基于USB总线的高速数据采集卡的设计  

Design of high-speed data acquisition board based on USB bus

作　　者：许聚武[1] 钱苏翔[1] 

机构地区：[1]江西理工大学机电工程学院,江西赣州341000

出　　处：《电测与仪表》2007年第12期44-47,共4页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(50575095);浙江省自然科学基金资助项目(Y104503)

摘　　要：本文给出一种基于USB总线的数据采集卡的设计方案和开发方法。介绍了PDIUSBD12芯片和MAX125芯片的性能及特点、芯片与MCU的接口电路。在此基础上,阐述了程序的总体设计思想及其层次结构,并给出了硬件设计电路和信号放大、隔离和滤波的设计方案。使用USB总线传输数据,为数据采集系统与计算机之间的通信提供了新的途径。The design scheme and developing method of a suit of data acquisition board which is based on USB bus are expatiated. In the paper, the performance and characteristic of PDIUSBD12 and max125 and the interface circuit between chip and MCU are described.In this foundation,then shows the idea of program design and hierarchy, the flow chart of main processing program and design of signal amplification, isolation and filtering is also given.Using USB bus to transfer data blazed a new way in communication between data acquisition system and computer.

关 键 词：信号调理电路 数据采集系统 MAX125 USB总线 PDIUSBD12 

分 类 号：TM930.114[电气工程—电力电子与电力传动]