A wireless power transmission system (200) includes a plurality of power transmission devices (50) capable of wirelessly transmitting electric power to a power reception device (30). The plurality of power transmission devices (50) is installed in an area in which a mobile object (20) is movable and each equipped with a power transmission coil (51) that wirelessly transmits electric power to the power reception device of the mobile object. There are provided main power lines (RFP) that supply to the plurality of power transmission devices alternating current (AC) power at a first voltage for use in power transmission, and a direct current (DC) power supply unit (60) that receives the AC power from the main power lines and outputs power at a second voltage that is lower than the first voltage and is used for control within each of the plurality of power transmission devices. This implements a wireless power transfer system with a simplified power supply for controlling the power transmission devices.


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    Title :

    CONTACTLESS POWER TRANSMISSION SYSTEM, CONTACTLESS POWER SUPPLY SYSTEM, AND CONTACTLESS POWER SUPPLY METHOD


    Additional title:

    KONTAKTLOSES STROMÜBERTRAGUNGSSYSTEM, KONTAKTLOSES STROMVERSORGUNGSSYSTEM UND KONTAKTLOSES STROMVERSORGUNGSVERFAHREN
    SYSTÈME DE TRANSMISSION D'ÉNERGIE SANS CONTACT, SYSTÈME D'ALIMENTATION ÉLECTRIQUE SANS CONTACT, ET PROCÉDÉ D'ALIMENTATION ÉLECTRIQUE SANS CONTACT


    Contributors:

    Publication date :

    2025-04-23


    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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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