基于FPGA实现两相步进电机的细分驱动器设计  

Realization of Subdivision Driver Design of Two-phase Stepping Motor Based on FPGA

作　　者：申浩锋[1] 高宁波[1] 

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2015年第4期22-24,46,共4页Electronic and Electro-optical Systems

摘　　要：为了提高步进电机的定位精度，文章提出了一种基于FPGA实现两相步进电机恒流斩波驱动电路的设计。利用FPGA中LPM—ROM来存储步进电机各相细分电流的数据，通过比较器实现斩波恒流细分驱动。实验表明，该细分驱动电路工作稳定，有效克服了两相步进电机的低频振动和高频失步等缺点。提高了步进电机运行特性，有较好的使用价值。A design of constant current cut wave driving circuit of two-phase stepping motor based on FPGA is proposed to improve position precision of stepping motor. LPM_ROM of FPGA is employed to store the data of subdivided current of each phase for the stepping motor, and the chopping for constant current subdivision driver is realized by comparator. Experiments show that the subdivision drive circuit works steadily, that it can over- come the shortcoming of vibration in low frequency state and out-of-step in high frequency state, that it can enhance performance of stepping motor, and has good practical value.

关 键 词：FPGA 步进电机 细分驱动 恒流斩波 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]