The invention discloses a rearview mirror anti-dazzling logic circuit and an anti-dazzling method, and the circuit comprises a first comparison circuit which is used for comparing a first input voltage with a first reference value and outputting a first starting voltage; the second comparison circuit is used for comparing a second input voltage with a second reference value and outputting a second starting voltage, and the output end of the second comparison circuit is connected with the clamping circuit; the countering circuit comprises a first comparator, the positive phase input end of the first comparator is connected with a second input voltage, the negative phase input end of the first comparator is connected with a third reference value, and the output end of the first comparator is connected to the first input voltage input end of the first comparison circuit by reversely connecting a first diode; the circuit is stable in structure and low in cost, the abnormal starting condition caused by triode voltage fluctuation in the circuit is solved, the danger condition caused by abnormal starting of an anti-dazzling mode during vehicle running is completely eradicated, dual protection is adopted, and the circuit is stable in running and more reliable.

    本发明公开了一种后视镜防眩目逻辑电路以及防眩目方法,其包括第一比较电路,其用于比较第一输入电压和第一基准值的大小并输出第一开启电压;第二比较电路,其用于比较第二输入电压和第二基准值的大小并输出第二开启电压,所述第二比较电路的输出端连接钳位电路;反制电路,包括第一比较器,第一比较器的正相输入端连接第二输入电压,第一比较器的反相输入端连接第三基准值,并且第一比较器的输出端通过反接第一二极管连接至第一比较电路的第一输入电压输入端;本发明电路结构稳定,成本低,解决了电路中三极管电压波动导致的异常开启状况,杜绝了车辆运行时防眩目模式异常打开造成危险的情况,采用双重保护,电路稳定运行,更加可靠性。


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    Title :

    Anti-dazzling logic circuit and anti-dazzling method for rearview mirror


    Additional title:

    一种后视镜防眩目逻辑电路以及防眩目方法


    Contributors:
    MEI YEXIONG (author) / HUA BING (author) / YANG YANG (author)

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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