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. 02, 2015
Filed:
Jul. 17, 2012
Kenneth B. Delpapa, Natick, MA (US);
Michael B. Nussbaum, Newton, MA (US);
Jay N. Teixeira, Boxborough, MA (US);
George Nichols, Dover, MA (US);
Thomas A. Froeschle, Southborough, MA (US);
Kenneth B. Delpapa, Natick, MA (US);
Michael B. Nussbaum, Newton, MA (US);
Jay N. Teixeira, Boxborough, MA (US);
George Nichols, Dover, MA (US);
Thomas A. Froeschle, Southborough, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
An electrical apparatus to sense current through a load includes a first input terminal having a first input voltage relative to a reference, a second input terminal having a second input voltage relative to the reference, a first load terminal of the load having a first load voltage relative to the reference, a second load terminal of the load having a second load voltage relative to the reference, a first current sensing element connected between the first input terminal and the first load terminal and a second current sensing element connected between the second input terminal and the second load terminal. A first sense voltage is determined by a relationship between the first input voltage and the second load voltage and a second sense voltage is determined by a relationship between the second input voltage and the first load voltage.