CONTROL DEVICE HAVING FUNCTION OF CORRECTING AD CONVERTER, AND METHOD OF CORRECTING AD CONVERTER
PROBLEM TO BE SOLVED: To provide a control device using an AD converter required to meet high accuracy which enables high performance control by reducing an error in the AD converter when an AC signal or a DC signal including a pulsating component is input as a controlled object.SOLUTION: A referenc...
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| description | PROBLEM TO BE SOLVED: To provide a control device using an AD converter required to meet high accuracy which enables high performance control by reducing an error in the AD converter when an AC signal or a DC signal including a pulsating component is input as a controlled object.SOLUTION: A reference AC signal is generated beforehand in a digital computing element, at least three points of the AC signal, consisting of a zero point (or intermediate value), a maximum value and a minimum value, are DA-converted, analog values thus converted are AD-converted before input into the digital computing element, a difference from the reference AC signal generated beforehand is detected to determine a range of error, and an AC signal considering the difference from the reference AC signal is reproduced to correct a control system AC signal for an error-based difference.
【課題】高精度が要求されるＡＤ変換器を用いた制御装置にあって、制御対象となる交流信号、または脈動成分を含んだ直流信号が入力される場合に、ＡＤ変換器による誤差を少なくすることで、高性能の制御を可能にする制御装置を提供する。【解決手段】デジタル演算器で基準となる交流信号を予め生成して、この交流信号の少なくともゼロ点（もしくは中間値）、最大値、最小値の３点をＤＡ変換し、この変換したアナログ値をＡＤ変換してデジタル演算器に入力させ、予め生成した基準となる交流信号との差分を検出して誤差の範囲を確定し、この基準となる交流信号との差分を考慮した交流信号を再現することにより、制御系の交流信号に対して誤差による差分を補正する。【選択図】図１ |
| format | Patent |
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【課題】高精度が要求されるＡＤ変換器を用いた制御装置にあって、制御対象となる交流信号、または脈動成分を含んだ直流信号が入力される場合に、ＡＤ変換器による誤差を少なくすることで、高性能の制御を可能にする制御装置を提供する。【解決手段】デジタル演算器で基準となる交流信号を予め生成して、この交流信号の少なくともゼロ点（もしくは中間値）、最大値、最小値の３点をＤＡ変換し、この変換したアナログ値をＡＤ変換してデジタル演算器に入力させ、予め生成した基準となる交流信号との差分を検出して誤差の範囲を確定し、この基準となる交流信号との差分を考慮した交流信号を再現することにより、制御系の交流信号に対して誤差による差分を補正する。【選択図】図１</description><language>eng ; jpn</language><subject>BASIC ELECTRONIC CIRCUITRY ; CODE CONVERSION IN GENERAL ; CODING ; DECODING ; ELECTRICITY</subject><creationdate>2015</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=20150226&DB=EPODOC&CC=JP&NR=2015039105A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150226&DB=EPODOC&CC=JP&NR=2015039105A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SATO MITSUTERU</creatorcontrib><creatorcontrib>TERUNUMA MUTSUHIRO</creatorcontrib><title>CONTROL DEVICE HAVING FUNCTION OF CORRECTING AD CONVERTER, AND METHOD OF CORRECTING AD CONVERTER</title><description>PROBLEM TO BE SOLVED: To provide a control device using an AD converter required to meet high accuracy which enables high performance control by reducing an error in the AD converter when an AC signal or a DC signal including a pulsating component is input as a controlled object.SOLUTION: A reference AC signal is generated beforehand in a digital computing element, at least three points of the AC signal, consisting of a zero point (or intermediate value), a maximum value and a minimum value, are DA-converted, analog values thus converted are AD-converted before input into the digital computing element, a difference from the reference AC signal generated beforehand is detected to determine a range of error, and an AC signal considering the difference from the reference AC signal is reproduced to correct a control system AC signal for an error-based difference.
【課題】高精度が要求されるＡＤ変換器を用いた制御装置にあって、制御対象となる交流信号、または脈動成分を含んだ直流信号が入力される場合に、ＡＤ変換器による誤差を少なくすることで、高性能の制御を可能にする制御装置を提供する。【解決手段】デジタル演算器で基準となる交流信号を予め生成して、この交流信号の少なくともゼロ点（もしくは中間値）、最大値、最小値の３点をＤＡ変換し、この変換したアナログ値をＡＤ変換してデジタル演算器に入力させ、予め生成した基準となる交流信号との差分を検出して誤差の範囲を確定し、この基準となる交流信号との差分を考慮した交流信号を再現することにより、制御系の交流信号に対して誤差による差分を補正する。【選択図】図１</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CODE CONVERSION IN GENERAL</subject><subject>CODING</subject><subject>DECODING</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZEhw9vcLCfL3UXBxDfN0dlXwcAzz9HNXcAv1cw7x9PdT8HdTcPYPCnIF8oDCji5Anl-Ya1CIa5COgqOfi4Kva4iHvwseZTwMrGmJOcWpvFCam0HJzTXE2UM3tSA_PrW4IDE5NS-1JN4rwMjA0NTA2NLQwNTRmChFAL9TM4c</recordid><startdate>20150226</startdate><enddate>20150226</enddate><creator>SATO MITSUTERU</creator><creator>TERUNUMA MUTSUHIRO</creator><scope>EVB</scope></search><sort><creationdate>20150226</creationdate><title>CONTROL DEVICE HAVING FUNCTION OF CORRECTING AD CONVERTER, AND METHOD OF CORRECTING AD CONVERTER</title><author>SATO MITSUTERU ; TERUNUMA MUTSUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2015039105A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2015</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CODE CONVERSION IN GENERAL</topic><topic>CODING</topic><topic>DECODING</topic><topic>ELECTRICITY</topic><toplevel>online_resources</toplevel><creatorcontrib>SATO MITSUTERU</creatorcontrib><creatorcontrib>TERUNUMA MUTSUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SATO MITSUTERU</au><au>TERUNUMA MUTSUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONTROL DEVICE HAVING FUNCTION OF CORRECTING AD CONVERTER, AND METHOD OF CORRECTING AD CONVERTER</title><date>2015-02-26</date><risdate>2015</risdate><abstract>PROBLEM TO BE SOLVED: To provide a control device using an AD converter required to meet high accuracy which enables high performance control by reducing an error in the AD converter when an AC signal or a DC signal including a pulsating component is input as a controlled object.SOLUTION: A reference AC signal is generated beforehand in a digital computing element, at least three points of the AC signal, consisting of a zero point (or intermediate value), a maximum value and a minimum value, are DA-converted, analog values thus converted are AD-converted before input into the digital computing element, a difference from the reference AC signal generated beforehand is detected to determine a range of error, and an AC signal considering the difference from the reference AC signal is reproduced to correct a control system AC signal for an error-based difference.
【課題】高精度が要求されるＡＤ変換器を用いた制御装置にあって、制御対象となる交流信号、または脈動成分を含んだ直流信号が入力される場合に、ＡＤ変換器による誤差を少なくすることで、高性能の制御を可能にする制御装置を提供する。【解決手段】デジタル演算器で基準となる交流信号を予め生成して、この交流信号の少なくともゼロ点（もしくは中間値）、最大値、最小値の３点をＤＡ変換し、この変換したアナログ値をＡＤ変換してデジタル演算器に入力させ、予め生成した基準となる交流信号との差分を検出して誤差の範囲を確定し、この基準となる交流信号との差分を考慮した交流信号を再現することにより、制御系の交流信号に対して誤差による差分を補正する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRICITY |
| title | CONTROL DEVICE HAVING FUNCTION OF CORRECTING AD CONVERTER, AND METHOD OF CORRECTING AD CONVERTER |
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