portable devices and eventually be put in batteries. The receiver transmits a synchronized beacon to the transmitter to locate and focus power, while also performing power management in a small, though unspecified footprint. The receiver refreshes its location 100 times per second for environmental adjustment.




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