摘要
提出了一种采用数字合成与数字移相技术设计高精度数字式三相基准正弦波信号发生器的方法。系统由VHDL编制程序并下载至Xilinx公司的SpartanⅡ系列XC2S100E-6PQ208芯片上,加以简单的外围电路构成。实验表明采用该方法生成的三相基准正弦波具有频率精确度高、对称性好、波形失真小、频率和幅度均可数字式预置并可调节。
A kind of high-accuracy digital three-phase reference sine wave signal generator is designed by using digital method with phase-shifting technology. Programmed with VHDL, the program can be download to a Spartan Ⅱ series chip XC2S100e-6PQ208, Which is made by Xilinx Co. Ltd. The system is consisted of only one FPGA chip and simple periphery circuit. The experiment demonstrates that the kind of three-phase reference sine wave signal has the characteristics of high frequency precision, well-symmetry, low waveform distortion. The frequency and amplitude can be preseted and adjusted digtally.
出处
《电气应用》
北大核心
2005年第5期45-47,共3页
Electrotechnical Application
