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.

   The principle of wireless charging is actually to use the principle of electromagnetic induction to charge the device. The principle is similar to that of a transformer device. A transmitter and a receiver are required. The transmitting device converts the current into an electromagnetic signal, and then the receiving device converts the received electromagnetic signal into the current again, which is the principle of wireless charging.

    From the current wireless charging technology, there are three ways of wireless charging, one is electromagnetic induction, which generates current through electromagnetic induction between the primary and secondary coils; the other is the earliest radio used for space calls. It mainly relies on circuits with efficient reception performance to capture radio waves in the air and then convert them into electrical energy; the last one is electromagnetic resonance, but this technology is still in the laboratory development stage and has not been applied to mobile phones.

      The use of wireless charging for mobile phones. Wireless charging is still a new thing for most regular users. Due to a lack of understanding of wireless charging methods, they do not know how to use their phones to charge wirelessly.

      In fact, the way it's used is utterly stupid. Although it involves the conversion of electromagnetism and electric current, they are all done by the device. Generally speaking, wireless chargers are discs, and some are embedded and card slot types. Either way, however, as long as the phone has wireless charging, the phone will go into charging as soon as the phone is close to the wireless charger's tray.

      However, due to the limited transmit power of the charger, most wireless chargers need to be tightly connected to the phone, and the part that is tightly connected depends on the location of the radio receiver. As we all know, most mobile phones will configure the radio receiver on the middle back of the mobile phone, and directly put the mobile phone on the tray of the wireless charger to charge the mobile phone wirelessly.