摘要
为满足电脑绣花机控制系统中两相混合式步进电机低速时运行平稳及定位精确的控制性能要求,提出步进电机两相驱动方案及其恒力矩均匀细分相电流控制策略。以高性能微处理器PIC16F877为核心,结合DAC0832转换器芯片及双极性驱动器NJM3777,构建步进电机细分驱动控制系统。比较结果表明,该方法步进电机步矩分辨率较高,低速时运行平稳,转矩脉动小,系统运行噪音低。
In order to meet requirements of smooth running in low speed and precise performance for two phase hybrid stepper motor in the control system of computerized embroidery machine,introduce stepper motor two phase deriver scheme and its constant torque even subdivision current control strategy.Taking high performance（HP） micro processor unit（MPU） as coring,combined DAC0832 transformer chip with bipolar driver NJM3777 to construct stepper subdivision drive system.The comparison result shows that,by using this method,the stepper motor step torque resolution is improved,the system is running stable in low speed and small torque,and the system is low in noise when running.
出处
《兵工自动化》
2011年第6期65-67,共3页
Ordnance Industry Automation
关键词
电脑绣花机
混合式步进电机
恒力矩
细分驱动
恒流斩波
computerized embroidery machine
hybrid stepper motor
constant torque
subdivided driver
switch-mode and constant current
