ARM处理器的蠕动泵步进电机细分驱动系统

Stepper Motor Subdivision Drive System of Peristaltic Pump Based on ARM

针对海洋水质监测仪中流路进样系统对蠕动泵精确控制的具体需求,设计了以ARM处理器为核心的单芯片步进电机细分驱动器。分析了步进电机细分驱动原理,重点研究了微处理器内部集成资源在细分系统各个环节的实现,设计了细分驱动和功率驱动的硬件电路,介绍了多路极性脉冲和细分数据同步输出的方法。最后对细分控制系统进行了测试,并给出了对应的步进电机细分电流波形图,实验结果验证了该方案的可行性。

Aiming at the accurate control demand for the peristaltic pump in the channel sampling system of the seawater quality monitor, a single chip stepper motor subdivision driver based on ARM processor is designed. The contents are introduced in this paper such as the subdivision driving theory of the stepper motor, the realization of the microprocessor integrated resources in the subdivision system, the hardware circuit design of the subdivision driven and the power-driven, the sync output method of the multi-polarity pulse and the segmentation data. The experimental results verify the feasibility of the program,and the subdivision current waveform chart of the stepper motor is given