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.

Date of Patent:
Mar. 03, 2009

Filed:

Oct. 16, 2006
Applicants:

Kang LI, Windsor, CA;

Dwayne Scott Bontrager, Canton, MI (US);

Inventors:

Kang Li, Windsor, CA;

Dwayne Scott Bontrager, Canton, MI (US);

Assignee:

Yazaki North America, Inc., Canton, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/72 (2006.01);
U.S. Cl.
CPC ...
Abstract

A current measurement system includes a magnetic core having an inside area through which a conductor carrying current to be measured extends. A measurement winding is wound on the magnetic core. A voltage source couples to the measurement winding to generate current through the measurement winding. A gap of low permeability material is disposed in the magnetic core. A sensing device is positioned in the gap, wherein the sensing device generates a control signal having one of a first state and a second state based on a strength and a direction of a magnetic field in the gap.


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