Motorola Demonstrates Its Own Air Charging Technology

Ruben Fields
January 31, 2021

Xiaomi aims for a truly wireless future with the Mi Air Charge system, which is capable of charging multiple devices wirelessly from a distance.

Phones will need a special mmWave module to work with Mi Air Charge, featuring a beacon antenna and an array to collect all those mmWave signals. Millimeter-wide waves are transmitted directly to the phone through a phase control array.

The wireless charging tech will evidently be restricted to Xiaomi devices because it won't work without the presence of a proprietary "miniaturized antenna array" in the device drawing power. Beacon antenna broadcasts position information with low power consumption. The millimeter wave signal emitted by the charging pile turns into electric energy through the rectifier circuit.

Back in 2016, we told you that Apple had agreed to team up with Energous for its WattUp remote wireless charging technology. But the real "breakthrough" bit, in our opinion, is the claim that "even physical obstacles do not reduce the charging efficiency". They imagine a world where everything in the room is truly wireless. It means that devices can be charged without the need for a charging cable or stand. The smartphone company has been in the news earlier rumoured to be working on a similar 200W fast charging technology. Motorola has released a clarification on yesterday's announcement and has posted a new video demonstrating that charging continues even when objects are placed between the smartphones and the station.

The tech can also charge multiple devices at the same time, provided each device supports 5 watts.

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Wireless charging in its current form is definitely convenient since it allows you to just plop a device like a smartphone or headphones down on a pad to top off its battery without having to reach for a cable.

Motorola hasn't shared details on how its remote charging technology other than the video demonstration.

It is interesting to see more brands are experimenting with such innovating tech and hopefully we will see this new charging technology in commercial devices soon. The device doing the charging appears to be labelled Motorola One Hyper - although that won't be a marketable name, because there was a 2020 phone launched under that name.

The aim for Xiaomi is to create "fully wireless" living rooms in the future, with the "space isolation charging technology" to work with wearables, in addition to smartphones.

Eventually, Xiaomi envisions a wireless home, with speakers, desk lamps and other smart devices all charging wirelessly from the same tower.

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