Macbook will fix the induction coil on the palm rest, and then use the areas on both sides of the touchpad as wireless charging pads to transmit power. The patent also shows that the back of the iPad can also be used to fix the induction coil to wirelessly charge the iPhone, excluding the palm rest of the Macbook. It is undeniable that patented technology similar to Apple has actually appeared, but this technology is mainly used in mobile phones, such as wireless reverse charging. In 2008, Huawei emphasized at the launch conference of Huawei Mate 20 that Huawei Mate 20 pro can realize the wireless reverse charging function, and other mobile phone manufacturers also began to develop this function.
The technology of wireless reverse charging is actually realized on the basis of wireless charging function. First of all, to understand this principle, we must understand the principle of wireless charging technology. The principle of wireless charging technology is actually the principle of electromagnetic induction for babies who have studied high school physics. I believe everyone knows that electromagnetic waves have energy. This energy can be obtained through an electromagnetic coil, and then a current will be formed in the coil. Finally, charging can be realized through circuit integration. Later, on the basis of wireless charging, major manufacturers added wireless reverse charging technology to mobile phones. Simply put, it is to charge the mobile phone through the wireless charger, and then with the wireless reverse charging, you can use the mobile phone as a power supply to wirelessly charge another device that can support wireless charging technology, but the disadvantage is that the charging power is relatively small.
Wireless charging technology originated from wireless power transmission technology and can be divided into two ways: high-power wireless charging and low-power wireless charging. Mobile phone wireless charging technology belongs to low-power wireless charging, and the common technology of wireless charging is Qi mode, which belongs to electromagnetic induction mode.
Bian Xiao has to say that wireless charging is a boon for mobile phone users. In many cases, people may be inconvenient or forget to bring a charger. This technology can make mobile phone users no longer worry about not having a charger.