DRIVING CIRCUIT OF MAGNETIC IMPEDANCE EFFECT ELEMENT
PROBLEM TO BE SOLVED: To reduce consumption power, eliminate difference of detection sensitivity which is due to the direction of an external magnetic field, and simplify structure. SOLUTION: This driving circuit is provided with a magnetic impedance effect element 5, an element driving circuit 3 ap...
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| creator | SUDOU YOSHIHIRO OUCHI JUNICHI |
| description | PROBLEM TO BE SOLVED: To reduce consumption power, eliminate difference of detection sensitivity which is due to the direction of an external magnetic field, and simplify structure. SOLUTION: This driving circuit is provided with a magnetic impedance effect element 5, an element driving circuit 3 applying a driving pulse to the element 5, a detection coil 10 wound around the element 5, a first sample-hold circuit 11 and a second sample-hold circuit 12 which hold a voltage detected by the detection coil 10, and a differential amplifier 9 outputting a voltage of difference between a voltage held by a first sample-hold circuit and a voltage held by the second sample-hold circuit 12. The detection coil 10 detects a voltage whose polarity is reverse at the rise time and the fall time of the driving pulse. A voltage of one polarity is held by the first sample-hold circuit 11, and a voltage of the other polarity is held by the second sample-hold circuit 12. |
| format | Patent |
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SOLUTION: This driving circuit is provided with a magnetic impedance effect element 5, an element driving circuit 3 applying a driving pulse to the element 5, a detection coil 10 wound around the element 5, a first sample-hold circuit 11 and a second sample-hold circuit 12 which hold a voltage detected by the detection coil 10, and a differential amplifier 9 outputting a voltage of difference between a voltage held by a first sample-hold circuit and a voltage held by the second sample-hold circuit 12. The detection coil 10 detects a voltage whose polarity is reverse at the rise time and the fall time of the driving pulse. A voltage of one polarity is held by the first sample-hold circuit 11, and a voltage of the other polarity is held by the second sample-hold circuit 12.</description><edition>7</edition><language>eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2000</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=20001208&DB=EPODOC&CC=JP&NR=2000338207A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20001208&DB=EPODOC&CC=JP&NR=2000338207A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUDOU YOSHIHIRO</creatorcontrib><creatorcontrib>OUCHI JUNICHI</creatorcontrib><title>DRIVING CIRCUIT OF MAGNETIC IMPEDANCE EFFECT ELEMENT</title><description>PROBLEM TO BE SOLVED: To reduce consumption power, eliminate difference of detection sensitivity which is due to the direction of an external magnetic field, and simplify structure. SOLUTION: This driving circuit is provided with a magnetic impedance effect element 5, an element driving circuit 3 applying a driving pulse to the element 5, a detection coil 10 wound around the element 5, a first sample-hold circuit 11 and a second sample-hold circuit 12 which hold a voltage detected by the detection coil 10, and a differential amplifier 9 outputting a voltage of difference between a voltage held by a first sample-hold circuit and a voltage held by the second sample-hold circuit 12. The detection coil 10 detects a voltage whose polarity is reverse at the rise time and the fall time of the driving pulse. A voltage of one polarity is held by the first sample-hold circuit 11, and a voltage of the other polarity is held by the second sample-hold circuit 12.</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>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBxCfIM8_RzV3D2DHIO9QxR8HdT8HV093MN8XRW8PQNcHVx9HN2VXB1c3N1DlFw9XH1dfUL4WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgYGBsbGFkYG5o7GRCkCAPZiJ4E</recordid><startdate>20001208</startdate><enddate>20001208</enddate><creator>SUDOU YOSHIHIRO</creator><creator>OUCHI JUNICHI</creator><scope>EVB</scope></search><sort><creationdate>20001208</creationdate><title>DRIVING CIRCUIT OF MAGNETIC IMPEDANCE EFFECT ELEMENT</title><author>SUDOU YOSHIHIRO ; OUCHI JUNICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2000338207A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</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>SUDOU YOSHIHIRO</creatorcontrib><creatorcontrib>OUCHI JUNICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUDOU YOSHIHIRO</au><au>OUCHI JUNICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DRIVING CIRCUIT OF MAGNETIC IMPEDANCE EFFECT ELEMENT</title><date>2000-12-08</date><risdate>2000</risdate><abstract>PROBLEM TO BE SOLVED: To reduce consumption power, eliminate difference of detection sensitivity which is due to the direction of an external magnetic field, and simplify structure. SOLUTION: This driving circuit is provided with a magnetic impedance effect element 5, an element driving circuit 3 applying a driving pulse to the element 5, a detection coil 10 wound around the element 5, a first sample-hold circuit 11 and a second sample-hold circuit 12 which hold a voltage detected by the detection coil 10, and a differential amplifier 9 outputting a voltage of difference between a voltage held by a first sample-hold circuit and a voltage held by the second sample-hold circuit 12. The detection coil 10 detects a voltage whose polarity is reverse at the rise time and the fall time of the driving pulse. A voltage of one polarity is held by the first sample-hold circuit 11, and a voltage of the other polarity is held by the second sample-hold circuit 12.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | DRIVING CIRCUIT OF MAGNETIC IMPEDANCE EFFECT ELEMENT |
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