Wireless charging technology
Wireless charging technology stems from wireless power transmission technology. Wireless charging, also called inductive charging, non-contact inductive charging, utilizes near-field sensing, that is, inductive coupling, in which a power supply device (charger) transfers energy to a powered device that uses the received energy pair. The battery is charged and used for its own operation. Since the charger and the power supply device use inductive coupling to transfer energy, there is no wire connection between the two. Therefore, both the charger and the power-consuming device can be exposed without any conductive contacts.