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dc.date.accessioned2016-08-24T17:54:29Z
dc.date.available2016-08-24T17:54:29Z
dc.date.issued2005-02-22
dc.identifier.urihttp://hdl.handle.net/10919/72504
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.
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherUnited States Patent and Trademark Office
dc.titleBridge-buck converter with self-driven synchronous rectifiers
dc.typePatent
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/72/593/068/0.pdf
dc.date.accessed2016-08-19
dc.type.dcmitypeText
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.
dc.contributor.inventorLee, Fred C.
dc.contributor.inventorXu, Ming Gang
dc.contributor.inventorZhou, Jinghai
dc.date.filed2003-06-05
dc.identifier.applicationnumber10454779
dc.subject.uspc363/17
dc.subject.uspcother363/127
dc.subject.uspcother363/132
dc.subject.cpcH02M3/33569
dc.type.patenttypeutility
dc.identifier.patentnumber6859372


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