FIELD: electrical engineering.
SUBSTANCE: method of detecting whether a foreign object is near a transmit coil in a wireless power transfer system (WPTS) includes steps of: applying a pseudo-random signal to the transmit coil, while the pseudo-random signal is being applied to the transmit coil, recording one or more signals produced within the WPTS in response to the applied pseudo-random signal, by using the one or more recorded signals, generating model of system for electrical aspects of the WPTS. Method includes using the generated system model in combination with stored training data to determine whether an object having characteristics recognisable from the stored training data as characteristic of the foreign object is near the transmit coil.
EFFECT: technical result is high efficiency and reliability of power transmission.
26 cl, 21 dwg
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