Submission + - Mobile Wireless Charging Tech Uses RF To Transmit Power Over 15 Feet (computerworld.com)
Lucas123 writes: Startup Energous plans to demonstrate at CES a technology it calls WattUp that can send power in a 15-foot radius using radio frequency transmissions. The company, which raised nearly $25M in an IPO earlier this year, is targeting smartphones, tablets and wearables for its product, which sends up to 4W of power at up to a 5-foot distance. The wireless charging router uses software to control what enabled devices it charges. As the distance and number of "authorized" devices increase power from the router dissipates. The far field charging device operates at 5.7 and 5.8 MHz.