A half-bridge inverter 20 is used for a high frequency alternating current power supply to be connected to a primary side of a contactless power transformer 30, and a voltage-doubler rectifier 40 is used to convert a secondary-side alternating current output of the contactless power transformer 30 into a direct current. The alternating current output voltage of a half-bridge inverter drops a half of a full-bridge inverter. However, since the voltage-doubler rectifier boosts the output voltage to two times as high as the output of a full-wave rectifier, a voltage ratio between the input voltage to the inverter and the secondary-side direct current voltage becomes almost the same as a whole. The voltage of the contactless power transformer drops to approximately a half of the conventional voltage so that the contactless power transfer system is advantageous in terms of insulation and reducing ferrite loss.


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    Title :

    CONTACTLESS POWER TRANSFER SYSTEM


    Additional title:

    SYSTEM FÜR KONTAKTFREIE ENERGIEÜBERTRAGUNG
    SYSTÈME DE TRANSFERT D'ÉNERGIE SANS CONTACT


    Contributors:

    Publication date :

    2015-12-02


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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