基于FPGA的步进电机正弦波驱动技术研究

An Sin Microstepping Driver Based on FPGA

为使步进电机输出转矩恒定,提高位置控制的精确度,消除低频下的干扰,介绍了一种新的步进电机驱动技术。驱动器采用赛灵思公司的FPGA作为控制核心,完成256细分和PID控制,并在EDA仿真工具Modelsim下验证了正确性。在实验条件下证实了该技术的可行性。

This paper presents a Sin microstepping method which can achieve constant torque, accurate position control and eliminate low frequency oscillation. The driver adopts Xilinx FPGA as core, achieving 256 subdividing and PID control algorithm. Then verifies its validity use EDA simulator Modelsim. Finally, it confirmed the feasibility of this teelmieal under experimental conditions.