Circuit arrangement for monitoring the operating range of an operational amplifier
The invention relates to a circuit arrangement for monitoring the operating range of an operational amplifier (OP). For this purpose, the operational amplifier (OP) is followed by a rectifier bridge circuit (D1...D4) in the DC branch of which the light-emitting-diode section of an optocoupler (OK) i...
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creator | POSCHMANN,WERNER STRAUB,HERBERT |
description | The invention relates to a circuit arrangement for monitoring the operating range of an operational amplifier (OP). For this purpose, the operational amplifier (OP) is followed by a rectifier bridge circuit (D1...D4) in the DC branch of which the light-emitting-diode section of an optocoupler (OK) is arranged. A monitoring circuit (ÜS) is used for detecting when the phototransistor of the optocoupler becomes conductive. A fault indication can then be triggered. The operating range of the operational amplifier to be monitored is set by a Z diode (Z) which is connected in series with the light-emitting-diode section of the optocoupler. To protect the light-emitting diode of the optocoupler against overload, a series resistor (RV) can be additionally connected in series with the light-emitting-diode section of the optocoupler and the Z diode. |
format | Patent |
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For this purpose, the operational amplifier (OP) is followed by a rectifier bridge circuit (D1...D4) in the DC branch of which the light-emitting-diode section of an optocoupler (OK) is arranged. A monitoring circuit (ÜS) is used for detecting when the phototransistor of the optocoupler becomes conductive. A fault indication can then be triggered. The operating range of the operational amplifier to be monitored is set by a Z diode (Z) which is connected in series with the light-emitting-diode section of the optocoupler. To protect the light-emitting diode of the optocoupler against overload, a series resistor (RV) can be additionally connected in series with the light-emitting-diode section of the optocoupler and the Z diode.</description><language>eng ; ger</language><subject>AMPLIFIERS ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY</subject><creationdate>1984</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&date=19840830&DB=EPODOC&CC=DE&NR=3305627A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840830&DB=EPODOC&CC=DE&NR=3305627A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>POSCHMANN,WERNER</creatorcontrib><creatorcontrib>STRAUB,HERBERT</creatorcontrib><title>Circuit arrangement for monitoring the operating range of an operational amplifier</title><description>The invention relates to a circuit arrangement for monitoring the operating range of an operational amplifier (OP). For this purpose, the operational amplifier (OP) is followed by a rectifier bridge circuit (D1...D4) in the DC branch of which the light-emitting-diode section of an optocoupler (OK) is arranged. A monitoring circuit (ÜS) is used for detecting when the phototransistor of the optocoupler becomes conductive. A fault indication can then be triggered. The operating range of the operational amplifier to be monitored is set by a Z diode (Z) which is connected in series with the light-emitting-diode section of the optocoupler. To protect the light-emitting diode of the optocoupler against overload, a series resistor (RV) can be additionally connected in series with the light-emitting-diode section of the optocoupler and the Z diode.</description><subject>AMPLIFIERS</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNikEKwkAMAPfiQap_yAcEdVHPUls8i_cSSrYGdpMljf8XRe-ehhlmGW4t2_hkBzRDmaiQOCQ1KCrsaiwT-INAKxn62z4baAKUX1XBDFhq5sRkq7BImGdaf9kE6Lt7e91Q1YHmiiMJ-XDpYtwejvvTeRf_WF7kQDgD</recordid><startdate>19840830</startdate><enddate>19840830</enddate><creator>POSCHMANN,WERNER</creator><creator>STRAUB,HERBERT</creator><scope>EVB</scope></search><sort><creationdate>19840830</creationdate><title>Circuit arrangement for monitoring the operating range of an operational amplifier</title><author>POSCHMANN,WERNER ; STRAUB,HERBERT</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE3305627A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>1984</creationdate><topic>AMPLIFIERS</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><toplevel>online_resources</toplevel><creatorcontrib>POSCHMANN,WERNER</creatorcontrib><creatorcontrib>STRAUB,HERBERT</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>POSCHMANN,WERNER</au><au>STRAUB,HERBERT</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Circuit arrangement for monitoring the operating range of an operational amplifier</title><date>1984-08-30</date><risdate>1984</risdate><abstract>The invention relates to a circuit arrangement for monitoring the operating range of an operational amplifier (OP). For this purpose, the operational amplifier (OP) is followed by a rectifier bridge circuit (D1...D4) in the DC branch of which the light-emitting-diode section of an optocoupler (OK) is arranged. A monitoring circuit (ÜS) is used for detecting when the phototransistor of the optocoupler becomes conductive. A fault indication can then be triggered. The operating range of the operational amplifier to be monitored is set by a Z diode (Z) which is connected in series with the light-emitting-diode section of the optocoupler. To protect the light-emitting diode of the optocoupler against overload, a series resistor (RV) can be additionally connected in series with the light-emitting-diode section of the optocoupler and the Z diode.</abstract><oa>free_for_read</oa></addata></record> |
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language | eng ; ger |
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subjects | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY |
title | Circuit arrangement for monitoring the operating range of an operational amplifier |
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