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.

Date of Patent:
Sep. 15, 2026

Filed:

Sep. 27, 2024
Applicant:

Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;

Inventors:

Eric J. King, Austin, TX (US);

John L. Melanson, Austin, TX (US);

Assignee:

Cirrus Logic Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/56 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H03K 17/56 (2013.01); H04R 3/00 (2013.01);
Abstract

This application relates to methods and apparatus for controlling a switching driver to drive a load with a drive signal based on an input signal. A controller is configured to control modulation of at least one driver output node between selected switching voltages of a set of at least four different switching voltages to generate the drive signal. The output node is modulated according to a switching pattern and the controller is configured such that, for a given level of drive signal, the controller can selectively operate with a plurality of different switching patterns and selects an appropriate switching pattern to control at least one parameter of the switching driver other than the drive voltage.


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