摘要
本装置采用大功率晶体管模块与大规模集成芯片ＨＥＦ—４７５２并用单片机控制，组成异步机的ＰＷＭ调速系统，简化了系统的结构，提高了系统的可靠性。
This device is composed of large power transistor modules and large scale integrated cnips HEF-4752 and controlled by a single chip computer. The PWM speed adjusting device making up the asychromotor simplifies the structure of the system and advances its dependability
出处
《青岛化工学院学报（自然科学版）》
1994年第2期158-161,共4页
Journal of Qingdao Institute of Chemical Technology(Natural Science Edition)
关键词
变频调速
微机
PWM
电机
variable frequency
speed adjusting
single chip computer
