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:
Nov. 03, 2015
Filed:
Mar. 31, 2010
Michael A. Kost, Cedar Park, TX (US);
John L. Melanson, Austin, TX (US);
Rahul Singh, Austin, TX (US);
Mohit Sood, Austin, TX (US);
Zhaohui He, Austin, TX (US);
Michael A. Kost, Cedar Park, TX (US);
John L. Melanson, Austin, TX (US);
Rahul Singh, Austin, TX (US);
Mohit Sood, Austin, TX (US);
Zhaohui He, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A power control system includes a switching power converter and a controller. The controller is configured to detect an over-current condition of an inductor current in the switching power converter using at least one non-inductor-current signal. In at least one embodiment, the switching power converter does not have a resistor or resistor network to sense the inductor current. In at least one embodiment, the controller indirectly determines a state of the inductor current using at least one non-inductor-current signal. Potentially damaging inductor current values that are, for example, greater than a normal maximum value or at a value that causes a discontinuous conduction mode system to operate in continuous conduction mode represent exemplary inductor over-current conditions addressed by one embodiment of the power control system.