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. 08, 2015
Filed:
Jun. 10, 2011
Jeffrey Michael Fries, Melbourne, FL (US);
Jeffery Armstrong, Palm Bay, FL (US);
Robert N. Bettis, West Melbourne, FL (US);
Bradley Dale Brown, Winnipeg, CA;
Shawn T. Clark, Melbourne, FL (US);
Gregory K. Hann, Odessa, MO (US);
Mark Kraeling, Melbourne, FL (US);
Steve R. Murphy, West Melbourne, FL (US);
Daniel G. Penny, Iii, Melbourne, FL (US);
Eric Vorndran, Melbourne, FL (US);
Jeffrey Michael Fries, Melbourne, FL (US);
Jeffery Armstrong, Palm Bay, FL (US);
Robert N. Bettis, West Melbourne, FL (US);
Bradley Dale Brown, Winnipeg, CA;
Shawn T. Clark, Melbourne, FL (US);
Gregory K. Hann, Odessa, MO (US);
Mark Kraeling, Melbourne, FL (US);
Steve R. Murphy, West Melbourne, FL (US);
Daniel G. Penny, III, Melbourne, FL (US);
Eric Vorndran, Melbourne, FL (US);
General Electric Company, Schenectady, NY (US);
Abstract
There is provided a voltage or current sensing device. An exemplary voltage or current sensing device includes a drive circuitry configured to deliver a drive current to a magnetic core operably coupled with a conductor, for driving the core to cyclical magnetic saturation. The device also includes sense circuitry configured to receive a voltage signal corresponding to an application current in the conductor. The device also includes signal processing circuitry configured to sample the voltage signal, wherein a first sample is in phase with the drive current and a second sample is out of phase with the drive current. The device also includes a feedback loop configured to deliver a compensation current to the magnetic core, wherein the compensation current is configured to balance the magnetic core and wherein the compensation current is based at least in part on the first sample in phase with the drive current.