›› 2011, Vol. 24 ›› Issue (6): 108-.

• 论文 • 上一篇    下一篇

基于DDS的励磁恒流源设计

马仔悦,王京梅,孙俊,李莉   

  1. (电子科技大学 微电子与固体电子学院,四川 成都 610054)
  • 出版日期:2011-06-15 发布日期:2011-06-14
  • 作者简介:马仔悦(1982—),男,硕士研究生。研究方向:自动测量技术。王京梅(1968—),女,副教授,硕士生导师。研究方向:电力电子技术,电源管理与测试。

Design of a Signal Generator for the Magnetic Material Tester Based on DDS

 MA Zaiyue, WANG Jingmei, SUN Jun, LI Li   

  1. (School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China)
  • Online:2011-06-15 Published:2011-06-14

摘要:

针对某型磁性材料性能测试仪激励恒流源的具体要求,采用了基于直接数字频率合成技术的信号发生器设计方法,重点研究了由FPGA设计DDS信号发生器的系统设计原理、硬件构成,以及在 Quartus开发环境下,采用硬件描述语言Verilog HDL完成信号发生器的累加器、波形存储表、幅度控制及滤波控制功能,并使用Modelsim进行仿真分析。实验结果表明,该信号发生器能较好地产生所需激励信号,符合设计技术指标。

关键词: 直接数字频率合成;现场可编程门阵列;信号源;磁性测量

Abstract:

This paper introduces a new design method of designing the signal generator based on DDS in view of the specific requirements of excitation signal source for a certain type of magnetic material test equipment.On the basis of Altera Corporation's FPGA device,the design elements,hardware of the signal source as well as its realization in Quartus are given.The result shows that the signal generator can generate the required excitation signals preferably and meet the technical specifications of the design.

Key words: DDS;FPGA;signal generator;magnetic measurement

中图分类号: 

  • TN79