The invention provides a charging circuit with low input current ripples and a wide charging voltage range, and belongs to the technical field of power electronics. The charging circuit comprises a rectifier bridge D0, a front-end booster circuit, a direct-current voltage stabilizing capacitor Cb, a rear-end step-down circuit, a direct-current side filter capacitor Co and an equivalent load resistor Ro which are sequentially connected, the two input ends of the D0 are connected with alternating-current input voltage uac, the front-end booster circuit outputs direct-current voltage Ub to be added to the two ends of the Cb, the rear-end step-down circuit outputs charging voltage Uo used for being provided for the Ro, the charging voltage Uo is applied to the two ends of the Co, and the Co is connected with the Ro in parallel.

    本发明提供具有低输入电流纹波和宽充电电压范围的充电电路,属于电力电子技术领域。包括依次连接的整流桥D0、前端升压电路、直流稳压电容Cb、后端降压电路、直流侧滤波电容Co和等效负载电阻Ro,所述D0的两输入端接交流输入电压uac,所述前端升压电路输出直流电压Ub加在所述Cb两端,所述后端降压电路输出用于提供给所述Ro的充电电压Uo,所述充电电压Uo加在所述Co两端,所述Co与所述Ro并联。


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    Title :

    Charging circuit with low input current ripple and wide charging voltage range


    Additional title:

    具有低输入电流纹波和宽充电电压范围的充电电路


    Contributors:
    LI HONGQIANG (author) / WANG XIAOLI (author) / LI XUTAO (author) / XUE FEI (author) / MA XIN (author) / XU HENGSHAN (author) / ZHANG SHUANG (author) / TIAN BEI (author) / WANG CHAO (author) / ZHOU LEI (author)

    Publication date :

    2021-10-15


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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