| 基于$3C2440A的直流电机转速控制系统设计 |
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| 引用本文： | 赵健,孙耀杰. 基于$3C2440A的直流电机转速控制系统设计[J]. 现代电子技术, 2011, 34(3): 157-159 |
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| 作者姓名： | 赵健 孙耀杰 |
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| 作者单位： | 河北工业大学,信息工程学院,天津,300401 |
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| 摘 要： | 阐述了基于S3C2440A的直流电机调速系统设计。为了方便快速地实现对直流电机转速及转向的控制，设计了以三星公司的S3C2440A处理器和L298N电机驱动芯片构成的控制系统。系统通过设置处理器的相关寄存器控制PWM输出的占空比，从而实现对直流电机转速的调整。详细介绍了S3C2440A处理器中PWM的工作原理及相关寄存器的设置，并给出控制系统的硬件及软件设计，然后通过数字示波器对输出的PWM信号进行观察。通过实验证明，系统能成功地实现要求的功能。
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| 关 键 词： | S3C2440A L298N 直流电机 转速控制 PWM |
Design of S3C2440A-based Velocity Control System for DC Motors |
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| ZHAO Jian,SUN Yao-jie. Design of S3C2440A-based Velocity Control System for DC Motors[J]. Modern Electronic Technique, 2011, 34(3): 157-159 |
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| Authors: | ZHAO Jian SUN Yao-jie |
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| Affiliation: | ZHAO Jian,SUN Yao-jie(College of Information Engineering,Hebei University of Technology,Tianjin 300401,China) |
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| Abstract: | The design of S3C2440A-based velocity regulation system of DC motors is described.In order to control the rotary speed and direction of DC Motors,the control system is mainly formed by the motor drive chip L298N and S3C2440A processor made by Samsung.The duty ratio of PWM output is controled by the correlative registers in the processor to realize the regulation of the rotate speed and direction for DC Motors.The design of the hardware and software in the control system is introduced.The output PWM signal i... |
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| Keywords: | S3C2440A L298N PWM |
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