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:
Jul. 23, 2019
Filed:
Mar. 29, 2017
Applicant:
Analog Devices Global, Hamilton, BM;
Inventor:
Andreas Callanan, Murroe, IE;
Assignee:
Analog Devices Global, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 15/14 (2006.01); G01R 19/25 (2006.01);
U.S. Cl.
CPC ...
G01R 15/146 (2013.01); G01R 19/2506 (2013.01);
Abstract
Described are various current measurement techniques that can compensate for drift in shunt resistance. Determining a resistance of a shunt resistor, e.g., coupled to a battery terminal, can include introducing a known signal in sync with the chop phases of a dual system chop scheme, chopping the known signal out in the main signal path, and explicitly extracting the known signal in a parallel, additional signal deprocessing path.