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. 24, 2020
Filed:
Sep. 11, 2017
Applicant:
Analog Devices Global Unlimited Company, Hamilton, BM;
Inventors:
Jonathan Ephraim David Hurwitz, Edinburgh, GB;
William Michael James Holland, Edinburgh, GB;
Seyed Amir Ali Danesh, Edinburgh, GB;
Assignee:
Analog Devices International Limited Company, Limerick, IE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01); G01R 19/00 (2006.01); G01R 19/25 (2006.01); G01R 21/133 (2006.01); G01R 35/04 (2006.01); G01R 35/02 (2006.01); G01R 1/20 (2006.01); G01R 15/14 (2006.01); G01R 21/08 (2006.01); G01R 33/36 (2006.01); G01R 21/14 (2006.01); G01R 19/32 (2006.01);
U.S. Cl.
CPC ...
G01R 15/202 (2013.01); G01R 1/203 (2013.01); G01R 15/146 (2013.01); G01R 15/207 (2013.01); G01R 19/0092 (2013.01); G01R 19/2509 (2013.01); G01R 21/08 (2013.01); G01R 21/133 (2013.01); G01R 33/3607 (2013.01); G01R 35/02 (2013.01); G01R 35/04 (2013.01); G01R 19/32 (2013.01); G01R 21/14 (2013.01);
Abstract
A measurement circuit is arranged to make several measurements, either at different times or in respect of different frequency components of currents measured by current sensors in respective phases of a multiphase supply system. The measurements are then used to correct for discrepancies in the transfer function of the sensors.