Nonlinear circuit cancels the nonlinearity of a DC motor

This paper describes a way in which operational amplifiers may be combined with nonlinear circuit elements (for example diodes, transistors etc), to obtain analogue circuits presenting static nonlinear characteristic responses. These nonlinear circuits connected in series with a system presenting a...

Full description

Saved in:
Bibliographic Details
Published in:International journal of electronics 1998-02, Vol.84 (2), p.147-156
Main Authors: LYGOURAS, J. N, TARHANIDIS, K. N, TSALIDES, P, DIMITRIADIS, C. M
Format: Article
Language:English
Subjects:
Applied sciences
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Power electronics, power supplies
Regulation and control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper describes a way in which operational amplifiers may be combined with nonlinear circuit elements (for example diodes, transistors etc), to obtain analogue circuits presenting static nonlinear characteristic responses. These nonlinear circuits connected in series with a system presenting a symmetrical (to the y = x axis) static nonlinearity can result in an almost absolutely linear response to the total system. The nonlinear response between input voltage and rotational speed of a DC motor for small input voltages, which is known as the deadband nonlinearity, is given here as an example while the field of applications is boundless. The proposed circuits have been constructed and tested in our laboratory. Experimental results taken from the circuit linearizing the response of a DC motor are presented.
ISSN:0020-7217
1362-3060
DOI:10.1080/002072198134913