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:
Jan. 11, 2022

Filed:

Jan. 17, 2020
Applicant:

Chengli LI, Suzhou, CN;

Inventors:

Chengli Li, Suzhou, CN;

Guolan Yue, Suzhou, CN;

Long Chen, Suzhou, CN;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/06 (2006.01); H02H 3/10 (2006.01); H02H 3/26 (2006.01);
U.S. Cl.
CPC ...
H02H 3/105 (2013.01); H02H 3/06 (2013.01); H02H 3/26 (2013.01);
Abstract

A leakage current protection device with automatic reset after power outage includes a switch, a power supply module, a leakage current detection module, a self-testing module, a drive control module, and a first reset module. The drive control module drives the switch based on a leakage current signal from the leakage current detection module and/or a self-test fault signal from the self-testing module. The first reset module functions to automatically set the leakage current protection device in a connected state when power resumes after an outage. Another leakage current protection device with manual reset after power outage includes similar components above and also a second reset module, which functions to automatically set the leakage current protection device in a disconnected state when power resumes after an outage; the device can then be manually reset using a reset switch. These two devices can suit different needs of different electrical appliances.


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