A foreign object detection apparatus and method, and a wireless charger. In the foreign object detection apparatus, a signal generation module generates a first calibration excitation signal based on first indication information received from a processing module and generates at least two first calibration carrier signals based on the first indication information. A phase difference detection module determines, based on each first calibration carrier signal and a first current signal obtained by a foreign object detection module under an action of the first calibration excitation signal, a first phase difference between each first calibration carrier signal and the first current signal. The processing module determines a target initial phase based on the first phase difference, and then generates second indication information. The second indication information indicates the signal generation module to generate a detection carrier signal whose initial phase is the target initial phase.


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    Titel :

    FOREIGN OBJECT DETECTION APPARATUS AND METHOD AND WIRELESS CHARGER


    Beteiligte:
    WANG SHUYANG (Autor:in) / WU ZHIXIAN (Autor:in) / LIU YANDING (Autor:in)

    Erscheinungsdatum :

    27.04.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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