Recent Advances in Wireless Power Transfer

Wireless power transfer (WPT) is the transmission of electrical energy without wires using electromagnetic fields. It is also called electromagnetic power transfer. In a WPT system, a transmitter device driven by electric power from a power source generates a time-varying electromagnetic field. This field transfers electricity to a receiver device through space. The receiver device then extracts the power from the electromagnetic field and delivers it to an electrical load. WPT technology c...