Optimum Nonuniform Error Quantizers for Feedback Control Systems

[+] Author and Article Information
D. E. Limbert, C. K. Taft

Case Institute of Technology, Cleveland, Ohio

J. Basic Eng 89(2), 365-370 (Jun 01, 1967) (6 pages) doi:10.1115/1.3609609 History: Received August 22, 1966; Online November 03, 2011


The effects of nonuniform error quantization on feedback control system stability from the viewpoint of the existence of limit cycles are discussed. The existence of limit cycle is investigated for both step and ramp inputs and results are compared to actual system simulation. Guidelines are given for the selection of a quantizer to allow maximum velocity for a given number of error quantization levels with no loss of position accuracy.

Copyright © 1967 by ASME
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