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:
Mar. 28, 2023
Filed:
Apr. 28, 2020
Infineon Technologies Austria Ag, Villach, AT;
Martin Feldtkeller, Munich, DE;
Infineon Technologies Austria AG, Villach, AT;
Abstract
A method for operating a switch in a power converter, a drive circuit for operating a switch in a power converter, and a power converter are disclosed. The method includes: driving an electronic switch coupled to an inductor in a power converter based on a feedback signal (S) and a crossing detection voltage, wherein the feedback signal is dependent on an output parameter of the power converter and the crossing detection voltage is dependent on a voltage across an auxiliary winding coupled to the inductor; clamping the crossing detection voltage; monitoring an auxiliary current (I) associated with clamping the crossing detection voltage; and detecting an overvoltage when the monitored current reaches a predefined threshold.