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:
Oct. 02, 2012
Filed:
Jan. 04, 2010
Ali Davoudi, Champaign, IL (US);
Mark David Hagen, Rochester, MN (US);
Ali Davoudi, Champaign, IL (US);
Mark David Hagen, Rochester, MN (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An apparatus for and method of automatically tuning a voltage regulation control loop for a digitally controlled switch mode power supply is provided. The method includes determining a frequency response of the power stage and calculating an open loop transfer function from the frequency response. A correlated metric is defined based at least in part on the open loop transfer function, wherein the correlated metric is correlated to an expected disturbance in regulated output voltage from the digitally controlled switch mode power supply due to a change in load. New values for the open loop transfer function are calculated for a range of controller compensation parameters to minimize the correlated metric. These values are then applied to the digital controller for use in controlling the power supply.