王宇，任晓红，张超，李静.基于FPGA的交流采样同步倍频算法及实现计[J].电测与仪表,2013,50(12):. .Alternating Current Sampling Synchronous Frequency Multiplication Algorithm and Implementation Based on FPGA[J].Electrical Measurement & Instrumentation,2013,50(12):.
基于FPGA的交流采样同步倍频算法及实现计
Alternating Current Sampling Synchronous Frequency Multiplication Algorithm and Implementation Based on FPGA
In order to ensure the accuracy of power parameter in power quality monitoring system, we need to alternating current sampling for it[1]. But in AC(alternating current) sampling, we need synchronization frequency doubling. Usually, it is difficult to change for multiple frequency doubling while we make the frequency tracking circuit for frequency doubling by phase lock loop CD4046. In this paper, using verilog HDL language, in view of the limitation of FPGA internal PLL, realizing frequency doubling of any low frequency and any high multiple of the jitter signal source through the way of counting frequency division. Finally, Confirming the correctness and availability of the algorithm through matlab simulation and oscilloscope test in providing hardware circuit.
