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:
Feb. 08, 2022

Filed:

Aug. 30, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Takashi Kuwahara, Tokyo, JP;

Yoshihiro Akeboshi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 29/26 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
G01R 29/26 (2013.01); H03K 5/24 (2013.01);
Abstract

A noise detection circuit includes an open and close switch connected onto a signal line for transmitting a detection signal of an extraneous noise, and the open and close switch is configured so as to be in an off state during a time period when the switching of the conduction state of a solid state switch is performed by a control circuit, whereas the open and close switch is configured so as to be in an on state during a time period when the switching of the conduction state of the solid state switch is not performed. As a result, an extraneous noise occurring irregularly can be detected.


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