摘要
在步进电机控制系统中,采用调频调压与恒频脉冲调宽及高低压驱动相结合的连续细分驱动电路方法。LM331F/V变换器件提供细分时的参考电压,由软件控制产生频率信号,采用正弦与线性叠加规律对统组电流进行等步距细分,无需I/O扩展,工作可靠,从而很好地满足了系统的要求。
The circuit used in stepping motor control system which combines the merit of frequency - voltage conversion with constant frequency PWM and high - low voltage driving are introduced in this paper. In addition, the reference voltage of comparator is composed of F/V conversion chip - LM331 and the frequency signals which is produced by single - chip computer is analyzed here. It doesn' t require I/O expend and can subdivides the wind current according to linear plus sine wave. The circuit works reliably and satisfyes the requirements of system well.
出处
《微特电机》
北大核心
2002年第5期25-26,共2页
Small & Special Electrical Machines
