FIELD: wireless power transmission system.
SUBSTANCE: device comprises a power transmission coil (103) for receiving or generating a power transmission signal and a data transmission antenna (207) for communicating with a power receiver or power transmitter via a data signal. The data transmission antenna (207) overlaps with the power transmission coil (103). The magnetic shielding element is located between the power transmission coil (103) and the data transmission antenna (207). The controller (201) controls the device to perform power transmission during power transmission intervals and data transmission during data transmission time intervals, while power transmission intervals and data transmission time intervals do not overlap. The magnetic shielding element comprises a magnetic shielding material configured to operate in a saturated mode during power transmission intervals and a non-saturated mode during data transmission time intervals.
EFFECT: reducing interference between power transmission and data transmission, as well as improving the performance of wireless power transmission.
22 cl, 17 dwg
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