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Wireless charger Standards
- May 22, 2018 -

Standards refer to the different set operating systems with which devices are compatible. There are two main standards: Qi and PMA. The two wireless charging standards operate very similarly, but they use different transmission frequencies and connection protocols. Because of this, devices compatible with one standard are not necessarily compatible with the other standard. However, there are devices compatible with both standards.


Magne Charge, a largely obsolete inductive charging system, also known as J1773, used to charge battery electric vehicles (BEV) formerly made by General Motors.

Qi, an interface standard developed by the Wireless Power Consortium for inductive electrical power transfer. At the time of July 2017, it is the most famous standard in the world, more than 200 million devices supporting this interface.

AirFuel Alliance:

In January 2012, the IEEE announced the initiation of the Power Matters Alliance (PMA) under the IEEE Standards Association (IEEE-SA) Industry Connections. The alliance is formed to publish set of standards for inductive power delivery that are safe and energy efficient, and have smart power management. The PMA will also focus on the creation of an inductive power ecosystem

Rezence was an interface standard developed by the Alliance for Wireless Power (A4WP).

A4WP and PMA merged into the AirFuel Alliance in 2015.