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:
Mar. 26, 2019
Filed:
Jul. 14, 2014
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventor:
Adam M. White, Belvidere, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/757 (2006.01); H02M 7/537 (2006.01); H02M 7/487 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 7/537 (2013.01); H02M 7/487 (2013.01); H02M 2001/0048 (2013.01); Y02B 70/1491 (2013.01);
Abstract
A phase leg for a multilevel inverter includes a first direct current lead, an outer solid-state switch, an inner solid-state switch, and a midpoint-clamping device. The outer solid-state switch device is connected to the first direct current lead. The inner solid-state switch is connected in series with the outer solid-state switch. The midpoint-clamping device is a bi-directional current flow device connected between a second DC lead and a node between the inner and outer solid-state switches for reducing conduction losses associated with current flowing through the phase leg.