The embodiment of the invention provides a switch protection circuit and an electric vehicle. The switch protection circuit comprises a first switch module, a second switch module, a first current sensor, a first driving circuit, a second driving circuit, a first overcurrent protection circuit, a second overcurrent protection circuit, a power supply circuit and a control module, the DC/DC converter is connected with the first battery through the switch protection circuit; when the first current sensor detects abnormal current, the first overcurrent protection circuit controls the first switch module to be in an off state through the first driving circuit and/or the second overcurrent protection circuit controls the second switch module to be in an off state through the second driving circuit. The control module controls the first switch module to be in an off state through the first driving circuit and/or controls the second switch module to be in an off state through the second driving circuit. According to the embodiment of the invention, the power supply safety of the DC/DC converter can be improved.

    本申请实施例提供一种开关保护电路及电动汽车,该开关保护电路包括第一开关模块、第二开关模块、第一电流传感器、第一驱动电路、第二驱动电路、第一过流保护电路、第二过流保护电路、供电电路和控制模块;DC/DC转换器通过开关保护电路与第一电池连接;在第一电流传感器检测到电流异常的情况下,第一过流保护电路通过第一驱动电路控制第一开关模块处于断开状态和/或第二过流保护电路通过第二驱动电路控制第二开关模块处于断开状态,控制模块通过第一驱动电路控制第一开关模块处于断开状态和/或通过第二驱动电路控制第二开关模块处于断开状态。本申请实施例可以提升DC/DC转换器的供电安全。


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    Title :

    Switch protection circuit and electric automobile


    Additional title:

    开关保护电路及电动汽车


    Contributors:
    LI MINGHAO (author) / LIU PENGFEI (author) / LIU DENGKE (author) / WU RENHUA (author)

    Publication date :

    2023-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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