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:
Dec. 12, 2017
Filed:
Sep. 16, 2015
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Harry H. Chai, Caledonia, IL (US);
Waleed M. Said, Rockford, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); H02P 27/08 (2006.01); H02M 1/14 (2006.01); H02M 1/00 (2006.01); H02M 7/483 (2007.01); H02M 7/487 (2007.01);
U.S. Cl.
CPC ...
F02C 7/26 (2013.01); H02M 1/00 (2013.01); H02M 1/14 (2013.01); H02M 7/483 (2013.01); H02M 7/487 (2013.01); H02P 27/08 (2013.01); F05D 2260/85 (2013.01);
Abstract
A start inverter for an electric engine start scheme includes an inverter phase leg with solid-state switches and a pulse width modulator operatively connected to the solid-state switches of the inverter phase leg. The pulse width modulator provides command signals to the solid-state switches of the inverter phase leg to invert direct current into alternating current with less ripple than a start inverter with two solid-state switches per phase leg.