步进电机超前角信息的检测

Detection of Lead Angle Information in Stepping Motor

步进电机的微型计算机闭环控制系统中，超前角是自动最佳驱动的一个重要信息．本文介绍步进电机超前角信息的一种检测方法，描述转子到位判别门阳电平产生装置和中断信号产生器的设计，并提供实际测量的Ｖ＿θ～θ关系曲线和检测电路的信号波形。

The lead angle is an important information of microcomputer closed loopcontrolled self-optimizing drive for stepping motor. The detecting method of the lead angle infor-mation is presented.A detailed description is given about the design of the distinguishable gatelevel generator and the interrupt signal generator for rotor rotate to a definite position.The ex-periment curve of vaviation of V_θwith θ and the signal waveform of the detecting circuits is of-fered.