With the continuous improvement of power supply quality, safety, reliability, convenience, timeliness, special occasions and special geographical environment, the contact power transmission mode can not meet the actual needs.
is a device that uses the principle of electromagnetic induction to charge. Its principle is similar to that of transformer. By placing a coil at the transmitting end and the receiving end respectively, the transmitting end coil sends an electromagnetic signal to the outside under the action of power, and the receiving end coil receives the electromagnetic signal and converts the electromagnetic signal into current, so as to achieve the purpose of wireless charging. Wireless charging technology is a special power supply method. It does not need a power line, relies on electromagnetic wave propagation, and then converts electromagnetic wave energy into electric energy, so as to realize wireless charging.(wireless charger)