The future is now! Xiaomi’s Mi Air Charge technology can charge phones wirelessly over the air
Xiaomi ‘Remote Charging Technology’, dubbed as Mi Air Charge, has been announced and is claimed to charge multiple devices simultaneously without connecting any cables or placing the device on a wireless charging stand. The new Mi Air Charge technology will be revolutionary if implemented as advertised, letting devices be charged remotely even as the user walks around the room with the device, no wires attached. This comes as the latest addition to the company’s charging technology portfolio and has been vastly anticipated for years. Smartphones will be the obvious starting point for the implementation of Mi Air Charge, but smartwatches and other wearables, and even speakers, desk lamps, and other small smart home products, are on Xiaomi’s radar.
Xiaomi says the new Mi Air Charge technology will deliver 5W of power to any device remotely, covering a distance of up to two meters from the “self-developed isolated charging pile.” Multiple devices can be charged simultaneously using this tech, according to Xiaomi. The pile mentioned here is a box that will use beamforming to charge devices remotely. Moreover, any obstacles that come in the way of the pile and the device will not reduce the charging efficiency, meaning that the charging will continue at 5W speed.
Xiaomi says the Mi Air Charge is just in the demo stage at the moment but hasn’t mentioned when it’ll be made available commercially.
How Xiaomi Mi Air Charge works
The Mi Air Charging technology’s pile has 5 phase interface antennas that accurately determines the position of the mobile phone. The phase control array of the pile — composed of 144 antennas — will directionally transmit millimetre-wide waves through beamforming. The receiving device, e.g. a smartphone, must have a miniaturised antenna array with a built-in “beacon antenna” and “receiving antenna array” in order to charge the battery wirelessly. The former tells the pile the smartphone’s position, while the latter is a 14 antenna array that converts the millimetre-wave signal into electrical energy through the rectifier circuit.
Since Xiaomi’s Mi Air Charge technology is just in the demo stage at the moment, we can’t really comment on the implementation problems or whether it will have any implications on health while charging devices wirelessly. While it sure sounds game-changing on paper, the company may face heat during regulations and certifications.
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