| CPLD在电机测速系统中的应用 |
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| 引用本文： | 王滢,郭小舟,蒋启龙.CPLD在电机测速系统中的应用[J].电子科技,2005(5):51-53. |
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| 作者姓名： | 王滢 郭小舟 蒋启龙 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 摘 要： | 通过对测周和测频两种方法的比较,给出了一种M/T法对电机速度进行检测.该方法根据电机的转速变化,通过设定预置门控信号的时间值,确定测周与测频法间进行切换的电机转速值,从而自动完成测周和测频法间的切换,故具有检测范围宽和检测结果准确的优点.并给出了M/T法的检测原理和具体工作过程,采用Altera公司的EPM7128芯片实现了对电机测速电路的设计.最后对电路进行了仿真分析,其结果表明该设计是可行的.
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| 关 键 词： | 测速 电机 MT法 |
| 修稿时间： | 2005年1月18日 |
The Application of CPLD in Motors Speed Measuring System |
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| Wang Ying,Guo Xiaozhou,Jiang Qilong.The Application of CPLD in Motors Speed Measuring System[J].Electronic Science and Technology,2005(5):51-53. |
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| Authors: | Wang Ying Guo Xiaozhou Jiang Qilong |
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| Abstract: | By comparing period-measuring with frequency-measuring, this paper puts forward the method of M/T for speed detection in motors, which, according to the change in the motor's rotation rate, automatically realizes the switch between period-measuring and frequency- measuring by setting the time of the pre-setting signal. This method, therefore, has the advantages of wide detection scope and accurate detection results . The EPM7128 chip by Altera Company is adopted for the design of the speed detecting circuit. Simulation and analysis prove the circuit to be reasonable. |
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| Keywords: | CPLD |
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