A foreign object detection apparatus (200) including a plurality of object sensing devices (201a, 202b,..., 201n) positioned between a transmission pad and a reception pad of a wireless charging system; and a detection circuit (270) configured to determine whether a foreign object is present between the transmission pad and the reception pad based on data received from the plurality of object sensing devices (201a, 202b,..., 201n). Further, each of the plurality of object sensing devices (201a, 202b,..., 201n) includes a first coil unit (210a) wound with a first coil in a first direction, and a second coil unit (210b) wound with a second coil in a second direction different from the first direction; and the first coil unit (210a) and the second coil unit (210b) overlap each other.
WIRELESS CHARGING SYSTEM INCLUDING A FOREIGN OBJECT DETECTION APPARATUS
DRAHTLOSES LADESYSTEM MIT FREMDKÖRPERDETEKTIONSVORRICHTUNG
SYSTÈME DE CHARGE SANS FIL LE COMPRENANT UN APPAREIL DE DÉTECTION D'OBJETS ÉTRANGERS
2022-06-15
Patent
Electronic Resource
English
Foreign object detection apparatus and wireless charging system including the same
European Patent Office | 2021
|Foreign object detection device, foreign object detection method, and wireless charging system
European Patent Office | 2024
|Foreign object detection method and apparatus, and wireless charging system
European Patent Office | 2024
|FOREIGN OBJECT DETECTION METHOD AND APPARATUS, AND WIRELESS CHARGING SYSTEM
European Patent Office | 2025
|FOREIGN OBJECT DETECTION METHOD AND APPARATUS, AND WIRELESS CHARGING SYSTEM
European Patent Office | 2022
|