Wireless charging, also known as inductive charging or non-contact inductive charging, comes from wireless power transmission technology, which uses near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the electrical device, the device uses the received energy to charge the battery, and at the same time for its own operation. Because the charger and the electrical device are inductively coupled to transmit energy, the two are not connected by wires, so the charger and the electrical device can be no conductive contact exposed, wireless charging mainly uses the principle of electromagnetic induction, magnetic field resonance and radio wave technology.
Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, wireless charging technology obtained 20 patents in 2007, and a variety of devices can use a charging base station. Wired charging for cell phones, MP3 players, power tools and other power adapters will no longer exist.
By using the magnetic field generated between the coils to magically transfer electrical energy, inductive coupling technology will become a bridge connecting the charging base station and the device.