EDA技术在步进电动机驱动中的应用  

The Application of EDA Technology in Subdivided Driving of Stepping Motor

作　　者：章小印[1] 欧阳慧平[1] 

机构地区：[1]江西工业工程职业技术学院,江西萍乡337055

出　　处：《微特电机》2006年第10期31-34,共4页Small & Special Electrical Machines

摘　　要：介绍一种采用EDA技术输出PWM控制信号,对步进电动机细分驱动的实现方法。利用FPGA中的嵌入式EAB构成LPM-ROM,存放步进电动机各相细分电流所需的PWM控制波形数据表。并通过FPGA设计的数字比较器,同步产生多路PWM电流波形,实现对四相步进电动机转角进行均匀细分控制。该设计简化了外围电路,控制精度高、控制效果好。A solution in subdivided driving of stepping motor by means of EDA technology providing PWM control waveform was introduced. Using embeded EAB in FPGA to compose LPM_ROM,PWM control waveform data were stored which stepping motor each phase subdivided driving current needed. The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four - phase stepping motor. The design can reduce exteral circuit and have high control precision and good control effect.

关 键 词：步进电动机 细分控制 现场可编程门阵列 数字比较器 

分 类 号：TM383.6[电气工程—电机]