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. 23, 2021

Filed:

Jan. 04, 2018
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Marius Michael Mechlinski, Garching, DE;

Stefan Schroeder, Garching, DE;

Jie Shen, Shanghai, CN;

Fan Zhang, Shanghai, CN;

Zhihui Yuan, Garching, DE;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/327 (2006.01); H02H 5/04 (2006.01); H02H 3/08 (2006.01); H02H 3/20 (2006.01); H02M 1/32 (2007.01); H02M 1/088 (2006.01); H03K 17/10 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3275 (2013.01); H02H 3/08 (2013.01); H02H 3/20 (2013.01); H02H 5/04 (2013.01); H02M 1/088 (2013.01); H02M 1/32 (2013.01); H03K 17/102 (2013.01); H02M 2001/322 (2013.01); H03K 2217/0027 (2013.01);
Abstract

A method for protecting a circuit is provided, wherein the circuit comprises a plurality of switch devices connected in series. The method comprises detecting a failure risk indicator of each switch device; determining whether each switch device has a failure risk based on the corresponding failure risk indicator; and making each of the switch device(s) having the failure risk in a constant on-state to eliminate the failure risk and prevent a failure of the switch device optionally if a number of the switch device(s) which have or had the failure risk is less than or equal to a preset value.


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