本文给出由智能功率模块IPM构成的印制绕组电动机（以下简称印制电机）双极N倍频PWM可逆调速系统，它采用智能PID 进行闭环控制。
This paper gives a kind of Printed Motor driver, which uses technology of Intelligent PID, N times PWM and intelligent power module-IPM.
介绍了基于单片机8051PWM 控制的电动机原理，阐述了8051与直流电动机构成的电机可逆控制和不可逆控制的实现过程。
This paper introduces the principle of electromotor based on single chip computer 8051PWM, and the realization process of reversible control and non-reversible control.
给出由智能功率模块IPM构成的印制绕组电动机(简称印制电机)双极N倍频pwm可逆调速系统，它采用智能PID进行闭环控制。
The printed motor driver, which USES technology of intelligent PID is given, Ntimes PWMand intelligent power module_IPM.
频繁可逆运转卸料设备，其电动机极易烧毁。
The motor of frequently reversible discharging equipment is very easy to be burnt out.
频繁可逆运转卸料设备，其电动机极易烧毁。
The motor of frequently reversible discharging equipment is very easy to be burnt out.
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