In the present invention an output terminal (23) of a signal output device (20) is connected via a branch path (33) to a voltage division point (D) provided in the middle of main trunk paths (31, 32)connecting a power supply terminal (21) and a ground terminal (22), and transmits an output signal based on the voltage of the voltage division point (D) to the outside. A signal generation circuit (60) adjusts the voltage of the voltage division point (D) and generates the output signal. A short-circuit detection circuit (50) detects a short-circuit between the output terminal (23) and the otherterminals when a current flowing in the branch path (33) is greater than a prescribed short-circuit detection threshold value. When a short-circuit is detected by the short-circuit detection circuit (50) switching circuits (61, 62) switch the conduction capacity or the configuration of the signal generation circuit (60), thereby limiting the short-circuit current flowing in the branch path (33). The short-circuit current is set to a value equal to or greater than the short-circuit detection threshold value and less than an upper limit current value based on the supply capacity of a direct-current power supply.

    信号输出装置(20)的输出端子(23),经由分支路线(33)而与将电源端子(21)和接地端子(22)进行连接的主干路线(31,32)的中途设置的分压点(D)连接,将基于分压点(D)的电压的输出信号向外部发送。信号生成电路(60)调整分压点(D)的电压,生成输出信号。短路检测电路(50)当流过分支路线(33)的电流大于规定的短路检测阈值时,检测输出端子(23)与其他端子的短路。切换电路(61,62)当由短路检测电路(50)检测到短路时,切换信号生成电路(60)的通电能力或结构,限制流过分支路线(33)的短路时电流。短路时电流被设定为在短路检测阈值以上并且比基于直流电源的供给能力的电流上限值小的值。


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    Title :

    SIGNAL OUTPUT DEVICE


    Additional title:

    信号输出装置


    Contributors:

    Publication date :

    2020-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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