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. 14, 2020

Filed:

Feb. 28, 2015
Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Zhongyong Xu, Shenzhen, CN;

David Zheng, Shenzhen, CN;

Xizheng Liao, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/14 (2006.01); H02J 9/06 (2006.01);
U.S. Cl.
CPC ...
H02J 9/062 (2013.01); H02J 3/14 (2013.01);
Abstract

A UPS circuit, comprising a rectification phase leg (PL) for rectification, which is used for converting a received alternating current into a direct current; inversion phase legs (PL, PL, PL) for inversion, which are used for inverting the direct current output by the rectification phase leg into an alternating current; a failure detection device (D) which is used for detecting whether an inversion phase leg has failed; a redundant inversion phase leg (PL), with an input end thereof being connected to an output end of the rectification phase leg; and a control device which is used for receiving a signal sent by the failure detection device and is also used for enabling the redundant inversion phase leg to replace the inversion phase leg which has failed when a failure occurs.


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