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:
Feb. 07, 2023
Board of Regents, the University of Texas System, Austin, TX (US);
Alex J. Hanson, Austin, TX (US);
Duy T. Nguyen, Austin, TX (US);
Board of Regents, The University of Texas System, Austin, TX (US);
Abstract
A switch-mode active electromagnetic interference (EMI) cancellation circuit comprising a set of low-voltage switching elements and a low-voltage inductor or capacitor located at an input to, or at an output from, a set of high-voltage switching elements employed for the power conversion, wherein a controller is operatively coupled to the second set of switching elements to control switching operations of the second set of switching elements at to apply an opposing matching alternating voltage or current into the inductor or capacitor to cancel that high-frequency ripples flowing through the inductor or capacitor generated from the switching of the set of switching elements of the power converter.