CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF
In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being...
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| creator | CHEN WEI LIU GUOJIA |
| description | In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being configured to generate a first mirror current; (ii) the first current mirror circuit and the main power transistor being on such that an output sampling current flows through the first current mirror circuit and the main power transistor when the PWM control signal is active; and (iii) a second current mirror circuit configured to generate an output feedback current that is in a predetermined direct proportion with the output sampling current, and is generated in accordance with the first mirror current. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2016070290A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2016070290A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2016070290A13</originalsourceid><addsrcrecordid>eNrjZEh1Dg0KcvULUXBzdXVxcnT2VvB1DfHwd9FRwJBw9gxyDvUM0VFwCfIM8_RzhwkoOPq5KASHe4Y4e4BEA_zDXYMUgkMDAnwiFUI8XINc_d14GFjTEnOKU3mhNDeDspsrUL1uakF-fGpxQWJyal5qSXxosJGBoZmBuYGRpYGjoTFxqgA_KzWi</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF</title><source>esp@cenet</source><creator>CHEN WEI ; LIU GUOJIA</creator><creatorcontrib>CHEN WEI ; LIU GUOJIA</creatorcontrib><description>In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being configured to generate a first mirror current; (ii) the first current mirror circuit and the main power transistor being on such that an output sampling current flows through the first current mirror circuit and the main power transistor when the PWM control signal is active; and (iii) a second current mirror circuit configured to generate an output feedback current that is in a predetermined direct proportion with the output sampling current, and is generated in accordance with the first mirror current.</description><language>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 ; CONTROL OR REGULATION THEREOF ; CONTROLLING ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; PHYSICS ; REGULATING ; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</subject><creationdate>2016</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=20160310&DB=EPODOC&CC=US&NR=2016070290A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160310&DB=EPODOC&CC=US&NR=2016070290A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHEN WEI</creatorcontrib><creatorcontrib>LIU GUOJIA</creatorcontrib><title>CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF</title><description>In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being configured to generate a first mirror current; (ii) the first current mirror circuit and the main power transistor being on such that an output sampling current flows through the first current mirror circuit and the main power transistor when the PWM control signal is active; and (iii) a second current mirror circuit configured to generate an output feedback current that is in a predetermined direct proportion with the output sampling current, and is generated in accordance with the first mirror current.</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>CONTROL OR REGULATION THEREOF</subject><subject>CONTROLLING</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>PHYSICS</subject><subject>REGULATING</subject><subject>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZEh1Dg0KcvULUXBzdXVxcnT2VvB1DfHwd9FRwJBw9gxyDvUM0VFwCfIM8_RzhwkoOPq5KASHe4Y4e4BEA_zDXYMUgkMDAnwiFUI8XINc_d14GFjTEnOKU3mhNDeDspsrUL1uakF-fGpxQWJyal5qSXxosJGBoZmBuYGRpYGjoTFxqgA_KzWi</recordid><startdate>20160310</startdate><enddate>20160310</enddate><creator>CHEN WEI</creator><creator>LIU GUOJIA</creator><scope>EVB</scope></search><sort><creationdate>20160310</creationdate><title>CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF</title><author>CHEN WEI ; LIU GUOJIA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2016070290A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2016</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>CONTROL OR REGULATION THEREOF</topic><topic>CONTROLLING</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>PHYSICS</topic><topic>REGULATING</topic><topic>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</topic><toplevel>online_resources</toplevel><creatorcontrib>CHEN WEI</creatorcontrib><creatorcontrib>LIU GUOJIA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHEN WEI</au><au>LIU GUOJIA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF</title><date>2016-03-10</date><risdate>2016</risdate><abstract>In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being configured to generate a first mirror current; (ii) the first current mirror circuit and the main power transistor being on such that an output sampling current flows through the first current mirror circuit and the main power transistor when the PWM control signal is active; and (iii) a second current mirror circuit configured to generate an output feedback current that is in a predetermined direct proportion with the output sampling current, and is generated in accordance with the first mirror current.</abstract><oa>free_for_read</oa></addata></record> |
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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 CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES |
| title | CURRENT FEEDBACK METHOD, CURRENT FEEDBACK CIRCUIT, DRIVING CIRCUIT AND SWITCHING POWER SUPPLY THEREOF |
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