In addition to millet wireless charger, you do not know the cost-effective wireless charger

In fact, the story of wireless charging of mobile phones began as early as 2009. In 2007, Apple released the first generation of iPhone. In 2008, Google launched the first HTC Dream with Android system. In 2009, the world's first mobile phone supporting wireless charging finally came, which is Palm Pre.

If you want to use the wireless charging function of Palm Pre, you need a dedicated wireless charging base and a back cover with induction coil. The base's name is very interesting. It's called "touchstone", which translates into "touchstone". I believe many of you have heard of this name. The design of the whole base of "touchstone" is very small. The combination of the same skin like coating and magnetic suction makes it easy to fix the Palm Pre on the wireless charging base. In another sense, the touchstone is like a thick version of MagSafe. Xiaobian was lucky to have used this mobile phone in those years, and was also the first group to eat crabs. Wireless charging and gesture operation really surprised me.

On January 29, 2021, Xiaomi announced a new space charging technology to bring science fiction scenes into reality.

It is reported that this technology needs to be realized by Xiaomi's self-developed isolated charging pile, which has five phase interference antennas built in, which can carry out millisecond level spatial positioning for mobile phones, and then a phase control array composed of 144 antennas can directionally transmit millimeter wave to the mobile phone through beamforming, while the mobile phone can receive it through micro beacon antenna, which can achieve 5W 。