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:
Jul. 14, 2026

Filed:

Sep. 27, 2024
Applicant:

Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Yuan Yao, Shanghai, CN;

Xinyu Yu, Shanghai, CN;

Kai Xin, Shanghai, CN;

Zhaoqi Cai, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02J 3/0012 (2026.01); H02J 3/38 (2006.01); H02J 101/24 (2026.01);
U.S. Cl.
CPC ...
H02M 1/327 (2021.05); H02J 3/0012 (2020.01); H02J 3/38 (2013.01); H02J 2101/24 (2026.01);
Abstract

Example power converters and detection methods are described. One example power converter includes a control device, a plurality of wiring terminals, a power conversion circuit, and a plurality of temperature detection devices. The control device is configured to: when an absolute value of a difference between a temperature value of one wiring terminal in the plurality of wiring terminals and a first reference temperature value is greater than or equal to a first temperature difference threshold, output a signal indicating that an abnormality occurs in the plurality of wiring terminals. In this application, a relative change of a temperature of one wiring terminal relative to another wiring terminal can be directly determined based on temperature values of the plurality of wiring terminals, thereby quickly determining, based on a magnitude of the relative change, whether there is an abnormal temperature rise caused by loose connections in the plurality of wiring terminals.


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