The invention discloses a communication circuit which comprises a data transmission circuit, a voltage control circuit and a processor. The voltage control circuit is arranged between the output negative end of the processor and the input negative end of the external device, and when a discharging switch tube in the charging and discharging same-port control switch tube is disconnected, the processor can control the voltage control circuit to be connected so as to pull the level of the input negative end of the external device to the level of the output negative end of the processor. It is guaranteed that the data transmission circuit can normally output the first data information and can normally receive the second data information sent by the external device, and even if the processor can normally conduct information interaction with the external device. Therefore, by controlling the conduction of the voltage control circuit, the level of the input negative end of the external device and the level of the output negative end of the processor are ensured to be the same or close; and the information interaction end of the data transmission circuit can output or receive corresponding data information by taking the level of the output negative end of the processor or the input negative end of the external device as a reference.

    本发明公开了一种通讯电路,包括数据传输电路、电压控制电路及处理器。电压控制电路设置于处理器的输出负端和外部装置的输入负端之间,当充放电同口控制开关管中的放电开关管断开时处理器能够控制电压控制电路导通,以将外部装置输入负端的电平拉至处理器的输出负端的电平,保证数据传输电路能够将第一数据信息正常输出,并能正常接收外部装置发送的第二数据信息,也即使处理器能够正常与外部装置进行信息交互。可见,本申请通过控制电压控制电路导通,从而保证外部装置输入负端的电平和处理器的输出负端的电平相同或接近,使数据传输电路的信息交互端能够以处理器的输出负端或外部装置的输入负端的电平为基准输出或接收相应的数据信息。


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    Title :

    Communication circuit


    Additional title:

    一种通讯电路


    Contributors:
    TENG JINGLONG (author) / ZHOU QINGSHENG (author) / XU HUI (author) / QI WEIHUA (author) / BAO WENGUANG (author)

    Publication date :

    2021-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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