The principle of wireless charging is electromagnetic induction, electromagnetic induction wireless charging uses the electromagnetic generation of magnetism, the electromagnetic induction principle of magnetic generation, that is, the mutual conversion of \"electricity\" and \"magnetic\".
Another principle of wireless charging is magnetic field resonance, which is composed of an energy sending device and an energy receiving device. When the two devices adjust to the same frequency, or resonate at a specific frequency, they can exchange energy with each other.