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:
Nov. 11, 2025
Filed:
Oct. 25, 2023
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventor:
Emil Pavlov, Heidelberg, DE;
Assignee:
ALLEGRO MICROSYSTEMS, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/16 (2006.01);
U.S. Cl.
CPC ...
G01R 27/16 (2013.01);
Abstract
Apparatus and methods for measuring a shunt resistance through which an input current flows, wherein the input current has a first frequency range, include a voltage source configured to generate an AC voltage having a second frequency range that is higher than the first frequency range. An inductor, a capacitor, and the shunt resistance form an RLC network to which the voltage source is coupled. Processing circuitry coupled to receive a superimposed voltage across the shunt resistance is configured to generate a measured resistance indicative of the shunt resistance in response to the superimposed voltage.