The invention discloses a vehicle load driving circuit and a vehicle. The vehicle load driving circuit comprises a load power supply, a load, a sampling resistor, a sampling circuit, a comparison circuit and a control circuit, the load power supply is sequentially connected in series with the load and the sampling resistor; the sampling circuit is used for acquiring voltages at the two ends of the sampling resistor and outputting an output voltage determined according to the voltages at the two ends of the sampling resistor to the comparison circuit, and the change direction of the output voltage of the sampling circuit is consistent with the change direction of the voltages at the two ends of the sampling resistor; the comparison circuit is used for comparing the output voltage of the sampling circuit with a comparison voltage and outputting a comparison result signal to the control circuit, and the comparison voltage is set according to a comparison voltage configuration element; and the control circuit is used for controlling the disconnection between the load and the ground when the comparison result signal identifies that the output voltage of the sampling circuit is greater than the comparison voltage. The current limiting value of the load circuit can be changed, so that the current limiting requirements of different loads are met.

    本发明公开一种车辆负载驱动电路及车辆,车辆负载驱动电路包括:负载电源、负载、采样电阻、采样电路、比较电路、以及控制电路;负载电源依次与负载、采样电阻串联接地;采样电路,用于获取采样电阻两端电压,并向比较电路输出根据采样电阻的两端电压所确定的输出电压,采样电路的输出电压的变化方向与采样电阻两端电压的变化方向一致;比较电路,用于比较采样电路的输出电压与比较电压的大小,并将比较结果信号输出到控制电路,比较电压根据比较电压配置元件进行设置;控制电路,用于在比较结果信号标识采样电路的输出电压大于比较电压时,控制负载与地的断开。本发明能够改变负载电路的限流值,从而满足不同负载的限流需求。


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    Title :

    Vehicle load driving circuit and vehicle


    Additional title:

    一种车辆负载驱动电路及车辆


    Contributors:
    HE YUEQING (author)

    Publication date :

    2024-01-26


    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 / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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