一种基于AD2S83芯片的转子位置及速度检测单元

Kind of Rotor Position and Speed Test Unit Based on AD2S83

提出了一种基于AD2S83芯片和旋转变压器—数字转换器的转子位置和速度测量模块的设计原理和实现方法,该模块以旋转变压器作为角位置传感器,利用AD2S83芯片对其输出的正余弦信号进行解算,主控单元采用TMS320F2812芯片,实现对角位置的实时测量并计算出角速度,作为伺服控制系统中的速度环和位置环的反馈变量对速度和位置进行实时控制。实验证明,该电路不仅完全达到了设计要求,而且系统工作稳定可靠,硬件电路简单,抗干扰能力强,可长期工作于恶劣的环境。

This paper raised a kind of rotor position and speed measurement module’s design principle and achieving method based on AD2S83 and resolver-digital converter. The module took the resolver as an angle position sensor, using AD2S83 to carry out resolving for sine and cosine signals. The main control unit adopted TMS320F2812 to realize real-time measurement and calculation of angle position and speed, acting as feed-back variable of speed loop and position to control the speed and position of servo system in real time. Experiment proves that the system is completely in conformity to design requirements, with features of stable and reliable working, simple hardware circuit, strong anti-interference, being able to work in long period worse environment.