Motorola unveiled its own technology for charging smartphones over the air yesterday, which sparked a heated discussion. Many people are concerned that this technology is harmless to human health.
They also discussed the moment when the charger was covered with one hand, after which the charging process was stopped immediately. Motorola released a clarification on yesterday’s announcement and posted a new video demonstrating that charging continues even when objects are placed between smartphones and the station.
Chen Jin, general manager of Lenovo’s mobile division in China, said the charging stops when a hand or other body part appears between devices. This is a special safety feature for users’ health.
Xiaomi also unveiled yesterday the new next-generation Mi Air Charge wireless charging technology, which allows you to charge multiple devices at the same time without using cables or a wireless charging base.
Motorola Air Charging: Charging multiple smartphones 1 meter away
Motorola surprised its fans with the announcement of its own technology for charging smartphones over the air, immediately after Xiaomi unveiled the new next generation wireless charging technology, Mi Air Charge.
The company released a short video demonstrating its wireless air charging technology. The company uses a small millimeter wave transmitter to provide directional loading in the 80-100 cm range. The screen shot shows two smartphones charging at different distances from the transmitter.
The general manager of Lenovo’s mobile business in China said the solution offers a much greater distance than current Qi technology, while allowing multiple smartphones to be charged simultaneously.
In addition to being a truly wireless charging over the air, which will be significantly more user friendly, it also meets modern security requirements. The manufacturer has demonstrated that if a hand or other obstacle is placed between the smartphone and the transmitter, charging stops.
For comparison: Xiaomi Mi Air Charge technology allows wireless charging of multiple devices simultaneously from a distance of several meters.
Charge your phone remotely with Xiaomi Mi Air Charge technology
The manufacturing industry is growing every day and technologies reach the market from time to time. Xiaomi has just announced a revolutionary wireless charging innovation. The newly launched Xiaomi Mi Air Charge Technology is a significant attempt to turn the whole house into a wireless charger. With this technology, you can charge your device anywhere in the house. Whether you are walking, playing games or sleeping, your device can charge without an outlet. You also don’t need cables or wireless charging stands. Announcing this technology on Twitter, the company said
“We are excited to introduce you to remote charging technology – Mi Air Charge Technology! Charge multiple devices simultaneously while playing, walking or even when something is in the way, with no strings attached. Another giant leap in wireless charging technology! “
How does this technology work?
This is probably the most important question that many people will ask. The company had to design a special charging cell that comes with built-in five-phase interference antennas. These antennas will detect the location of the smartphone. To supply power to the phone, Xiaomi also includes a set of 144 antennae phase control. These other antennas can then transmit millimeter waves via beamforming to the smartphone.
In addition, there is also a small set of antennas with a built-in “beacon antenna” and a “receiving antenna array”. While the former serves to transmit the position information of the telephone, the latter, with 14 antennas, converts the millimeter wave signal from the load cell into electrical energy. It does this through the rectifier circuit to complete the charging solution.
Is this technology safe?
This is another very important question that many may ask. Well, we don’t expect Xiaomi to say it’s not safe, so we look at its feasibility. For now, Xiaomi Mi air cargo technology produces only 5W. This is hardly enough to cause any short-term damage. However, we cannot say the effect of exposure to such charges in the long run.
This technology supports charging multiple devices simultaneously. Each device will have 5W of charge. According to the company, it works on several meters. However, it did not provide a specific distance range. It is important to note that physical obstacles do not reduce the efficiency of loading. This technology works only for smartphones for now.