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Title: Self-calibrating multiplexer circuit

Abstract

A time domain multiplexer system with automatic determination of acceptable multiplexer output limits, error determination, or correction is comprised of a time domain multiplexer, a computer, a constant current source capable of at least three distinct current levels, and two series resistances employed for calibration and testing. A two point linear calibration curve defining acceptable multiplexer voltage limits may be defined by the computer by determining the voltage output of the multiplexer to very accurately known input signals developed from predetermined current levels across the series resistances. Drift in the multiplexer may be detected by the computer when the output voltage limits, expected during normal operation, are exceeded, or the relationship defined by the calibration curve is invalidated.

Inventors:
 [1]
  1. North Huntingdon, PA
Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
870927
Patent Number(s):
US 5625314
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC11-89PN38014
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
self-calibrating; multiplexer; circuit; time; domain; automatic; determination; acceptable; output; limits; error; correction; comprised; computer; constant; current; source; capable; distinct; levels; series; resistances; employed; calibration; testing; linear; curve; defining; voltage; defined; determining; accurately; input; signals; developed; predetermined; drift; detected; expected; normal; operation; exceeded; relationship; invalidated; series resistance; calibration curve; constant current; output voltage; voltage output; input signals; normal operation; input signal; current source; time domain; source capable; current level; current levels; domain multiplexer; /327/714/

Citation Formats

Wahl, Chris P. Self-calibrating multiplexer circuit. United States: N. p., 1997. Web.
Wahl, Chris P. Self-calibrating multiplexer circuit. United States.
Wahl, Chris P. Wed . "Self-calibrating multiplexer circuit". United States. https://www.osti.gov/servlets/purl/870927.
@article{osti_870927,
title = {Self-calibrating multiplexer circuit},
author = {Wahl, Chris P},
abstractNote = {A time domain multiplexer system with automatic determination of acceptable multiplexer output limits, error determination, or correction is comprised of a time domain multiplexer, a computer, a constant current source capable of at least three distinct current levels, and two series resistances employed for calibration and testing. A two point linear calibration curve defining acceptable multiplexer voltage limits may be defined by the computer by determining the voltage output of the multiplexer to very accurately known input signals developed from predetermined current levels across the series resistances. Drift in the multiplexer may be detected by the computer when the output voltage limits, expected during normal operation, are exceeded, or the relationship defined by the calibration curve is invalidated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

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