Bridge-buck converter with self-driven synchronous rectifiers

Simple item page
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.inventorLee, Fred C.en
dc.contributor.inventorXu, Ming Gangen
dc.contributor.inventorZhou, Jinghaien
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:54:29Zen
dc.date.available2016-08-24T17:54:29Zen
dc.date.filed2003-06-05en
dc.date.issued2005-02-22en
dc.description.abstractA non-isolated bridge-buck DC—DC converter has self-driven synchronous rectifiers Q5 Q6 in the buck circuits 28 30. Gate electrodes of the synchronous rectifiers Q5 Q6 are connected to midpoints 24A 24B of the bridge circuit. The voltage at the midpoints provides the necessary voltage waveform for switching the synchronous rectifiers Q5 Q6. In another aspect of the invention, voltage shift circuits 34 are provided between the midpoints and the gates of the synchronous rectifiers. The voltage shift circuits are necessary in some embodiments to make sure that the synchronous rectifiers are turned completely OFF when necessary. The present invention provides a more power efficient and less expensive technique for controlling the synchronous rectifiers compared to conventional external driver circuitry.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber10454779en
dc.identifier.patentnumber6859372en
dc.identifier.urihttp://hdl.handle.net/10919/72504en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/72/593/068/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02M3/33569en
dc.subject.uspc363/17en
dc.subject.uspcother363/127en
dc.subject.uspcother363/132en
dc.titleBridge-buck converter with self-driven synchronous rectifiersen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
6859372.pdf
Size:
535.3 KB
Format:
Adobe Portable Document Format
Download

Collections

Virginia Tech Patents