The invention discloses a driving and telemetering acquisition circuit of a magnetic torque device for a spacecraft. The driving and telemetering acquisition circuit is used for converting a received digital quantity remote control signal into an analog voltage quantity and outputting the analog voltage quantity to a driving control circuit of a driving power amplification circuit. And the driving power amplification circuit is used for receiving the analog voltage and outputting corresponding driving current to the external according to the magnitude of the voltage in proportion. And the driving current telemetering acquisition circuit is used for acquiring the magnitude and the direction of the driving current output by the driving power amplification circuit so as to judge whether the response of the digital quantity remote control signal is correct or not. The Darlington driving circuit structure formed by the composite triodes is used, and the driving capacity and stability of output current are improved. And the control precision of the output current is improved by using the virtual short and virtual off characteristics of the input end of the operational amplifier. And by adopting a structure that two paths of voltage stabilizing diodes are connected in parallel, the voltage at two ends of the output end can be controlled within a safe range. Real-time accurate monitoring of current can be realized by adopting a current sampling resistor through triode output current telemetering.

    本发明公开一种航天器用磁力距器驱动及遥测采集电路,用于将接收的数字量遥控信号转换成模拟电压量输出至驱动功率放大电路的驱动控制电路。用于接收模拟电压量,并根据电压的高低按比例输出相应的驱动电流至外部的驱动功率放大电路。用于采集驱动功率放大电路对外输出的驱动电流大小和方向,以对数字量遥控信号响应正确与否判断的驱动电流遥测采集电路。本发明使用复合三极管构成的达林顿驱动电路结构,提高输出电流的驱动能力和稳定性。使用运算放大器输入端“虚短”和“虚断”特性,提高输出电流控制精度。采用两路稳压二极管并联的结构,可使输出端两端电压控制在安全范围内。采用电流采样电阻经三极管输出电流遥测可实现电流的实时准确监测。


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    Title :

    Driving and telemetering acquisition circuit of magnetic torque device for spacecraft


    Additional title:

    一种航天器用磁力距器驱动及遥测采集电路


    Contributors:
    JI BINGHUA (author) / WANG MAOSEN (author) / SHEN QI (author) / WANG ZHIGUO (author) / LIU SHENGYANG (author)

    Publication date :

    2023-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / H03F Verstärker , AMPLIFIERS / H03M Codieren, Decodieren oder Codeumsetzung allgemein , CODING, DECODING OR CODE CONVERSION, IN GENERAL



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