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:
Aug. 25, 2009
Filed:
Jul. 13, 2007
Applicants:
Christian Hausperger, Bonbruck, DE;
Edgar Kindler, Landshut, DE;
Bernhard Röllgen, Munich, DE;
Inventors:
Assignees:
Lisa Dräxlmaier GmbH, Vilsbiburg, DE;
EPCOS AG, Münech, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for measuring a current flowing in an electrical conductor that has a magnetic circuit coupled to an electrical conductor. The magnetic circuit has an air gap and a magnetic field sensitive component disposed in the air gap to measure a magnetic field generated by the electrical conductor. At least one control core with a control winding is included to control an effective length of the air gap when the control winding is energized. The device also has a compensation coil to magnetize the magnetic circuit.