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:
May. 17, 2022

Filed:

Sep. 23, 2020
Applicant:

Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);

Inventors:

Yujia Cui, Cedarburg, WI (US);

Garron K. Morris, Whitefish Bay, WI (US);

Lixiang Wei, Mequon, WI (US);

Assignee:

Rockwell Automation Technoligies, Inc., Mayfield Heights, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/5387 (2007.01); H02M 1/088 (2006.01); H02M 5/458 (2006.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02M 7/53876 (2021.05); H02M 1/088 (2013.01); H02M 5/4585 (2013.01); H02P 27/08 (2013.01);
Abstract

Methods, non-transitory computer readable mediums, and power conversion systems with a controller configured to provide modulated inverter switching control signals at a first switching frequency in response to an inverter current being greater than a first threshold and less than a second threshold, the second threshold being greater than the first threshold. The controller is further configured to provide the inverter switching control signals at a second switching frequency in response to the inverter current being greater than the second threshold, and to provide the inverter switching control signals at a third switching frequency in response to the inverter current being less than the first threshold, where the second switching frequency is less than the first switching frequency and the third switching frequency is greater than the first switching frequency.


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