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:
Sep. 15, 2020
Filed:
Feb. 03, 2016
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventors:
Dong Jiang, Manchester, CT (US);
Shashank Krishnamurthy, Glastonbury, CT (US);
Daryl J. Marvin, Farmington, CT (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/30 (2006.01); H02P 27/08 (2006.01); H02P 21/00 (2016.01);
U.S. Cl.
CPC ...
B66B 1/306 (2013.01); H02P 21/00 (2013.01); H02P 27/08 (2013.01);
Abstract
A drive and motor system and method for a six phase machine with negligible common-mode voltage is provided. The six-phase machine includes six phase windings divided into at least two windings groups configured to generate a zero common-mode pulse width modulation. The drive and motor system and method can also include at least one direct current source and a six phase inverter switching between positive and negative power of the at least one direct current source.