【摘要】 以EP1C6T144C8为DDS数字核,运用DDS技术在Quartus环境中虚拟实现频率0 0093Hz～1MHz、步进0 0093Hz,幅度-8～8V、步进5mV,初相0～360°、步进0 176°,占空比0～1、步进0 05%,波形个数和直流分量步进可调的具有相位锁定功能的三通道任意信号产生,重点介绍其系统设计原理、FPGA设计、相位误差分析及功耗设计,实验表明该设计是切实可行的。更多还原

【Abstract】 A kind of three lines virtual arbitrary waveform generator with phases locked each other was introduced,in which EP1C6144C8 was used for digital core,DDS technique was applied for generating waveforms,whose frequency changed from 0.009 3 Hz to 1 MHz in 0.009 3 Hz step,voltage at -8～8 V in 5 mV,phase at 0～360° in 0.176°,duty cycle at 0～1 in 0.05%,the number of waveform and direct voltage could also be adjusted in step,the design principle of system,FPGA design,phase error analysis and dissipation power design were mainly given,experiment showed the design was feasible.更多还原