Wireless Charging Tech Sends Power Through Clothes, Books

The Alliance for Wireless Power (A4WP) just released its Rezence specification for wireless power transfer so any hardware vendor can make a charger that can penetrate cloth and other materials. Called the Rezence Baseline System Specification (BSS), the standard is a set of guidelines that allows manufacturers to build a wireless charging device that is compatible with the platform. The choice of other components, such as power amplifiers, DC-to-DC converters, rectifiers and microprocessors, are left up to the individual designer.

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