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:
Jun. 28, 2011

Filed:

Oct. 05, 2007
Applicant:

Atsuo Sakai, Okazaki, JP;

Inventor:

Atsuo Sakai, Okazaki, JP;

Assignee:

JTEKT Corporation, Osaka-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/08 (2006.01); H02H 7/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A microcomputer compares a low voltage LV and a middle voltage MV to a predetermined voltage Vth set at a value in the vicinity of the grounded voltage (0 V) on the basis of detected phase voltages Vu, Vv and Vw, and thus, detects a break in a power supply line.


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