摘要
结合低电压电泳芯片的电压控制,提出了一种基于FPGA的4路信号发生器的设计方案.介绍了直接频率合成技术(DDS)的基本工作原理,利用IP核设计4路信号发生器的基本流程.实验结果表明:该信号发生器可通过调整波形控制字、频率控制字、相位控制字,控制输出不同波形、不同频率、不同相位的4路信号,且信号波形能满足低电压电泳芯片移动电场控制需要.
In this paper,a design scheme of four-channel signal generator based on FPGA is presented,which is used to control the voltage of the low voltage electrophoresis chip.The basic operating principle of direct frequency synthesis technology（ DDS） and the basic process of the design of four-channel signal generator based on IP core are illuminated.The experimental results show that the generator can be used to generate the four-channel signal by adjusting the controlling word of waveform,frequency and phase,and the signal waveform can meet the control demand for the moving electric field of low voltage electrophoresis chip.
出处
《湖北民族学院学报（自然科学版）》
CAS
2016年第2期203-206,218,共5页
Journal of Hubei Minzu University(Natural Science Edition)
基金
国家自然科学基金项目(61263030/61463014)
