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. 08, 2018
Filed:
Apr. 20, 2015
Applicants:
Hongliang Wang, Kingston, CA;
Yanfei Liu, Kingston, CA;
Inventors:
Hongliang Wang, Kingston, CA;
Yanfei Liu, Kingston, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/483 (2007.01); H02M 7/487 (2007.01); H02M 7/537 (2006.01); H02M 7/217 (2006.01); H02M 7/219 (2006.01);
U.S. Cl.
CPC ...
H02M 7/537 (2013.01); H02M 7/483 (2013.01); H02M 7/217 (2013.01); H02M 7/219 (2013.01); H02M 7/487 (2013.01); Y10T 307/50 (2015.04);
Abstract
Five-level topology units and inverters based on the five-level inverter units without a boost circuit. Cost is reduced by using only one AC filtering inductor and high efficiency is achieved in the absence of an extra boosting circuit. Leakage current is eliminated substantially by using a half-bridge inverter module. A five-level inverter including a five-level topology unit without a boost circuit to raise the input voltage is able to output the same AC power as a five-level full bridge inverter under the same working condition.