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:
Jun. 14, 2016
Filed:
Sep. 21, 2012
Applicant:
Aker Subsea Limited, Maindenhead, Berkshire, GB;
Inventor:
Philip Michael Bagley, Aberdeenshire, GB;
Assignee:
AKER SUBSEA LIMITED, Berkshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 23/02 (2006.01); G01R 31/40 (2014.01);
U.S. Cl.
CPC ...
G01R 23/02 (2013.01); G01R 31/40 (2013.01);
Abstract
A method of monitoring an output signal of a switching-mode power supply for the presence and magnitude of the switching frequency comprises sampling the output signal at a sampling frequency above the minimum Nyquist limit to provide a succession of samples; cross-correlating a reference signal and the samples to provide cross-correlation values; and monitoring the cross-correlation values to ascertain the magnitude of a component of the output signal at or near the frequency of the reference signal.