Multiphase voltage regulator having coupled inductors with reduced winding resistance

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dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.inventorLee, Fred C.en
dc.contributor.inventorXu, Ming Gangen
dc.contributor.inventorDong, Yanen
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:55:01Zen
dc.date.available2016-08-24T17:55:01Zen
dc.date.filed2007-01-29en
dc.date.issued2010-10-26en
dc.description.abstractA multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. The inductors are inversely coupled. In a first embodiment, the converter includes a toroidal magnetic core with inductors extending under and over opposite sides of the toroidal magnetic core. The coupled inductors are thereby inversely coupled and have a relatively low ohmic resistance. In a second embodiment, the converter comprises a ladder-shaped magnetic core (i.e. having parallel sides, and connecting rungs). In this case, the inductors extend under the sides, and over the rungs. Each inductor is disposed over a separate rung. The ladder-shaped magnetic core is preferably disposed flat on a circuit board. Inverse coupling and low ohmic resistance are also provided in the second embodiment having the ladder structure.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber11668229en
dc.identifier.patentnumber7821375en
dc.identifier.urihttp://hdl.handle.net/10919/72653en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/75/213/078/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH01F37/00en
dc.subject.cpcH01F17/0006en
dc.subject.cpcH01F27/255en
dc.subject.cpcH02M3/1584en
dc.subject.uspc336/232en
dc.subject.uspcother336/200en
dc.titleMultiphase voltage regulator having coupled inductors with reduced winding resistanceen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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