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:
May. 27, 2025

Filed:

Dec. 28, 2022
Applicant:

Shenzhen Carku Technology Co., Limited, Guangdong, CN;

Inventors:

Yun Lei, Guangdong, CN;

Zhifeng Zhang, Guangdong, CN;

Jianping Lin, Guangdong, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/67 (2020.01); G01R 31/00 (2006.01); G01R 31/52 (2020.01); H02H 7/22 (2006.01);
U.S. Cl.
CPC ...
G01R 31/67 (2020.01); G01R 31/006 (2013.01); G01R 31/52 (2020.01); H02H 7/222 (2013.01);
Abstract

A switch identification circuit is provided. The switch identification circuit includes a detecting unit, a control unit, a connection unit, a first connection terminal, and a second connection terminal. The detecting unit is coupled with the first connection terminal and the second connection terminal, and configured to detect voltages at the two connection terminals to output a detection signal. The connection unit is electrically coupled with a power-supply device configured to provide a driving voltage to the two connection terminals. The control unit is coupled with the detecting unit and the connection unit, and configured to determine whether the first connection terminal and the second connection terminal are short-circuited according to the detection signal. If the two connection terminals are short-circuited, the control unit is configured to output a connection-enabling signal to the connection unit, to make the connection unit control the power-supply device to stop supplying the driving voltage.


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