Wireless charging is a new feature, many people will not use it, you will know how to operate it after reading this article

Wireless charging is a new feature, many people will not use it, you will know how to operate it after reading this article

With the continuous development of charging technology, wireless charging technology has officially entered the application stage, but many users do not know how to use the wireless charging function of mobile phones. This article combines the principles of wireless charging and the required equipment to teach you how to use the wireless charging function. .

The principle of mobile phone wireless charging

The principle of radio charging actually uses the principle of electromagnetic induction to charge equipment. The principle is similar to that of transformer equipment. It requires a transmitter and a receiver. The transmitter converts the current into an electromagnetic signal, and then the receiver converts the received electromagnetic signal again. Converted into electric current, and this is the principle of wireless charging.

In terms of current wireless charging technology, there are three ways of wireless charging. One is electromagnetic induction, which generates electric current through electromagnetic induction between the primary and secondary coils; the other is the "radio" that was first used in space calls. , It mainly relies on circuits with high-efficiency receiving performance to capture radio waves in the air, and then convert this radio waves into electrical energy; and the last one is electromagnetic resonance, but this technology is not mature and is still in the laboratory research and development stage. , And did not apply to the phone.

Necessary conditions for mobile phone wireless charging

The previous article introduced three ways to realize wireless charging. The third way is in the laboratory stage, and the most common ones are electromagnetic induction and radio charging. To realize wireless charging, you must have an electromagnetic conversion transmitter and an electronic conversion receiver. .

If you use a mobile phone for wireless charging, then the mobile phone must have a built-in wireless charging receiver, and an external wireless charging transmitter must be installed.

The home wireless charging pile launched by Xiaomi some time ago actually uses the principle of radio to build multiple transmitting antennas (devices) inside the charging pile to allow the radio electromagnetic signal to cover a certain range, and the mobile phone within the coverage of the signal, Both can be wirelessly charged.

Therefore, if you want to use a mobile phone for wireless charging, you must make sure that the mobile phone supports wireless charging, and then configure an additional wireless charger, and ensure that the mobile phone is within the coverage of the wireless charger signal.