Mobile phone wireless charging refers to a charging method that transmits power to the device in a wireless way and transfers the power to the inside of the mobile phone for charging. Unlike wired charging, wireless charging can be charged without touching the phone. At present, major mobile phone manufacturers have begun to apply wireless charging function in new mobile phones.
Specifically, wireless charging technology requires three parts: a wireless charger, a receiving chip, and a power source within a certain distance.
The wireless charger charges the receiving chip within a certain distance by transmitting electromagnetic waves to form an electromagnetic field. The receiver chip can store electrical energy and convert it into an electric current that can be used to charge the phone. It should be noted that the distance of wireless charging can not be too far, and the propagation loss of electromagnetic waves will increase with the increase of distance. Therefore, the maximum distance of wireless charging can only reach a few millimeters to a few centimeters. In addition, in order to ensure the smooth charging, the coil between the charger and the receiving chip should be aligned.
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Mobile phone wireless charging refers to the process of charging without connecting the data cable and the socket, but through the principle of electromagnetic induction.
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The principle of mobile phone wireless charging is to establish a certain distance between the mobile phone and the charger electromagnetic field, through the way of electromagnetic induction to transfer electricity to the mobile phone battery for charging.
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At the same time, mobile phone wireless charging technology has been developing continuously in recent years, and now more and more mobile phone models support wireless charging, and the market response is getting better and better, which brings great convenience to people's lives.