Current measurement circuit and method of diagnosing faults in same

Current measurement circuit and method of diagnosing faults in same

A current measurement circuit includes first and second input nodes (1a, 1b) which receive the respective voltages at either side of a resistive element (1) through which electrical current can flow, a differential amplifier means (6) which produces an output signal indicative of the difference in v...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CROZIER STEPHEN EDWIN, WILLIAMS ANDREW JAMES STEPHEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator CROZIER STEPHEN EDWIN
WILLIAMS ANDREW JAMES STEPHEN
description A current measurement circuit includes first and second input nodes (1a, 1b) which receive the respective voltages at either side of a resistive element (1) through which electrical current can flow, a differential amplifier means (6) which produces an output signal indicative of the difference in voltage between its input terminals, a controllable voltage source for selectively applying an offset voltage to at least one input of the differential amplifier (6) in response to a control signal, a control signal generator which generates the control signal applied to the voltage source such thatat a first instance an offset voltage is applied which is greater than that applied at a second instance, and a diagnostic means which is adapted to identify faults present in the electrical path between the first input node and the respective input to the amplifier by comparing the output from the amplifier at the first instant when the offset voltage is applied and at the second instant withoutthe offset voltage.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN101283282BB</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN101283282BB</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN101283282BB3</originalsourceid><addsrcrecordid>eNqNirEKwjAQQLM4iPoPh7tg06VzQ8XJyb0cyaUeNJeSS_5fBT_A6T0eb2-ca6WQVEiE2gqlr3suvnEFlPDp9ZUD5AiBcZGsLAtEbGtVYAHFREezi7gqnX48mPNterr7hbY8k27oSajO7tFdOzv0drDj2P81vQHzLjL8</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Current measurement circuit and method of diagnosing faults in same</title><source>esp@cenet</source><creator>CROZIER STEPHEN EDWIN ; WILLIAMS ANDREW JAMES STEPHEN</creator><creatorcontrib>CROZIER STEPHEN EDWIN ; WILLIAMS ANDREW JAMES STEPHEN</creatorcontrib><description>A current measurement circuit includes first and second input nodes (1a, 1b) which receive the respective voltages at either side of a resistive element (1) through which electrical current can flow, a differential amplifier means (6) which produces an output signal indicative of the difference in voltage between its input terminals, a controllable voltage source for selectively applying an offset voltage to at least one input of the differential amplifier (6) in response to a control signal, a control signal generator which generates the control signal applied to the voltage source such thatat a first instance an offset voltage is applied which is greater than that applied at a second instance, and a diagnostic means which is adapted to identify faults present in the electrical path between the first input node and the respective input to the amplifier by comparing the output from the amplifier at the first instant when the offset voltage is applied and at the second instant withoutthe offset voltage.</description><language>chi ; eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2012</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20120530&amp;DB=EPODOC&amp;CC=CN&amp;NR=101283282B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20120530&amp;DB=EPODOC&amp;CC=CN&amp;NR=101283282B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CROZIER STEPHEN EDWIN</creatorcontrib><creatorcontrib>WILLIAMS ANDREW JAMES STEPHEN</creatorcontrib><title>Current measurement circuit and method of diagnosing faults in same</title><description>A current measurement circuit includes first and second input nodes (1a, 1b) which receive the respective voltages at either side of a resistive element (1) through which electrical current can flow, a differential amplifier means (6) which produces an output signal indicative of the difference in voltage between its input terminals, a controllable voltage source for selectively applying an offset voltage to at least one input of the differential amplifier (6) in response to a control signal, a control signal generator which generates the control signal applied to the voltage source such thatat a first instance an offset voltage is applied which is greater than that applied at a second instance, and a diagnostic means which is adapted to identify faults present in the electrical path between the first input node and the respective input to the amplifier by comparing the output from the amplifier at the first instant when the offset voltage is applied and at the second instant withoutthe offset voltage.</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNirEKwjAQQLM4iPoPh7tg06VzQ8XJyb0cyaUeNJeSS_5fBT_A6T0eb2-ca6WQVEiE2gqlr3suvnEFlPDp9ZUD5AiBcZGsLAtEbGtVYAHFREezi7gqnX48mPNterr7hbY8k27oSajO7tFdOzv0drDj2P81vQHzLjL8</recordid><startdate>20120530</startdate><enddate>20120530</enddate><creator>CROZIER STEPHEN EDWIN</creator><creator>WILLIAMS ANDREW JAMES STEPHEN</creator><scope>EVB</scope></search><sort><creationdate>20120530</creationdate><title>Current measurement circuit and method of diagnosing faults in same</title><author>CROZIER STEPHEN EDWIN ; WILLIAMS ANDREW JAMES STEPHEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN101283282BB3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2012</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>CROZIER STEPHEN EDWIN</creatorcontrib><creatorcontrib>WILLIAMS ANDREW JAMES STEPHEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CROZIER STEPHEN EDWIN</au><au>WILLIAMS ANDREW JAMES STEPHEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Current measurement circuit and method of diagnosing faults in same</title><date>2012-05-30</date><risdate>2012</risdate><abstract>A current measurement circuit includes first and second input nodes (1a, 1b) which receive the respective voltages at either side of a resistive element (1) through which electrical current can flow, a differential amplifier means (6) which produces an output signal indicative of the difference in voltage between its input terminals, a controllable voltage source for selectively applying an offset voltage to at least one input of the differential amplifier (6) in response to a control signal, a control signal generator which generates the control signal applied to the voltage source such thatat a first instance an offset voltage is applied which is greater than that applied at a second instance, and a diagnostic means which is adapted to identify faults present in the electrical path between the first input node and the respective input to the amplifier by comparing the output from the amplifier at the first instant when the offset voltage is applied and at the second instant withoutthe offset voltage.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_CN101283282BB
source esp@cenet
subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Current measurement circuit and method of diagnosing faults in same
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-15T21%3A39%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=CROZIER%20STEPHEN%20EDWIN&rft.date=2012-05-30&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN101283282BB%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true