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:
Dec. 03, 2013
Filed:
Jul. 01, 2010
Robert T. Carroll, Andover, MA (US);
Venkat Sreenivas, Winchester, MA (US);
David Williams, Andover, MA (US);
Robert T. Carroll, Andover, MA (US);
Venkat Sreenivas, Winchester, MA (US);
David Williams, Andover, MA (US);
International Rectifier Corporation, El Segundo, CA (US);
Abstract
According to example configurations herein, while operating a power supply in a discontinuous power supply mode, a controller initiates activation of a first switch of the power supply to increase a magnitude of current flowing through an inductor. The flow of current through the inductor produces an output voltage for powering a load. The controller estimates a time duration in which to activate a second switch of the power supply to reduce the current flowing through the inductor. The controller uses the estimated time duration as a parameter for controlling the second switch in the power supply. For example, upon or after deactivating the first switch, the controller initiates activation of the second switch for the estimated time duration. Deactivation of the second switch based on the estimated time duration reduces or eliminates a need to employ complex circuitry to physically measure a magnitude of current through the inductor.