Online frequency and power factor measure
based on FPGA
Abstract: Online frequency and power factor measure is an important content on the field of electron measure, except to examine into measuring of signal , amplify , strain wave , compare and last number show part must realize with hardware, the others all adopt the of VHDL to program and design, combining to download on chip of a FPGA (Field Programmable Gate Array), the whole system is simplified very much, and can reach the same technical indicator. According to the needs of different one, can also programme download again, upgrade. FPGA device control core as system, its flexible scene can altering, can dispose ability again, very convenient to various kinds of improvement of the system, can also improve systematic performance further on the basis of altering hardware circuit. Have at a high speed, accurate, reliable, such advantages as anti-interference is better and programmable with the scene.
Key words: Frequency; Power factor; FPGA; VHDL