Wireless power transmission system and method

Abstract

The present disclosure relates to a wireless power transmission system (100) comprising a wireless power transmission device (108), and a method of identifying the presence of a foreign object within wireless power transmission range of the wireless power transmission device (108). The wireless power transmission system (100) comprises a wireless power transmission device (108) for wirelessly transmitting power to an electronic receiver device (102) and a digital subsystem comprising an analog to digital converter “ADC” and a processor. The ADC is configured to digitise a waveform associated with the wireless power transmission device (108), to produce a source-drain waveform vector. The processor is configured to apply a classifier to the source-drain waveform vector; and determine, based on a numerical output of the classifier, whether a foreign object is present within wireless power transmission range of the wireless power transmission device (108).

Dependencies are inferred from the claim text.