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.:

US 9209794 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 08, 2015

Filed:

Dec. 03, 2014
Applicant:

Fujikura Ltd., Tokyo, JP;

Inventor:

Yasushi Oikawa, Sakura, JP;

Assignee:

FUJIKURA LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H01H 47/32 (2006.01); H03K 17/14 (2006.01); G01R 33/00 (2006.01); G01R 33/04 (2006.01); H03K 17/82 (2006.01);
U.S. Cl.
CPC ...
H03K 17/14 (2013.01); G01R 33/0041 (2013.01); G01R 33/04 (2013.01); H03K 17/82 (2013.01);
Abstract

A magnetic element control device of the present invention includes an excitation signal generation unit that generates an alternating signal, an excitation signal adjustment unit that generates an alternating voltage signal from the alternating signal, and generates an excitation signal which is applied to an exciting coil on the basis of the alternating voltage signal, a detection signal comparison unit that detects a detection signal of a positive voltage or a negative voltage which is generated by an induced electromotive force when a current direction of the excitation signal switches, and a feedback signal adjustment unit that generates a feedback signal for applying a magnetic field, cancelling a stationary magnetic field which is applied to a magnetic element from voltage information, to a feedback coil.


Find Patent Forward Citations

Oikawa, Yasushi. (2015). Magnetic element control device, magnetic element control method and magnetic detection device (U.S. Patent No. 9209794). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9209794

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