基于PXI总线控制的脉冲信号源模块设计

Design of Pulse Source Based on the Control of PXI Bus

中文关键词:  PXI总线  直接数字合成  FPGA

英文关键词:PXI local bus  direct digital synthesize(DDS)  FPGA

中文摘要:

      为解决多参数计量集成装置中对脉冲信号源的需求，设计了一种基于PXI总线控制的半正弦脉冲信号源。通过自主编程FPGA，实现了PXI总线接口控制功能，并基于该接口FPGA芯片，设计了基于DDS（直接数字合成）的、最大输出幅值9 V、负载50 Ω、底宽1~10 μs可调的半正弦脉冲信号源。经测试，该脉冲信号源输出稳定。

英文摘要:

      To meet the demand of the pulse source in the design of multi-parameter metrology system,one kind of half sine pulse generator is designed based on the control of PXI bus.The PXI local bus interface control module is designed by programming FPGA.Based on the FPGA chip,a pulse source that can output the maximum amplitude of 9 V and pulse width from 1 to 10 μs is designed.As the result of testing ,this the output of pulse source is stable.