论文部分内容阅读
本文论述了一种新的步进电机驱动方法。用换流器控制的可控硅驱动器的电机绕组电流建立时间远小于用晶体管驱动器的建立时间,于是,绕组中建立磁场的瞬态过程缩短了,设定输出力矩的最大步进率增加。用该驱动方法,使绕组中电流建立时间只依赖于振荡周期LC~(1/LC)而与叶间常数L/R无关。所以每个串联电阻R的值可以减小以降低R中的功耗,电机效率提高。控制驱动器的每个信号可由微处理机产生和控制,有效而方便。
This article discusses a new stepper motor drive method. The converter windings of the thyristor-controlled thyristor drive are much smaller than the settling time of the transistor driver. As a result, the transient process of establishing the magnetic field in the winding is shortened and the maximum step rate of the set output torque is increased. With this driving method, the current build-up time in the winding depends only on the oscillation period LC ~ (1 / LC) irrespective of the inter-leaf constant L / R. So the value of each series resistor R can be reduced to reduce the power consumption in R, and the motor efficiency is improved. Each signal that controls the driver can be generated and controlled by the microprocessor, effectively and conveniently.