What is the principle of wireless reverse charging? Attachment: Introduction to wireless reverse charging

php Editor Baicao will take you to delve into wireless reverse charging technology and discuss its principles and applications. As an advanced technology, wireless reverse charging can realize wireless energy transmission between devices, allowing devices to charge each other. This article will provide you with a detailed analysis of the working principle of wireless reverse charging and its application scenarios in daily life, giving you a deeper understanding of this cutting-edge technology.

Don’t you know your phone supports wireless reverse charging? Do you still carry your power bank around the data cable? If your phone supports wireless charging, it should also support wireless reverse charging.

You may be wondering, what exactly is the wireless reverse charging function? Simply put, phones, tablets, and other devices can serve as wireless charging bases to charge other devices. With this function, you no longer need to carry a power bank and a bunch of data cables when you go out. You only need to hold two devices and "stick them together". If you want them all to fit in your pocket, make them "snug."

Normally, if you don’t use your phone, you can turn it upside down on the table, put the earphones on it to charge, and then wait a moment. It works. This function is really convenient, at least many people don’t take the power bank when they go out after using it. The premise is that both devices support wireless charging, otherwise it will be a waste of time.

Looking back at the development of wireless reverse charging, you will think that this function is very "black technology".

Speaking of the first manufacturer to introduce wireless reverse charging into mobile phones, Huawei deserves the honor. Huawei is not only the first manufacturer to add wireless reverse charging to its mobile phones, but also one of the first manufacturers to apply for technology patents.

As early as 2016, Huawei had applied for its first wireless reverse charging patent. The patent briefly described the implementation process and did not include relevant technical details. It is not difficult to find between the lines that Huawei did not just want to do wireless charging function from the beginning, but thought of the opposite, because the wireless charging coil can receive current, so it can output current by the way.

From the current point of view, Huawei’s idea in the patent is that all smart devices support wireless charging functions and can provide wireless charging to each other. This idea was very advanced at the time.

But the reality is cruel. Physical conditions strictly limit the operation of this implementation in practice, that is, a device with a relatively high battery capacity can charge a device with a relatively low battery capacity. For example, a mobile phone can Charge your headphones, not the other way around. This is because there is loss in energy conversion during the wireless charging process. Rather than in the absolutely ideal 1:1 state, mobile terminals often transmit 10% of the power and only 5%-7% of the power is sent to other devices.

Let’s take a look at Huawei’s first Mate20 Pro that uses wireless reverse charging technology. It introduces wireless charging technology and support solutions for the first time, and one of the main reasons is its long battery life. Its main positioning is high-end business. For business people, this function can alleviate the anxiety of emergency battery life of multiple devices.

Many people have been asked "Which functions deepened your interest in Huawei Mate". Wireless reverse charging is the most mentioned point. It is not difficult to imagine that this The function could be called “black technology” at that time.

Huawei’s Mate50 series is about to be released. According to the usual rules, Huawei will launch a number of black technologies in each generation of Mate series. I am sure that Huawei will also launch it. The new core technology once again breaks through the limitations of long battery life and truly achieves super performance and long battery life.

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