Linear charger and method for controlling charging current
The invention provides an NMOSFET-based linear charger. A source electrode of a sensing NMOSFET is coupled with a source electrode of a charging NMOSFET, or the source electrode of the charging NMOSFET is coupled with the source electrode of the sensing NMOSFET, so that the sensing NMOSFET and the c...
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| creator | GONG NENGHUI ZHU GUANREN |
| description | The invention provides an NMOSFET-based linear charger. A source electrode of a sensing NMOSFET is coupled with a source electrode of a charging NMOSFET, or the source electrode of the charging NMOSFET is coupled with the source electrode of the sensing NMOSFET, so that the sensing NMOSFET and the charging NMOSFET have the same switch source electrode differential voltage, therefore, drain sourceelectrode current generated by the sensing NMOSFET responds to drain source electrode current generated by the charging NMOSFET, then a current sensing signal is generated by the drain source electrode current generated by the sensing NMOSFET and is used for controlling the switch electrode voltage of the charging NMOSFET. As NMOSFET is taken as a charging MOSFET, the area of the chip of the charging MOSFET can be greatly reduced. |
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A source electrode of a sensing NMOSFET is coupled with a source electrode of a charging NMOSFET, or the source electrode of the charging NMOSFET is coupled with the source electrode of the sensing NMOSFET, so that the sensing NMOSFET and the charging NMOSFET have the same switch source electrode differential voltage, therefore, drain sourceelectrode current generated by the sensing NMOSFET responds to drain source electrode current generated by the charging NMOSFET, then a current sensing signal is generated by the drain source electrode current generated by the sensing NMOSFET and is used for controlling the switch electrode voltage of the charging NMOSFET. As NMOSFET is taken as a charging MOSFET, the area of the chip of the charging MOSFET can be greatly reduced.</description><language>chi ; eng</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; SYSTEMS FOR STORING ELECTRIC ENERGY</subject><creationdate>2012</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=20120822&DB=EPODOC&CC=CN&NR=101431295B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120822&DB=EPODOC&CC=CN&NR=101431295B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GONG NENGHUI</creatorcontrib><creatorcontrib>ZHU GUANREN</creatorcontrib><title>Linear charger and method for controlling charging current</title><description>The invention provides an NMOSFET-based linear charger. A source electrode of a sensing NMOSFET is coupled with a source electrode of a charging NMOSFET, or the source electrode of the charging NMOSFET is coupled with the source electrode of the sensing NMOSFET, so that the sensing NMOSFET and the charging NMOSFET have the same switch source electrode differential voltage, therefore, drain sourceelectrode current generated by the sensing NMOSFET responds to drain source electrode current generated by the charging NMOSFET, then a current sensing signal is generated by the drain source electrode current generated by the sensing NMOSFET and is used for controlling the switch electrode voltage of the charging NMOSFET. As NMOSFET is taken as a charging MOSFET, the area of the chip of the charging MOSFET can be greatly reduced.</description><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</subject><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDyycxLTSxSSM5ILEpPLVJIzEtRyE0tychPUUjLBwrn55UU5efkZOalQ5SAGaVFRal5JTwMrGmJOcWpvFCam0HJzTXE2UM3tSA_PrW4IDE5NS-1JN7Zz9DA0MTY0MjS1MnJmChFANXXL6A</recordid><startdate>20120822</startdate><enddate>20120822</enddate><creator>GONG NENGHUI</creator><creator>ZHU GUANREN</creator><scope>EVB</scope></search><sort><creationdate>20120822</creationdate><title>Linear charger and method for controlling charging current</title><author>GONG NENGHUI ; ZHU GUANREN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN101431295BB3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2012</creationdate><topic>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</topic><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>GONG NENGHUI</creatorcontrib><creatorcontrib>ZHU GUANREN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GONG NENGHUI</au><au>ZHU GUANREN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Linear charger and method for controlling charging current</title><date>2012-08-22</date><risdate>2012</risdate><abstract>The invention provides an NMOSFET-based linear charger. A source electrode of a sensing NMOSFET is coupled with a source electrode of a charging NMOSFET, or the source electrode of the charging NMOSFET is coupled with the source electrode of the sensing NMOSFET, so that the sensing NMOSFET and the charging NMOSFET have the same switch source electrode differential voltage, therefore, drain sourceelectrode current generated by the sensing NMOSFET responds to drain source electrode current generated by the charging NMOSFET, then a current sensing signal is generated by the drain source electrode current generated by the sensing NMOSFET and is used for controlling the switch electrode voltage of the charging NMOSFET. As NMOSFET is taken as a charging MOSFET, the area of the chip of the charging MOSFET can be greatly reduced.</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Linear charger and method for controlling charging current |
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