摘要
步进电机是将电脉冲信号转变为角位移的开环控制元件,步进电机的驱动需要配置专用驱动器,A3977是Allegro公司推出具有双极性、可细分用于两相式步进电机驱动的专用集成芯片。本文详细介绍了应用A3977芯片实现步进电机驱动器的设计方法及设计注意事项,并给出实际工程试验的实测结果。该步进电机驱动器具有控制简单、结构紧凑、低成本、定位精度高、低功耗等特点。
The stepper motor is a open-loop control component, which transforms the electrical-pulse signal to the angle displacement. A3977 is designed to operate bipolar stepper motor infull-,half-,quarter-,eighth-step modes by Allegro company. The design of the bipolar stepper motor driver is presented in detail in this paper,and the measured results in a certain application are also given.This typical steeper motor driver is easily controlled,lowly costed, precisely positioned and lowly consumed.
出处
《电子设计工程》
2014年第11期65-66,70,共3页
Electronic Design Engineering
