Izvorni znanstveni članak
https://doi.org/10.7305/automatika.2016.07.769
Analysis and Application of FLL based on the Processing of the Input and Output Periods
Đjurđe Perišić
; Faculty of Information Technology, Slobomir P University, PF 70 Pavlovica put 76, 76300 Slobomir, Republic of Srpska, BiH
Aleksandar Žorić
; Faculty of Technical Science, Kneza Milosa 7, 38220 Kosovska Mitrovica, Serbia
Marko Perišić
; Milsped, Strazilovska 7, 11272 Belgrade, Dobanovci, Serbia
Dragan Mitić
; Institute Iritel AD, Batajnicki put 23, 11080, Belgrade, Serbia
Sažetak
This paper describes development, analysis, implementation and application of one recursive Frequency Locked Loop (FLL) based on the measurement and processing of the periods of the input and output signals. FLL is the linear discrete system of the first order, which regulates its output once per the input period. The FLL parameters are defined by the frequencies of three clocks. These frequencies have to be mutually in defined relationship for the stable FLL. FLL provides a wide range of properties useful for different applications. The stability and the other conditions, under which the described system can have the properties of a FLL, are investigated using the Z transform analyses. Using mathematical analyses and the simulations of this FLL it is shown that, for the corresponding system parameters, FLL possesses the power noise rejection ability. This FLL can also be used for the different predicting and tracking applications, for the measurements of the frequency of the input signal in the noise environments and for the other applications. The oscilloscope picture of the characterized input and output signals, recorded on the realized FLL, is presented.
Ključne riječi
Digital circuit; Frequency Locked Loop; Phase Locked Loop; Recursive feedback algorithm
Hrčak ID:
165520
URI
Datum izdavanja:
1.9.2016.
Posjeta: 2.277 *