The invention discloses a double-voltage charging circuit and method, a double-voltage lithium battery pack circuit and an automobile, the double-voltage charging circuit is used for charging a double-voltage lithium battery pack, and the double-voltage lithium battery pack comprises a first positive electrode end, a second positive electrode end and a negative electrode end. The double-voltage charging circuit comprises a charging unit, a first anti-backflow unit, a second anti-backflow unit and a third anti-backflow unit. The charging unit comprises a first positive charging end, a second positive charging end and a negative charging end. The first end of the first anti-backflow unit is electrically connected with the first positive charging end, and the second end of the first anti-backflow unit is electrically connected with the first positive end; the first end of the second anti-backflow unit is electrically connected with the second positive charging end, and the second end of the second anti-backflow unit is electrically connected with the second positive electrode end; and the first end of the third anti-backflow unit is electrically connected with the negative charging end, and the second end of the third anti-backflow unit is electrically connected with the negative electrode end, so that the problem that the electric quantity of the double-voltage lithium battery pack flows back to the charger is solved.

    本发明公开一种双电压充电电路、方法、双电压锂电池组电路及汽车,该双电压充电电路用于给双电压锂电池组充电,双电压锂电池组包括第一正极端、第二正极端和负极端,双电压充电电路包括充电单元、第一防倒流单元、第二防倒流单元和第三防倒流单元,充电单元包括第一正充电端、第二正充电端和负充电端;第一防倒流单元的第一端与第一正充电端电连接,第一防倒流单元的第二端与第一正极端电连接;第二防倒流单元的第一端与第二正充电端,第二防倒流单元的第二端与第二正极端电连接;第三防倒流单元的第一端与负充电端电连接,第三防倒流单元的第二端与负极端电连接,以此解决双电压锂电池组电量回流充电器的问题。


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    Title :

    Dual-voltage charging circuit and method, dual-voltage lithium battery pack circuit and automobile


    Additional title:

    一种双电压充电电路、方法、双电压锂电池组电路及汽车


    Contributors:
    BAO XUDONG (author) / YAO YUQING (author) / FAN QIAN (author) / SHI XINGSHENG (author)

    Publication date :

    2024-02-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



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