单片机与嵌入式系统应用Issue(7)：19-21,3.
高分辨率数字电位器的软件实现
Software Implementation of High Resolution Digital Potentiometer
摘要
Abstract
The accuracy of digital potentiometer is improved by connecting four 64-tap position digital potentiometers in serial or parallel controlled by a special software . Two potentiometers are cascaded and the remaining two are used to set the levels of center taps of the two independent digital potentiometers, which should always be one position apart. MCU controlls the wipers of potentiometers according to spectific algorithm. Experimental results show that an 8 001-tap position nonvolatile digital potentiometers can easily be implemented,and exhibit a typical tap-to-tap resolution of 0.008%.关键词
高分辨率数字电位器/X9241/单片机Key words
high resolution digital potentiometer/X9241/MCU分类
信息技术与安全科学引用本文复制引用
葛惠民,陈基伟..高分辨率数字电位器的软件实现[J].单片机与嵌入式系统应用,2009,(7):19-21,3.基金项目
国家高技术研究发展计划(编号: 2006AA02Z472),国家自然科学基金(批准号: 90508001,10574081),教育部重点实验室项目(编号: 306020) （编号: 2006AA02Z472）
浙江省重大科技专项(编号:2008C11G6050001),浙江省教育厅科研项目(编号:20060023),浙江机电职业技术学院科技孵化基金项目(编号:04080332). （编号:2008C11G6050001）
