ABNORMALITY DETECTION CIRCUIT
To provide an abnormality detection circuit capable of detecting the abnormality of a protection element.SOLUTION: An abnormality detection circuit is equipped with a first switching element 31, a second switching element 42, a detecting portion 55 that detects the voltage of a capacitor 44, a prote...
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| creator | TAKUSHIMA KO INAGAKI MITSUTOMO IGAWA TAKAO |
| description | To provide an abnormality detection circuit capable of detecting the abnormality of a protection element.SOLUTION: An abnormality detection circuit is equipped with a first switching element 31, a second switching element 42, a detecting portion 55 that detects the voltage of a capacitor 44, a protection element 32 that has a first terminal 321 connected to a power supply terminal 21 of a load 2 and a second terminal 322 connected to the capacitor 44, and prohibits a current flow from the second terminal 322 to the first terminal 321, excluding in a case where the voltage of the second terminal 322 is higher than that of the first terminal 321 and voltage between the terminals exceeds a predetermined pressure, and a control portion 6. The control portion 6 brings the second switching element 42 into a non-energization state after charging the capacitor 44, executes switching processing for bringing the first switching element 31 into the energization state and then switching it to a non-energization state, and determining whether or not a protection element 32 is abnormal on the basis of a detection value of the detecting portion 55 after the switching processing is completed.SELECTED DRAWING: Figure 1
【課題】保護素子の異常を検出することができる異常検出回路を提供する。【解決手段】本発明は、第１スイッチング素子３１と、第２スイッチング素子４２と、コンデンサ４４の電圧を検出する検出部５５と、負荷２の電源端子２１に接続された第１端子３２１、及びコンデンサ４４に接続された第２端子３２２を有し、第２端子３２２の電圧が第１端子３２１の電圧より高く且つ端子間電圧が所定圧を超えた場合を除いて、第２端子３２２から第１端子３２１への電流の流れを禁止する保護素子３２と、制御部６と、を備え、制御部６は、コンデンサ４４が充電された後に第２スイッチング素子４２を非通電状態にし、続いて第１スイッチング素子３１を通電状態にしてから非通電状態に切り替える切替処理を実行し、切替処理完了後の検出部５５の検出値に基づいて保護素子３２が異常であるか否かを判定する。【選択図】図１ |
| format | Patent |
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【課題】保護素子の異常を検出することができる異常検出回路を提供する。【解決手段】本発明は、第１スイッチング素子３１と、第２スイッチング素子４２と、コンデンサ４４の電圧を検出する検出部５５と、負荷２の電源端子２１に接続された第１端子３２１、及びコンデンサ４４に接続された第２端子３２２を有し、第２端子３２２の電圧が第１端子３２１の電圧より高く且つ端子間電圧が所定圧を超えた場合を除いて、第２端子３２２から第１端子３２１への電流の流れを禁止する保護素子３２と、制御部６と、を備え、制御部６は、コンデンサ４４が充電された後に第２スイッチング素子４２を非通電状態にし、続いて第１スイッチング素子３１を通電状態にしてから非通電状態に切り替える切替処理を実行し、切替処理完了後の検出部５５の検出値に基づいて保護素子３２が異常であるか否かを判定する。【選択図】図１</description><language>eng ; jpn</language><subject>BASIC ELECTRIC ELEMENTS ; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; GENERATION ; SEMICONDUCTOR DEVICES</subject><creationdate>2021</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=20210520&DB=EPODOC&CC=JP&NR=2021077682A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210520&DB=EPODOC&CC=JP&NR=2021077682A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKUSHIMA KO</creatorcontrib><creatorcontrib>INAGAKI MITSUTOMO</creatorcontrib><creatorcontrib>IGAWA TAKAO</creatorcontrib><title>ABNORMALITY DETECTION CIRCUIT</title><description>To provide an abnormality detection circuit capable of detecting the abnormality of a protection element.SOLUTION: An abnormality detection circuit is equipped with a first switching element 31, a second switching element 42, a detecting portion 55 that detects the voltage of a capacitor 44, a protection element 32 that has a first terminal 321 connected to a power supply terminal 21 of a load 2 and a second terminal 322 connected to the capacitor 44, and prohibits a current flow from the second terminal 322 to the first terminal 321, excluding in a case where the voltage of the second terminal 322 is higher than that of the first terminal 321 and voltage between the terminals exceeds a predetermined pressure, and a control portion 6. The control portion 6 brings the second switching element 42 into a non-energization state after charging the capacitor 44, executes switching processing for bringing the first switching element 31 into the energization state and then switching it to a non-energization state, and determining whether or not a protection element 32 is abnormal on the basis of a detection value of the detecting portion 55 after the switching processing is completed.SELECTED DRAWING: Figure 1
【課題】保護素子の異常を検出することができる異常検出回路を提供する。【解決手段】本発明は、第１スイッチング素子３１と、第２スイッチング素子４２と、コンデンサ４４の電圧を検出する検出部５５と、負荷２の電源端子２１に接続された第１端子３２１、及びコンデンサ４４に接続された第２端子３２２を有し、第２端子３２２の電圧が第１端子３２１の電圧より高く且つ端子間電圧が所定圧を超えた場合を除いて、第２端子３２２から第１端子３２１への電流の流れを禁止する保護素子３２と、制御部６と、を備え、制御部６は、コンデンサ４４が充電された後に第２スイッチング素子４２を非通電状態にし、続いて第１スイッチング素子３１を通電状態にしてから非通電状態に切り替える切替処理を実行し、切替処理完了後の検出部５５の検出値に基づいて保護素子３２が異常であるか否かを判定する。【選択図】図１</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</subject><subject>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>SEMICONDUCTOR DEVICES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB1dPLzD_J19PEMiVRwcQ1xdQ7x9PdTcPYMcg71DOFhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRoYG5uZmFkaOxkQpAgDkGiGy</recordid><startdate>20210520</startdate><enddate>20210520</enddate><creator>TAKUSHIMA KO</creator><creator>INAGAKI MITSUTOMO</creator><creator>IGAWA TAKAO</creator><scope>EVB</scope></search><sort><creationdate>20210520</creationdate><title>ABNORMALITY DETECTION CIRCUIT</title><author>TAKUSHIMA KO ; INAGAKI MITSUTOMO ; IGAWA TAKAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021077682A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</topic><topic>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>SEMICONDUCTOR DEVICES</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKUSHIMA KO</creatorcontrib><creatorcontrib>INAGAKI MITSUTOMO</creatorcontrib><creatorcontrib>IGAWA TAKAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKUSHIMA KO</au><au>INAGAKI MITSUTOMO</au><au>IGAWA TAKAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ABNORMALITY DETECTION CIRCUIT</title><date>2021-05-20</date><risdate>2021</risdate><abstract>To provide an abnormality detection circuit capable of detecting the abnormality of a protection element.SOLUTION: An abnormality detection circuit is equipped with a first switching element 31, a second switching element 42, a detecting portion 55 that detects the voltage of a capacitor 44, a protection element 32 that has a first terminal 321 connected to a power supply terminal 21 of a load 2 and a second terminal 322 connected to the capacitor 44, and prohibits a current flow from the second terminal 322 to the first terminal 321, excluding in a case where the voltage of the second terminal 322 is higher than that of the first terminal 321 and voltage between the terminals exceeds a predetermined pressure, and a control portion 6. The control portion 6 brings the second switching element 42 into a non-energization state after charging the capacitor 44, executes switching processing for bringing the first switching element 31 into the energization state and then switching it to a non-energization state, and determining whether or not a protection element 32 is abnormal on the basis of a detection value of the detecting portion 55 after the switching processing is completed.SELECTED DRAWING: Figure 1
【課題】保護素子の異常を検出することができる異常検出回路を提供する。【解決手段】本発明は、第１スイッチング素子３１と、第２スイッチング素子４２と、コンデンサ４４の電圧を検出する検出部５５と、負荷２の電源端子２１に接続された第１端子３２１、及びコンデンサ４４に接続された第２端子３２２を有し、第２端子３２２の電圧が第１端子３２１の電圧より高く且つ端子間電圧が所定圧を超えた場合を除いて、第２端子３２２から第１端子３２１への電流の流れを禁止する保護素子３２と、制御部６と、を備え、制御部６は、コンデンサ４４が充電された後に第２スイッチング素子４２を非通電状態にし、続いて第１スイッチング素子３１を通電状態にしてから非通電状態に切り替える切替処理を実行し、切替処理完了後の検出部５５の検出値に基づいて保護素子３２が異常であるか否かを判定する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION SEMICONDUCTOR DEVICES |
| title | ABNORMALITY DETECTION CIRCUIT |
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