The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Feb. 20, 2004
Jia Wei, Blacksburg, VA (US);
Ming Xu, Blacksburg, VA (US);
Fred C. Lee, Blacksburg, VA (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
Alteration of voltage input to a voltage regulator output stage from a Vregulator stage in a two-stage voltage regulator provides optimal Vvoltage placement for a wide range of current loads to increase voltage regulator efficiency and is particularly suited to CPUs having power-saving sleep modes of operation. An optimal voltage is selected or developed in response to information concerning operational mode or current consumption of the powered device. As a perfecting feature of one embodiment of the invention in which a discrete Vvoltage is selected based on operational mode, the selected voltage is adjusted to further optimize the matching of the Vvoltage placement to the load and provides a continuous range of voltages. In a second embodiment the entire Vpositioning function is performed in response to current load information. A feed-forward arrangement is provided to avoid transient spikes as the Vvoltage placement is altered.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile