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:
Nov. 29, 2022

Filed:

May. 07, 2021
Applicant:

Delta Electronics (Shanghai) Co., Ltd, Shanghai, CN;

Inventors:

Teng Liu, Shanghai, CN;

Jianping Ying, Shanghai, CN;

Lifeng Qiao, Shanghai, CN;

Xin Wang, Shanghai, CN;

Hongwei Xiao, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/217 (2006.01); H02M 1/12 (2006.01); H02M 7/08 (2006.01); H02M 7/487 (2007.01); H02M 7/483 (2007.01); H02M 1/44 (2007.01);
U.S. Cl.
CPC ...
H02M 7/2173 (2013.01); H02M 1/123 (2021.05); H02M 1/126 (2013.01); H02M 7/08 (2013.01); H02M 7/483 (2013.01); H02M 7/487 (2013.01); B60L 2210/30 (2013.01); H02M 1/44 (2013.01); H02M 7/217 (2013.01);
Abstract

A conversion device includes: an inductor connected to the AC power grid; a first-stage converter configured to output a bus voltage based on the AC power grid; a second-stage converter configured to convert the bus voltage into an output voltage to the load; and a filtering network, wherein a first resistance-capacitance circuit is disposed between the first and third terminals of the filtering network, a second resistance-capacitance circuit is disposed between the second and third terminals of the filtering network, the first terminal of the filtering network is connected to the AC power grid, the second terminal of the filtering network is connected to the bus or the second terminal of the second-stage converter, and the third terminal of the filtering network is grounded through a first capacitor.


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