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:
Sep. 30, 2025
Filed:
Sep. 22, 2023
Applicant:
Infineon Technologies Austria Ag, Villach, AT;
Inventor:
Andrey Malinin, Fort Collins, CO (US);
Assignee:
Infineon Technologies Austria AG, Villach, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/00 (2006.01); H02M 1/00 (2006.01); H02M 1/04 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 3/01 (2021.05); H02M 1/0058 (2021.05); H02M 1/047 (2013.01); H02M 3/33507 (2013.01);
Abstract
An LLC (inductor-inductor-capacitor) converter, including: a primary current sensing circuit operable to sense a primary current of the LLC converter; and a protection circuit coupled between the primary current sensing circuit and power switches of the LLC converter, and operable to increase a switching frequency of the LLC converter when an amplitude of the primary current falls below a predefined low current reference value after a predefined blanking time after a phase transition of the LLC converter.