The invention discloses a series formation constant-voltage charging circuit. The circuit is used for charging a power battery pack, and the power battery pack is provided with a plurality of single batteries. The circuit comprises: a power supply module; a plurality of charging units which are connected in series with the positive pole and the negative pole of the power supply module, wherein each charging unit is provided with a main circuit MOS and a bypass MOS connected in parallel with the main circuit MOS, each main circuit MOS is provided with two main circuit diodes, the two main circuit diodes are in forward bias connection with the series formation constant voltage charging circuit, each bypass MOS is provided with two bypass diodes, and the two bypass diodes are reversely biased and connected in the series formation constant-voltage charging circuit; and a PWA drive which is used for controlling a main circuit diode and a bypass diode to connect or disconnect the series formation constant-voltage charging circuit.

    本发明公开一种串联化成恒压充电电路,用于动力电池组充电,所述动力电池组具有多个单体电池,包括:一电源模块;多个充电单元,串联连接所述电源模块的正负两极,每一所述充电单元具有一主路MOS和与所述主路MOS并联连接的一旁路MOS;每一所述主路MOS具有两个主路二极管,且两个所述主路二极管正向偏置连接与所述串联化成恒压充电电路中;每一所述旁路MOS具有两个旁路二极管,且两个所述旁路二极管反向偏置连接与所述串联化成恒压充电电路中;一PWA驱动,控制一个主路二极管和一个旁路二极管导通或断开所述串联化成恒压充电电路。


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    Title :

    Series formation constant-voltage charging circuit


    Additional title:

    一种串联化成恒压充电电路


    Contributors:
    MAO GUANGFU (author)

    Publication date :

    2021-08-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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