VTechWorks staff will be away for the winter holidays starting Tuesday, December 24, 2024, through Wednesday, January 1, 2025, and will not be replying to requests during this time. Thank you for your patience, and happy holidays!
 

Two-stage voltage regulators with adjustable intermediate bus voltage, adjustable switching frequency, and adjustable number of active phases

Simple item page
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.inventorLee, Fred C.en
dc.contributor.inventorXu, Ming Gangen
dc.contributor.inventorWei, Jiaen
dc.contributor.inventorRen, Yuanchengen
dc.contributor.inventorZhou, Jinghaien
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:54:35Zen
dc.date.available2016-08-24T17:54:35Zen
dc.date.filed2004-12-22en
dc.date.issued2006-07-04en
dc.description.abstractA two-stage power converter that dynamically adjusts to output current requirements includes a first stage regulator that provides power to a second stage regulator. The first stage can be a buck converter, and the second stage can be a multiple-phase buck converter. The output voltage of the first stage (intermediate bus voltage Vbus) is varied according to the load current to optimize conversion efficiency. To provide maximum efficiency, the Vbus voltage is increased as load current increases. The Vbus voltage provided by the first stage can be varied by duty cycle or operating frequency control. In another embodiment, the switching frequency of the second stage is varied as output current changes so that output current ripple is held constant. In an embodiment employing a multiple-phase buck converter in the second stage, the number of operating phases are varied as output current changes.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber11018920en
dc.identifier.patentnumber7071660en
dc.identifier.urihttp://hdl.handle.net/10919/72533en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/60/716/070/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02M3/156en
dc.subject.cpcH02M2001/0019en
dc.subject.cpcH02M2001/0032en
dc.subject.cpcH02M2001/007en
dc.subject.cpcY02B70/16en
dc.subject.uspc323/266en
dc.subject.uspcother323/272en
dc.subject.uspcother323/282en
dc.subject.uspcother323/284en
dc.titleTwo-stage voltage regulators with adjustable intermediate bus voltage, adjustable switching frequency, and adjustable number of active phasesen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
7071660.pdf
Size:
1.78 MB
Format:
Adobe Portable Document Format
Download

Collections

Virginia Tech Patents