The present application discloses a pre-charge device comprising a first pre-charge unit connected to an external power source for providing a first stage of pre-charge to a load, and a second pre-charge unit connected to an internal power source, the second pre-charge unit comprising a charge pump unit for providing a second stage of pre-charge to the load, and the voltage conversion module is used for converting the received voltage in the process of providing the second pre-charging stage for the load and outputting a preset constant voltage. The invention further discloses a voltage converter and an electric vehicle.

    本申请公开了一种预充电装置,该装置包括连接至外部电源的第一预充电单元,用于对负载提供第一阶段预充电,和连接至内部电源的第二预充电单元,所述第二预充电单元包括电荷泵单元,用于在对所述负载提供第二预充电阶段的过程中将所接收的电压进行转换且输出预定的恒定电压。本申请还公开了一种电压转换器和一种电动车。


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    Title :

    Pre-charging device, voltage converter and electric vehicle


    Additional title:

    预充电装置、电压转换器和电动车


    Contributors:
    WU ZHIWEI (author)

    Publication date :

    2023-06-27


    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 / 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



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