DocumentCode
959810
Title
Linearization of optoisolators
Author
Padmanabhan, S.
Author_Institution
Encardio-Rite Electronics (P) Ltd., Lucknow, India
Volume
68
Issue
6
fYear
1980
fDate
6/1/1980 12:00:00 AM
Firstpage
738
Lastpage
740
Abstract
Existing single-loop feedback methods of linearization do not consider the conflicting aspect of linearity and longer lifetime of the LED´s. In this correspondence, a multiple-loop feedback system is proposed in which the biasing current of the LED is as low as 2 mA. This multiple-loop arrangement has the property of zero-sensitivity system and the system gain is independent of the parameters of the system. The gain is given by the ratio of two resistors. The method avoids the use of slew rate limited operational amplifiers.
Keywords
Circuits; Equations; Feedback loop; Filters; Light emitting diodes; Linearity; Negative feedback; Negative feedback loops; Operational amplifiers; Resistors;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1980.11726
Filename
1455995
Link To Document