The invention discloses a wireless charging vehicle end control unit. A vehicle end induction coil and a wireless charging ground end coil carry out current wireless transmission through electromagnetic induction. A step-down rectifier circuit is connected between the vehicle end induction coil and a vehicle-mounted battery, and is driven and controlled by a DSP controller to provide different charging paths to charge the vehicle-mounted battery. Before charging is started, the DSP controller can judge whether the wireless charging ground end coil and the vehicle end induction coil are in place or not according to the working condition of the vehicle end induction coil and the working condition of the vehicle-mounted battery, adjust the switching-on time of the step-down rectifier circuitaccording to the voltage of the vehicle-mounted battery, and enable the step-down rectifier circuit to provide different charging paths to charge the vehicle-mounted battery according to the potentialat the two ends of the vehicle end induction coil. The invention also discloses a step-down rectifier circuit. According to the wireless charging vehicle end control unit, the current of the vehicleend coil can be reduced, the current of a rectifier tube can be reduced, the output current ripple can be reduced, the number and size of required electrical elements can be reduced, the cost can be reduced, and the wireless charging efficiency can be improved.

    本发明公开了一种无线充电车端控制单元包括:车端感应线圈与无线充电地端线圈通过电磁感应进行电流无线传输;降压整流电路连接于车端感应线圈和车载电池之间,其受DSP控制器驱动控制提供不同的充电路径对车载电池充电;DSP控制器,启动充电前能根据车端感应线圈工况和车载电池工况判断无线充电地端线圈和车端感应线圈是否就位,其能根据车载电池电压调节降压整流电路开通时间,能根据车端感应线圈的两端电位使降压整流电路提供不同的充电路径对车载电池充电。本发明还公开了一种降压整流电路。本发明的无线充电车端控制单元能降低车端线圈电流,能降低整流管电流,减小输出电流纹波,减少所需电气元件数量和尺寸,降低成本,提高无线充电效率。


    Access

    Download


    Export, share and cite



    Title :

    Step-down rectifier circuit and wireless charging vehicle end control unit


    Additional title:

    降压整流电路和无线充电车端控制单元


    Contributors:
    GUO SHUAI (author) / PAN QIANLI (author)

    Publication date :

    2020-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / 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



    Step-down charging system and vehicle

    CHEN WANZHEN / LI WEICHENG / LU ZHONGQING et al. | European Patent Office | 2024

    Free access

    VEHICLE CHARGING CIRCUIT WITH RECTIFIER DEVICE, LINK CAPACITOR AND PRECHARGING/DISCHARGE CIRCUIT

    HEIMANN WALDEMAR / GÖTZENBERGER MARTIN / SCHROD WALTER et al. | European Patent Office | 2024

    Free access

    Vehicle charging circuit with rectifier device, intermediate circuit capacitor and pre-charge/discharge circuit

    HEIMANN WOLFGANG / GOTZENBERGER MARTIN / SCHRU DER WOLFGANG et al. | European Patent Office | 2023

    Free access

    Pulse control method of electric vehicle charging pile rectifier

    ZHANG QIANXUN / DING WEIHONG / CAO JIAXIN et al. | European Patent Office | 2023

    Free access