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. 29, 2026

Filed:

Jan. 18, 2024
Applicant:

Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;

Inventors:

Hasnain Akram, Austin, TX (US);

Graeme G. Mackay, Austin, TX (US);

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

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2007.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 1/0032 (2021.05); H02M 1/0025 (2021.05); H02M 1/0095 (2021.05); H02M 3/1582 (2013.01);
Abstract

A system may include a control circuit and a multi-level power converter comprising a plurality of switches and a power inductor electrically coupled to the plurality of switches, wherein the power inductor is coupled to a switching node of the multi-level power converter, wherein the multi-level power converter is capable of applying three or more switching voltages to the switching node. The control circuit may generate control signals that define a sequence of switching of the plurality of switches of the power converter, the control circuit configured to, during a switching cycle of the converter in which the power inductor is magnetized and demagnetized, control switching of the plurality of switches among at least three switch configurations during magnetization and demagnetization of the power inductor such that a voltage on the switching node experiences a different respective magnitude of voltage in each of the at least three switch configurations.


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