Keke comments: With the emergence of the first Android model that supports magnetic wireless charging, other brands will definitely follow up in the future. A new round of power and experience competition is about to begin.
On February 27, Xiaomi suddenly announced a magnetic wireless charging solution over the weekend. This is also the third Android manufacturer to officially announce the magnetic charging solution after continuing OPPO/realme and Nubia. At the same time, Xiaomi's magnetic wireless charging is directly to the charging power to 50W, compared with the recently released Nubia Z40 Pro gravitational version of the 15W nearly doubled.
According to the technical details introduced by Xiaomi, Xiaomi magnetic wireless charging, through the adsorption force of the magnet can be more closely charged on the wireless charging transmission coil and receiving coil, and has the characteristics of small size, good interaction and 360 ° rotation without obstruction, Xiaomi said that this is a development direction of future wireless charging technology. However, the strong magnetic field of the magnet can easily cause the coil current to saturate. At the same time, the heat at both ends of the transmission and reception of magnetic wireless charging is easier to superimpose, so it is difficult for magnetic suction to do high power.
In response to the above two major problems, Xiaomi has developed a "small sense + magnetic absorption" scheme for two years. Xiaomi uses a small inductance coil to sense the energy of the transmitting end, and the volume of the receiving coil under this scheme is only 1/3 of that of the traditional scheme, and under the same conditions, the loss can be reduced to more than half of the traditional coil. For heat superposition, Xiaomi has also designed Xiaomi ultra-thin magnetic wireless charging and active refrigeration magnetic wireless charging respectively, two schemes to meet different needs.
Among them, the power of Xiaomi ultra-thin magnetic wireless charging is 30W, and the measured 86 minutes are full of 5000mAh batteries. The thin and light figure is equipped with 17 ring array poly magnetic cores, which can be charged without blocking while playing in the horizontal and vertical screen state, and has a suction force of 800g, which can stably adsorb the weight of 4 mobile phones. At the same time, the charging power and a number of safety protections will be intelligently adjusted according to the temperature of the mobile phone.
And Xiaomi active refrigeration magnetic wireless charging power is naturally higher, Xiaomi made it 50W, after all, there is active heat dissipation, and this also set a new record (magnetic wireless charging power). It is equipped with 17 ring array poly magnetic cores like the thin and light version, with the same adsorption characteristics. For heat dissipation, Xiaomi also adopts a semiconductor cooling scheme on its body, and the surface temperature can be reduced by 20 ° C within 1 minute, which integrates the mature heat dissipation back clamp characteristics into it. 50W full 5000mAh battery only takes 49 minutes, and the blood return is more powerful.
Since 2018, Xiaomi has increased its research and development and investment in charging technology, and wireless charging, as a charging method for better experience, has also been steadily promoted. The Xiaomi "small inductance + magnetic absorption" scheme is also different from the existing schemes in the industry, especially in the charging efficiency has been improved, compared to the "turtle speed" of 10W and 15W, 30W and 50W are definitely more practical. At the same time, the addition of magnetic wireless charging can also derive a variety of related peripheral devices.
However, it is worth noting that Xiaomi defines this technology as "pre-research technology", so it is expected that it may not be officially mass-produced and commercialized in a short period of time. As for which model will be launched? There is no doubt that I will vote for the Xiaomi MIX series, after all, this new technology is very compatible with the exploration and innovation route of the Xiaomi MIX series. I believe that other manufacturers will soon follow up with official announcements, hoping that Xiaomi can be commercialized as soon as possible and seize the advantages.