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:
Feb. 14, 2017
Filed:
Jan. 06, 2015
Applicants:
Majid Pahlevaninezhad, Kingston, CA;
Shangzhi Pan, Kingston, CA;
Praveen Jain, Kingston, CA;
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/68 (2006.01); H02M 3/24 (2006.01); H02M 7/44 (2006.01); H02M 7/537 (2006.01); H02M 7/5387 (2007.01); H02M 1/12 (2006.01); H02M 1/00 (2006.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H02M 7/5387 (2013.01); H02M 1/126 (2013.01); H02M 2001/0058 (2013.01); H02M 2007/4815 (2013.01); Y02B 70/1441 (2013.01); Y02B 70/1491 (2013.01);
Abstract
Systems and methods relating to zero voltage switching for inverters. A full bridge inverter is used in conjunction with a passive auxiliary circuit and an output filter. A control system controls the current by way of the auxiliary circuit and injects a high quality current to a power grid. The control system adjusts the duty ratio and switching frequency of the gate pulses applied to the power semiconductors in the full-bridge inverter. As well, the control system adjusts the phase shift between gate pulses for both the leading leg and lagging leg power semiconductors to control the current passing through the auxiliary circuit.