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:
Oct. 08, 2024

Filed:

May. 06, 2021
Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Huaqiang Li, Menomonee Falls, WI (US);

Xiaoling Li, Guangdong, CN;

Belly Lei, Guangdong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/537 (2006.01); H02M 1/32 (2007.01); H02P 6/20 (2016.01); H02P 6/28 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02M 7/537 (2013.01); H02M 1/32 (2013.01); H02P 6/20 (2013.01); H02P 6/28 (2016.02); H02P 27/08 (2013.01);
Abstract

A system includes: a pre-charge circuit configured to produce direct current (DC) electrical power; a common DC bus; and a plurality of inverters, each inverter including: a local DC bus; a capacitor network connected to the local DC bus; an electrical network connected to the local DC bus, the electrical network configured to generate an alternating current (AC) drive signal; and a plurality of switching assemblies, each switching assembly being associated with one of the inverters, and each switching assembly configured to control whether the local DC bus and the capacitor network of the associated inverter are electrically connected to the common DC bus or to the pre-charge circuit.


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