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:
Oct. 19, 2021

Filed:

Oct. 19, 2019
Applicant:

Contemporary Amperex Technology Co., Limited, Ningde, CN;

Inventors:

Jirong Huo, Ningde, CN;

Yanhui Fu, Ningde, CN;

Le Chu, Ningde, CN;

Qiandeng Li, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/36 (2020.01);
U.S. Cl.
CPC ...
G01R 31/3648 (2013.01);
Abstract

The present application provides a high voltage detection circuit and method. The high voltage detection circuit includes a current adjustment module configured to be turned on or off to adjust a current in a high voltage circuit, a first detection module configured to provide a detection signal and transmit the detection signal to a processor module and the processor module configured to determine whether a master positive switch or a master negative switch is in malfunction according to a desired operation state of the master positive switch, a desired operation state of the master negative switch and the detection signal.


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