Wireless charging is essentially the transmission of an electrical current from a power source to a receiving device without the use of a physical connection. The electrical current is then used to charge or re-charge the battery of the receiving device. In this circumstance the receiving device can be anything from a smartphone or wearable, to a large industrial forklift.
It uses two resonant inductive couplings to transmit low-power signals between two devices. The base station has a transmitter coil and your phone has a receiver coil. The base station regularly sends a signal out, and when a resonance or capacity change is found because a compatible receiver coil is close enough, the signal is modulated and inductive charging begins.
Base on the applciation, Bruckewell offer the suitable compoents, including the power diode, rectifirer, MOSFET for different power watt range.
Please refer the attached PDF file