Title :
Modeling of a phase-locked loop servo controller with encoder feedback
Author :
Adkins, Christopher A. ; Marra, Michael A.
Author_Institution :
Lexmark Int. Inc., Lexington, KY, USA
Abstract :
This paper presents a model of a phase-locked loop servo control mechanism using describing function analysis. A closed-loop control system is obtained by replacing the voltage-controlled oscillator of the phase-locked loop with a servo system with encoder feedback. In this way, the velocity of the servo is controlled via the phase-locked loop. A model of the system is obtained using describing function methodology. Control analysis of the resulting nonlinear system is also discussed
Keywords :
closed loop systems; describing functions; encoding; feedback; nonlinear control systems; phase locked loops; servomechanisms; velocity control; closed-loop system; describing function analysis; encoder; feedback; nonlinear system; phase-locked loop; servomechanism; velocity control; Control system analysis; Control systems; Feedback loop; Nonlinear control systems; Phase locked loops; Servomechanisms; Servosystems; Velocity control; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Southeastcon '99. Proceedings. IEEE
Conference_Location :
Lexington, KY
Print_ISBN :
0-7803-5237-8
DOI :
10.1109/SECON.1999.766091
