Qi® 1.3 wireless charging reference design speeds time-to-market

July 15, 2021 // By Jean-Pierre Joosting
Qi® 1.3 wireless charging reference design speeds time-to-market
Reference design targets automotive and consumer applications, includes everything needed to quickly develop a Qi 1.3 certified transmitter.

The Wireless Power Consortium (WPC) has recently released the Qi 1.3 specification that requires authentication for improved safety when transmitting up to 15 W of power between a transmitter and a receiver. To meet the requirements of the specification, Microchip Technology has announced a new Qi® 1.3 wireless charging reference design providing developers of wireless charging systems for automotive and consumer applications with the necessary tools and support for the seamless integration and certification of new-generation product designs.

For wireless charging system developers launching certified Qi 1.3 transmitters under tight timelines, Microchip’s three-coil Qi 1.3 reference design provides a head start for product development. The reference design fully integrates secure storage subsystem software with the wireless power microcontroller (MCU) and is a flexible solution, enabling custom topologies and foreign object detection (FOD) implementation.

Included in Microchip’s reference design for wireless charging systems are all required elements: Qi controller, Qi application software, provisioned authentication controller that is a WPC-approved secure storage subsystem and crypto software libraries that execute on the Qi controller. The reference design includes complete schematics, bill of materials, software and design guidelines. Microchip is partnering with Avnet to make evaluation boards for the Qi reference design available to qualified customers around the world.


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