Large-current over-current and over-voltage protection circuit
The utility model discloses a heavy-current over-current and over-voltage protection circuit, which comprises a filter circuit connected with a power supply, the output end of the filter circuit is connected with an anti-reverse connection circuit, and the rear end of the anti-reverse connection cir...
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| creator | HUANG XUE TANG HUALIN QIU QUANYUN |
| description | The utility model discloses a heavy-current over-current and over-voltage protection circuit, which comprises a filter circuit connected with a power supply, the output end of the filter circuit is connected with an anti-reverse connection circuit, and the rear end of the anti-reverse connection circuit is connected with a post-stage circuit through an over-voltage protection circuit. According to the utility model, when the current exceeds the bearing capacity of the self-recovery fuse, the self-recovery fuse is automatically disconnected to realize large-current over-current protection; when the input voltage exceeds a set overvoltage protection threshold value, a circuit loop is blocked through switching between a conduction state and a cut-off state between the triode and the MOS tube, so that circuit overvoltage protection is realized; the reverse connection prevention of the circuit is realized through the circuit break of the MOS tube, and the MOS tube is small in internal resistance and less in heat p |
| format | Patent |
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According to the utility model, when the current exceeds the bearing capacity of the self-recovery fuse, the self-recovery fuse is automatically disconnected to realize large-current over-current protection; when the input voltage exceeds a set overvoltage protection threshold value, a circuit loop is blocked through switching between a conduction state and a cut-off state between the triode and the MOS tube, so that circuit overvoltage protection is realized; the reverse connection prevention of the circuit is realized through the circuit break of the MOS tube, and the MOS tube is small in internal resistance and less in heat p</description><language>chi ; eng</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; GENERATION</subject><creationdate>2024</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=20240405&DB=EPODOC&CC=CN&NR=220732369U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240405&DB=EPODOC&CC=CN&NR=220732369U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HUANG XUE</creatorcontrib><creatorcontrib>TANG HUALIN</creatorcontrib><creatorcontrib>QIU QUANYUN</creatorcontrib><title>Large-current over-current and over-voltage protection circuit</title><description>The utility model discloses a heavy-current over-current and over-voltage protection circuit, which comprises a filter circuit connected with a power supply, the output end of the filter circuit is connected with an anti-reverse connection circuit, and the rear end of the anti-reverse connection circuit is connected with a post-stage circuit through an over-voltage protection circuit. According to the utility model, when the current exceeds the bearing capacity of the self-recovery fuse, the self-recovery fuse is automatically disconnected to realize large-current over-current protection; when the input voltage exceeds a set overvoltage protection threshold value, a circuit loop is blocked through switching between a conduction state and a cut-off state between the triode and the MOS tube, so that circuit overvoltage protection is realized; the reverse connection prevention of the circuit is realized through the circuit break of the MOS tube, and the MOS tube is small in internal resistance and less in heat p</description><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDzSSxKT9VNLi0qSs0rUcgvSy2CcxLzUiACZfk5JYnpqQoFRfklqcklmfl5CsmZRcmlmSU8DKxpiTnFqbxQmptByc01xNlDN7UgPz61uCAxOTUvtSTe2c_IyMDc2MjYzDI01JgoRQD62THs</recordid><startdate>20240405</startdate><enddate>20240405</enddate><creator>HUANG XUE</creator><creator>TANG HUALIN</creator><creator>QIU QUANYUN</creator><scope>EVB</scope></search><sort><creationdate>20240405</creationdate><title>Large-current over-current and over-voltage protection circuit</title><author>HUANG XUE ; TANG HUALIN ; QIU QUANYUN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN220732369UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>HUANG XUE</creatorcontrib><creatorcontrib>TANG HUALIN</creatorcontrib><creatorcontrib>QIU QUANYUN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HUANG XUE</au><au>TANG HUALIN</au><au>QIU QUANYUN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Large-current over-current and over-voltage protection circuit</title><date>2024-04-05</date><risdate>2024</risdate><abstract>The utility model discloses a heavy-current over-current and over-voltage protection circuit, which comprises a filter circuit connected with a power supply, the output end of the filter circuit is connected with an anti-reverse connection circuit, and the rear end of the anti-reverse connection circuit is connected with a post-stage circuit through an over-voltage protection circuit. According to the utility model, when the current exceeds the bearing capacity of the self-recovery fuse, the self-recovery fuse is automatically disconnected to realize large-current over-current protection; when the input voltage exceeds a set overvoltage protection threshold value, a circuit loop is blocked through switching between a conduction state and a cut-off state between the triode and the MOS tube, so that circuit overvoltage protection is realized; the reverse connection prevention of the circuit is realized through the circuit break of the MOS tube, and the MOS tube is small in internal resistance and less in heat p</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION |
| title | Large-current over-current and over-voltage protection circuit |
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