The problem of minimum time frequency transitions in phase-locked loops with both phase and frequency controls applied is investigated using Pontryagin's maximum principle. Typically, a type II secondorder loop with a damping ratio of 0.707 subjected to a step change in the frequency of its input signal is considered and switchless control strategies that force the transients in the loop to settle down in minimum time are obtained.
Switchless Control Strategies for Minimum Time Frequency Transitions in Phase-Locked Loops
IEEE Transactions on Aerospace and Electronic Systems ; AES-5 , 6 ; 984-988
1969-11-01
1163998 byte
Article (Journal)
Electronic Resource
English
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