A wireless power transmission device that enables wireless power receiving device to identify wireless communication circuit without using communication of the wireless communication circuit of wireless power transmission device. A wireless power transmission device for wirelessly transmitting power to a wireless power receiving device includes a power transmission coil, a power transmission circuit configured to supply alternating current (AC) power to the power transmission coil, and a power transmission side communication circuit configured to communicate with the wireless power receiving device. The power transmission circuit is configured to supply a first AC power to the power transmission coil. The first AC power is an AC power having an intermittent supply period in an intermittent pattern representing identification information of the power transmission side communication circuit. The power transmission coil is configured to receive the first AC power and generate a first AC magnetic field corresponding to the intermittent pattern.


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    Title :

    Wireless power transmission device and wireless power transmission system


    Contributors:

    Publication date :

    2021-12-28


    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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