The invention provides a power supply circuit, a sensor power supply unit, an electronic controller unit and a sensing system.The power supply circuit is applied to the technical field of vehicle electronic controllers, the power supply circuit comprises a first voltage stabilizer, a second voltage stabilizer, an electronic switch and a processor, the second voltage stabilizer forms working voltage required by the processor, the electronic switch is controlled by the processor to turn off or turn on a channel for external power supply, and the processor judges whether a short-circuit fault exists in external power supply or not and judges the type of the short-circuit fault according to feedback voltage. The power supply circuit formed by the two voltage stabilizers, the electronic switch, the processor and other universal devices has the functions of power supply and short-circuit protection, and also has the function of short-circuit fault detection, so that an alternative scheme can be provided for imported integrated devices.

    本申请提供一种供电电路、传感器供电单元、电子控制器单元及传感系统,应用于车辆电子控制器技术领域,其中供电电路包括第一稳压器、第二稳压器、电子开关和处理器,第一稳压器形成对外供电用的第一电压,第二稳压器形成处理器所需的工作电压,电子开关在处理器的控制下关断或导通对外供电的通道,处理器根据反馈电压判读对外供电是否存在短路故障及短路故障类型。通过采用两个稳压器、电子开关及处理器等通用器件形成的供电电路,不仅能够具有供电、短路保护的功能,而且还具有检测短路故障的功能,因而可以针对进口集成器件提供一种替代方案。


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    Title :

    Power supply circuit, sensor power supply unit, electronic controller unit and sensing system


    Additional title:

    供电电路、传感器供电单元、电子控制器单元及传感系统


    Contributors:
    QI BANGZHEN (author) / SANG WEIWEI (author) / WANG XIONGJIAN (author)

    Publication date :

    2025-04-11


    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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