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:
Jul. 12, 2011
Filed:
Feb. 22, 2008
Gerard Lepine, Peillonnex, FR;
Vinh Tho Vo, Meyrin, CH;
Gerard Lepine, Peillonnex, FR;
Vinh Tho Vo, Meyrin, CH;
Liaisons Electroniques-Mechaniques LEM S.A., Plan-les-Ouates, CH;
Abstract
Open-loop electrical current sensor () for measuring the electrical current flowing in a primary conductor, comprising a magnetic circuit () with an air-gap (), and a magnetic field sensing device () positioned at least partially in said air-gap. The magnetic field sensing device comprises a circuit board (), a first magnetic field detector () mounted on the circuit board, and a second magnetic field detector (). The second magnetic field detector comprises a conductive coil formed on the circuit board, the output signals of the first magnetic field detector and the second magnetic field detector being adapted for connection to a signal processing circuit () generating an output signal representative of the primary electrical current.