| 基于USB的DCP控制电路设计与应用 |
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| 引用本文： | 周李良,朱沙,孙未,严有波.基于USB的DCP控制电路设计与应用[J].物探化探计算技术,2008,30(6). |
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| 作者姓名： | 周李良 朱沙 孙未 严有波 |
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| 作者单位： | 1. 成都理工大学,核技术与自动化工程学院,四川,成都,610059
2. 中国测试技术研究院,四川,成都,610061 |
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| 基金项目： | 低频振动国家计量基准改造项目 |
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| 摘 要： | 传统的机械式电位器控制电路难以满足高精度的信号调节要求,而且具有调节不方便、体积大、重复性差等弱点;为此,利用USB即插即用的优点,设计了基于USB的DCP控制电路;这里详细介绍了USB设计模块、DCP控制模块、固件程序设计和应用程序设计;测试结果表明:该设计是成功的,在输入1 V的正弦信号情况下,输出信号的调节精度可达1 mV,实现了输出信号的高精度调节,具有一定应用前景。
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| 关 键 词： | MCU USB 数字电位器 CH372 |
Design and application of digital potentiometers control circuit based on USB |
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| ZHOU Li-liang,ZHU Sha,SUN Wei,et al..Design and application of digital potentiometers control circuit based on USB[J].Computing Techniques For Geophysical and Geochemical Exploration,2008,30(6). |
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| Authors: | ZHOU Li-liang ZHU Sha SUN Wei |
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| Institution: | ZHOU Li-liang1,ZHU Sha2,SUN Wei1,et al. |
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| Abstract: | The traditional mechanical potentiometer cannot meet the adjustment requests of the high-precision signals,and also it has the shortcomings of inconvenient to adjust,big volume,poor reproducibility,etc.So,taken the advantage of the plug and play merit of USB,the DCP control circuit based USB was designed.In the paper,the USB design module,DCP control module,the design of firmware program and application program were introduced in detail.In the case of 1V sine signal was inputted,the adjustment precision of output signal can be reached to 1mV,the test outcome shows that this design is successful.The high-precision adjustment of signal is implemented,it has certain application prospect. |
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| Keywords: | MCU USB DCP CH372 |
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