Title :
Pull-In Range Determination for a Class of Phase-Locked Loops
Author :
De Maria, Giuseppe ; Sciavicco, Lorenzo
Author_Institution :
Istituto Elettrotecnico, University of Naples, 80125 Naples, Italy.
Abstract :
The synchronization of a controlled oscillator with external frequencies is investigated, and conditions for synchronization without cycle skipping are ascertained. Locking requirements are determined analytically by an indirect approach for a class of PLL´s embodying first-order linear filters. The validity of this analytical approach is supported by experimental observations and is justified by considerations on the region of attraction, which can be obtained by the procedure suggested.
Keywords :
Baseband; Circuits; Control systems; Feedback control; Frequency synchronization; Industrial electronics; Nonlinear filters; Phase locked loops; Stability; Voltage-controlled oscillators;
Journal_Title :
Industrial Electronics and Control Instrumentation, IEEE Transactions on
DOI :
10.1109/TIECI.1981.351063
