| 数字电位器控制电路的设计与应用 |
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| 引用本文： | 曹文,刘春梅,郭友晋. 数字电位器控制电路的设计与应用[J]. 电测与仪表, 2007, 44(1): 55-57,36 |
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| 作者姓名： | 曹文 刘春梅 郭友晋 |
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| 作者单位： | 1. 西南科技大学,信息工程学院,四川,绵阳,621010
2. 中国第二重型机械集团,工艺研究所,四川,德阳,618013 |
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| 基金项目： | 西南科技大学校科研和教改项目 |
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| 摘 要： | 鼠标用控制芯片TP8452将红外光电编码器检测到的脉冲信号进行编码处理,按照P/S2协议传递给控制单元;控制单元根据译码后得到的脉冲数量和方向参数调节数字电位器组合的触点位置,以极低成本实现高分辨率旋转式数字电位器,用来取代传统的机械式多圈电位器.
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| 关 键 词： | 数字电位器 PS/2 分辨率 |
| 文章编号： | 1001-1390（2007）01-0055-03 |
| 修稿时间： | 2006-10-15 |
The research and design of rotating digital potentiometers with better resolution |
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| CAO Wen,LIU Chun-mei,GUO You-jin. The research and design of rotating digital potentiometers with better resolution[J]. Electrical Measurement & Instrumentation, 2007, 44(1): 55-57,36 |
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| Authors: | CAO Wen LIU Chun-mei GUO You-jin |
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| Affiliation: | 1.Southwest University of Science and Technology, Mianyang 621010,Sichuang, China; 2.China National Erzhong Group Co.,Ltd., Deyang 618013 ,Sichuang,China |
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| Abstract: | TP8452,which is used on mouse controller,encodes the pulse which is detected by infrared optical-electric modules.The encoded data is transferred to MCU according to ps/2 protocol.The MCU translates the receiving data to the amount and direction of pulse,then adjusts digital potentiometer's position.In this way,Rotating Digital Potentiometer is get with much lower cost,which is used to replace traditional mechanical multi-turn rotational potentiometer. |
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| Keywords: | digital potentiometers PS/2 resolution |
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