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:
Mar. 18, 2025

Filed:

Feb. 08, 2023
Applicant:

Lian Zheng Electronics (Shenzhen) Co., Ltd., Shenzhen, CN;

Inventors:

Kai Liu, Shenzhen, CN;

Yusong Ding, Shenzhen, CN;

Zhongyong Xu, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H02M 1/4258 (2013.01); H02M 1/4225 (2013.01);
Abstract

The present invention provides a power factor correction (PFC) and DC-DC multiplexing converter and an uninterruptible power supply including the same. The multiplexing converter includes a multiplexing bridge arm and a battery hookup bridge arm. During power supply of a battery, the converter controls one electrode of a positive electrode and a negative electrode of the battery to be alternately connected to a neutral point and one of positive and negative direct current buses that has the same polarity as the electrode, to enable a level of the electrode of the battery to synchronously and alternately rise or drop with the alternate supply of power to the positive and negative direct current buses; or controls one electrode of a positive electrode and a negative electrode of the battery to be constantly connected to the neutral point. A current converter of the present invention has less battery charge-discharge potential jumps, higher level of integration, lower costs, and better electromagnetic compatibility characteristics, and is more applicable to a single-battery uninterruptible power supply system.


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