The wireless charging coil module operates based on electromagnetic induction. When the transmitter coil generates an alternating magnetic field, the receiver coil within the electronic device picks up the energy and converts it back into electrical power for charging.
Transmitter Coil
Receiver Coil
1.2-2 A
5-12VDC
2 ~ 10mm
700mA
20
43
15 x 10 x 8
0.035
2.3