Disclosed herein is a wireless power receiving device including a detection circuit that detects a circuit characteristic value of the power receiving circuit and a position detection circuit that detects a state of the relative position between the power receiving coil and the power transmitting coil. The position detection circuit determines that the power receiving coil exists near the periphery of a position suitable for receiving power when the circuit characteristic value exceeds a first threshold value set between the peak value of the second peak and a detection limit value of the detection circuit, and calculates transmittable power from the wireless power transmitting device based on the circuit characteristic value, when the circuit characteristic value detected by the detection circuit exceeds a second threshold value set between the peak value of the second peak and the peak value of the first peak.


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    Title :

    Wireless power receiver and wireless power transmission system


    Contributors:
    II AKIHIRO (author) / MIYAZAWA RYO (author)

    Publication date :

    2021-08-03


    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



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