HYBRID FLYBACK CIRCUIT AND CONTROL METHOD
A hybrid flyback circuit is provided and includes an upper switch, a lower switch, a transformer, a resonant circuit, a current sampling circuit and a control unit. The control unit includes an output voltage feedback unit, a peak current comparison unit controlling the upper switch to turn off when...
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| creator | Song, Haibin Jiang, Fengkai Xu, Daofei Xu, Hairui Zhang, Jinfa |
| description | A hybrid flyback circuit is provided and includes an upper switch, a lower switch, a transformer, a resonant circuit, a current sampling circuit and a control unit. The control unit includes an output voltage feedback unit, a peak current comparison unit controlling the upper switch to turn off when a sampling voltage corresponding to the current sampling signal is equal to the first voltage feedback signal, a first dead time delay unit controlling the lower switch to turn on after a first dead time starting from the turn-off time of the upper switch, a negative peak current feedback unit for generating a second voltage feedback signal, a conduction control unit controlling the lower switch to turn off, and a second dead time delay unit controlling the upper switch to turn on after a second dead time starting from the turn-off time of the lower switch. |
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The control unit includes an output voltage feedback unit, a peak current comparison unit controlling the upper switch to turn off when a sampling voltage corresponding to the current sampling signal is equal to the first voltage feedback signal, a first dead time delay unit controlling the lower switch to turn on after a first dead time starting from the turn-off time of the upper switch, a negative peak current feedback unit for generating a second voltage feedback signal, a conduction control unit controlling the lower switch to turn off, and a second dead time delay unit controlling the upper switch to turn on after a second dead time starting from the turn-off time of the lower switch.</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 ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</subject><creationdate>2023</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=20230316&DB=EPODOC&CC=US&NR=2023080559A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230316&DB=EPODOC&CC=US&NR=2023080559A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Song, Haibin</creatorcontrib><creatorcontrib>Jiang, Fengkai</creatorcontrib><creatorcontrib>Xu, Daofei</creatorcontrib><creatorcontrib>Xu, Hairui</creatorcontrib><creatorcontrib>Zhang, Jinfa</creatorcontrib><title>HYBRID FLYBACK CIRCUIT AND CONTROL METHOD</title><description>A hybrid flyback circuit is provided and includes an upper switch, a lower switch, a transformer, a resonant circuit, a current sampling circuit and a control unit. 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The control unit includes an output voltage feedback unit, a peak current comparison unit controlling the upper switch to turn off when a sampling voltage corresponding to the current sampling signal is equal to the first voltage feedback signal, a first dead time delay unit controlling the lower switch to turn on after a first dead time starting from the turn-off time of the upper switch, a negative peak current feedback unit for generating a second voltage feedback signal, a conduction control unit controlling the lower switch to turn off, and a second dead time delay unit controlling the upper switch to turn on after a second dead time starting from the turn-off time of the lower switch.</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 CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | HYBRID FLYBACK CIRCUIT AND CONTROL METHOD |
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