FIELD: electrical engineering.
SUBSTANCE: field of application: electrical engineering. Method of detecting whether a receiver coil is near a transmit coil in a wireless power transfer system (WPTS) comprises 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 a system model for the electrical characteristics of the WPTS and use the generated system model in combination with stored training data to determine whether an object having characteristics distinguishing the object as a receiver coil is near the transmit coil.
EFFECT: technical result is an increase in the efficiency of wireless power transfer.
62 cl, 21 dwg
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