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:

Nov. 18, 2020
Applicant:

Renesas Electronics Corporation, Tokyo, JP;

Inventors:

Toshiki Yamahira, Tokyo, JP;

Toshihiro Kawano, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 29/02 (2016.01); G01R 31/28 (2006.01); H02P 29/032 (2016.01); G01R 31/327 (2006.01); H01H 9/54 (2006.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
G01R 31/2827 (2013.01); G01R 31/3277 (2013.01); H01H 9/54 (2013.01); H02P 29/025 (2013.01); H02P 29/032 (2016.02);
Abstract

A functional safety system with high reliability is provided. The functional safety system includes power source apparatuses VSand VS, voltage monitoring apparatuses VMand VM, semiconductor devices SCand SC, interruption circuits INand IN, and a motor MT. A the voltage converting circuit DAof the voltage monitoring apparatus VMgenerates a detected voltage VAfrom a power source voltage VDDon the basis of a switching signal VC, and a voltage converting circuit DAof the voltage monitoring apparatus VMgenerates a detected voltage VAfrom the power source voltage VDDon the basis of a switching signal VC


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