In inductive wireless power transfer systems, foreign object detection (FOD) is a vital function due to safety consideration. However, for existing products in the market, the integrated foreign object detection methods are either based on offline solutions, or online solutions with limited detection accuracy and speed. In this paper, an online foreign object detection method with a single auxiliary coil is proposed to provide high-speed high-accuracy protection for wireless charging systems. This method achieves detection without interruption of power transfer. Also, the detection circuit does not need an extra power supply, which minimizes the added cost. Finally, an example circuit is built, and corresponding simulation and experiment results demonstrate the feasibility and superior performance of the method.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fast Online Foreign Object Detection Method using Auxiliary Coils in Wireless Charging Systems


    Beteiligte:
    Cai, Wen (Autor:in) / Yi, Fan (Autor:in) / Jiang, Ling (Autor:in)


    Erscheinungsdatum :

    01.06.2020


    Format / Umfang :

    516680 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Foreign object detection device, foreign object detection method, and wireless charging system

    BAO JIE / LIU ZHITONG / LIANG SHIFU et al. | Europäisches Patentamt | 2024

    Freier Zugriff


    Wireless charging transmitter with foreign object and living object detection systems

    DIMKE BERNWARD / STAMENIC MILENKO | Europäisches Patentamt | 2019

    Freier Zugriff

    WIRELESS CHARGING TRANSMITTER WITH FOREIGN OBJECT AND LIVING OBJECT DETECTION SYSTEMS

    DIMKE BERNWARD / STAMENIC MILENKO | Europäisches Patentamt | 2019

    Freier Zugriff