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Power Matters Alliance (PMA) was a global, not-for-profit, industry organization whose mission was to advance a suite of standards and protocols for wireless power transfer for mobile electronic devices (specifically a type of inductive charging that competes with the Qi standard).
The Wireless Power Consortium (WPC) is a multinational technology consortium formed on December 17, 2008, and based in Piscataway, New Jersey. Its mission is to create and promote wide market adoption of its interface standards Qi , Ki Cordless Kitchen, and Qi Medium Power for inductive charging .
Qi (/ tʃ iː / CHEE) is an open standard for inductive charging developed by the Wireless Power Consortium.It allows compatible devices, such as smartphones, to receive power when placed on a Qi charger, which can be effective over distances up to 4 cm (1.6 in). [1]
The first standard for vehicle wireless charging was the SAE J2954 standard. It allows inductive car charging over a pad, with power delivery up to 11 kW. [22] As of 2024, standards for higher-power wireless charging and for charging while driving are being developed. [23]
The Lumia 830 supports wireless inductive charging using the Qi standard.The AT&T version additionally supports the PMA standard. [6]The Lumia 830 includes a variety of sensors, including proximity sensor, ambient light sensor, magnetometer, gyroscope and accelerometer, as well as Microsoft's Motion Data activity tracker based on Qualcomm's SensorCore technology. [7]
It licenses its technology, which enables compliance with the AirFuel (formally PMA) and the Qi standard. Furthermore, Powermat operates a software service system to allow venue owners to control and manage their installed wireless power networks, each of which consists of charging spots and a gateway. Charging spots in a work surface
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When the phone is set on the pad, a coil in the pad creates a magnetic field [1] which induces a current in another coil, in the phone, charging its battery. Generic block diagram of a wireless power system. Wireless power transfer (WPT; also wireless energy transmission or WET) is the transmission of electrical energy without wires as a