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.
Patent No.:
Date of Patent:
Nov. 07, 2023
Filed:
Jun. 08, 2022
Applicant:
Eaton Intelligent Power Limited, Dublin, IE;
Inventors:
Stan Rex Simms, Arden, NC (US);
Thomas A. Farr, Candler, NC (US);
Donovan Gray, Hendersonville, NC (US);
Assignee:
Eaton Intelligent Power Limited, Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01); H02P 27/06 (2006.01); H02P 23/20 (2016.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); H02P 23/20 (2016.02);
Abstract
A converter of a variable frequency drive (VFD) is operated in a ramp-up mode to produce an AC output voltage for accelerating a motor. A loading of the converter is determined concurrent with the ramp-up mode. Transfer of the motor to a bypassed mode is conditioned on whether the determined loading in the ramp-up mode meets a criterion. In some embodiments, conditioning transfer to the bypassed mode comprises foregoing transition to the bypassed mode based on a comparison of the determined loading to an underloading threshold.