Wireless charging standards to be consolidated

February 13, 2014 // By Paul Buckley
The Alliance for Wireless Power (A4WP) has signed an agreement with the Power Matters Alliance (PMA) with the aim of establishing global interoperability of the two wireless power standards.  

The two organisations represent the major rival standards bodies focused on wireless charging technologies used for recharging of batteries in portable devices.  The PMA promotes inductive wireless charging and A4WP promotes resonant wireless charging.

The agreement should accelerate the development of an interoperable wireless charging ecosystem to drive the broad consumer adoption of wireless charging.

The agreement paves the way for the establishment of a clear path for industry consolidation by harmonizing technical standards that deliver interoperability and streamline next-generation wireless charging. According to market intelligence analyst, IHS, the combined global market for wireless power receivers and transmitters is expected to rise to 1.7 billion unit shipments in 2023, up from about 25 million in 2013.

The PMA is a leader in inductive wireless charging technology with installations in many popular venues including select Starbucks and McDonald's stores, and has developed an Open Network API capable of transforming individual charging spots into a smart, manageable, global wireless power network. A4WP, the de facto standard for resonant wireless charging, has developed the only industry sponsored magnetic resonance technical specification and is supported by a global product certification program under the Rezence brand.

The agreement will see the PMA adopt the A4WP Rezence specification as the PMA magnetic resonance charging specification for both transmitters and receivers in both single and multi-mode configurations. In response A4WP plans to adopt the PMA inductive specification as a supported option for multi-mode inductive, magnetic resonance implementations.  The A4WP is also going to collaborate with PMA on their open network API for network services management.

"This announcement delivers a compelling message for the industry to commit and deliver wireless charging devices now. Between the organizations, A4WP and PMA membership consists of the key players necessary to drive industry consolidation and establish a commercially viable globally interoperable wireless charging ecosystem," said Kamil Grajski, President, Alliance for Wireless Power.

"We have listened and acted very deliberately to the overwhelming