An object detecting device includes a coil array including coils, short-circuit switches connected in parallel with the coils, an oscillator circuit that outputs, to the coils, a voltage including an alternating current component, selection switches connected between the coils and the oscillator circuit, a detecting circuit that detects an object based on a change in a physical value such as voltage, and a control circuit that opens and closes the short-circuit switches and the selection switches. When a first selection switch is closed, a first short-circuit switch, which is connected to the first selection switch, is opened. The other selection switches are opened, and the other short-circuit switches are closed.


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    Title :

    FOREIGN OBJECT DETECTING DEVICE, WIRELESS POWER TRANSMITTING DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM


    Additional title:

    FREMDKÖRPERERKENNUNGSVORRICHTUNG, VORRICHTUNG ZUR DRAHTLOSEN STROMÜBERTRAGUNG UND SYSTEM ZUR DRAHTLOSEN STROMÜBERTRAGUNG
    DISPOSITIF DE DÉTECTION D'OBJET ÉTRANGER, DISPOSITIF ET SYSTÈME DE TRANSMISSION DE PUISSANCE SANS FIL ET SYSTÈME DE TRANSMISSION DE PUISSANCE SANS FIL


    Contributors:

    Publication date :

    2018-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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