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:
May. 01, 2012
Filed:
Aug. 22, 2007
Applicants:
Ned Mohan, St. Paul, MN (US);
Krushna K. Mohapatra, Minneapolis, MN (US);
Inventors:
Ned Mohan, St. Paul, MN (US);
Krushna K. Mohapatra, Minneapolis, MN (US);
Assignee:
Regents of The University of Minnesota, Minneapolis, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An AC machine control system for an AC machine (motor, generator, transformer, etc.) having open-ended windings, the control system comprising a drive circuit configured to transfer AC power between a first set of voltages and each end of the open-ended windings without the use of a substantial energy storage device, while eliminating common mode voltage and/or injecting zero sequence voltages.