A radio power transmission apparatus comprises a transmitter 20 having a power transmitting antenna 9 for transmitting electromagnetic waves and a power transmitting circuit and a receiver 40 having a power receiving antenna 29 for receiving electromagnetic waves and a power receiving circuit. In the radio power transmission apparatus, on the basis of power reflected to the power transmitting antenna 9, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted. In addition, on the basis of a value of power transmitted to the transmitter 20 by using electromagnetic waves of power transmission used by the receiver 40 to transmit a value of power received by the receiver 40 through the power receiving antenna 29, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted.


    Access

    Download


    Export, share and cite



    Title :

    Radio power transmission apparatus and radio power transmission system


    Contributors:
    TAKEI KEN (author)

    Publication date :

    2018-02-20


    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 / H04B TRANSMISSION , Übertragung



    RADIO POWER TRANSMISSION DEVICE, RADIO POWER TRANSMISSION METHOD, PROGRAM, AND RADIO POWER TRANSMISSION SYSTEM

    OGAWA KENICHIRO / TSUKASAGI TOORU | European Patent Office | 2017

    Free access

    RADIO TRANSMISSION SYSTEM

    FUMIYA MASAHIRO | European Patent Office | 2016

    Free access

    RADIO WAVE MEASUREMENT SYSTEM AND WIRELESS POWER TRANSMISSION DEVICE

    HOMMA YUKIHIRO | European Patent Office | 2024

    Free access

    RADIO WAVE MEASUREMENT SYSTEM AND WIRELESS POWER TRANSMISSION DEVICE

    HOMMA YUKIHIRO | European Patent Office | 2018

    Free access

    OUTPUT POWER DETERMINATION FOR OPTIMAL RADIO SIGNAL TRANSMISSION

    CURINGA FLORIAN / ERNEBERG MIKAEL / HEDBERG ALEX | European Patent Office | 2022

    Free access