| 脉搏波分析用多路正弦恒流源设计 |
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| 引用本文： | 欧阳家淦,黄志强. 脉搏波分析用多路正弦恒流源设计[J]. 电子技术应用, 2008, 34(10) |
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| 作者姓名： | 欧阳家淦 黄志强 |
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| 作者单位： | 同济大学,电子与信息工程学院,上海,200092;同济大学,电子与信息工程学院,上海,200092 |
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| 摘 要： | 介绍了一种用于脉搏波分析的多路正弦恒流源系统设计方案。该系统主要由PC机用户接口程序、单片机控制电路、DDS正弦波生成电路、滤波器、数字幅度控制电路以及电压-电流转换电路组成。PC机用户程序通过RS232接口与总控AVR单片机通信;总控AVR单片机通过TWI(Two Wire Interface)总线与下位单片机通信。该系统实现了多路正弦恒流源的生成与控制。
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| 关 键 词： | 脉搏波分析 正弦恒流源 DDS TWI |
Design of a multi-channel sine current source used for pulse wave analysis |
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| OUYANG Jia Gan,HUANG Zhi Qiang. Design of a multi-channel sine current source used for pulse wave analysis[J]. Application of Electronic Technique, 2008, 34(10) |
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| Authors: | OUYANG Jia Gan HUANG Zhi Qiang |
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| Abstract: | This paper introduces a design of multi-channel constant sine current sources used for pulse wave analysis.The design consists of six major parts, including PC client-interface program, MCU control circuit, DDS sine signal generating circuit, filters, digital amplitude control circuit and voltage-current converting circuit.The PC programs communicate with the major control-ling AVR MCU by RS232 interface, and the major controlling MCU sends the data to the lower-end MCUs through TWI.By this way, the system ... |
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| Keywords: | DDS TWI |
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