Description: 8051实现直流电机PMW调速系统
本文所述的直流电机闭环调速系统是以低价位的单片微机8051为核心的，而通过单片机来实现电机调整又有多种途径，相对于其他用硬件或者硬件与软件相结合的方法实现对电机进行调整，采用PWM软件方法来实现的调速过程具有更大的灵活性和更低的成本，它能够充分发挥单片机的效能，对于简易速度控制系统的实现提供了一种有效的途径。而在软件方面，采用PLD算法来确定闭环控制的补偿量也是由数字电路组成的直流电机闭环调速系统所不能及的。曾经也试过用单片机直接产生PWM波形，但其最终效果并不理想，在使用了少量的硬件后，单片机的压力大大减小，程序中有充足的时间进行闭环控制的测控和计算，使得软件的运行更为合理可靠。-This article mainly introduces the method to generate the PWM signal by using MCS-51 single-chip computer to control the speed of a D.C. motor. It also clarifies the principles of PWM and the way to adjust the duty cycle of PWM signal. In addition, IR2110 has been used as an actuating device of the power amplifier circuit which controls the speed of rotation of D.C. motor. What’s more, tachogenerator is used in this system to measure the speed of D.C. motor. The result of the measurement is sent to A/D converter after passing the filtering circuit, and finally the feedback single is stored in the single-chip computer and participates in a PI calculation. As for the software, this article introduces in detail the idea of the programming and how to make it.
Key words: PWM signal tachogenerator PI calculation
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Size: 1024 |
Author:陈与 |
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Description: 利用实验仪上的D/A变换电路，输出-8V至+8V电压，控制直流电机。改变输出电压值，改变电机转速。用8051的定时器0生成单位时间，由定时器/计数器1对单位时间内的脉冲计数，计算电机转速。参考数码管实验，将电机的实际转速在数码管上显示出来。-Experimental apparatus on the D/A converter output voltage of-8V to+8 V, control DC motor. Change the output voltage to change the motor speed. 8051 Timer 0 with the unit of time generated by the Timer/Counter 1 on the pulse count per unit time to calculate the motor speed. Reference to the digital control experiment, the actual speed of the motor control on the digital display. Platform: |
Size: 2048 |
Author:zt910 |
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Description: 基于8051单片机的直流电机驱动程序，可实现调速、正反转控制-8051 based on the DC motor driver can achieve speed control, positive control Platform: |
Size: 1024 |
Author:周飞跃 |
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Description: 基于8051单片机控制的直流电机PWM调速系统设计,可以用来学习51单片机。可以控制小型直流电机-Design of PWM DC motor speed control system based on 8051 single chip control, can be used to learn 51 mcu. Can control a small DC motor Platform: |
Size: 1593344 |
Author:jiajia |
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Search - speed control DC motor 8051