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.

Date of Patent:
May. 01, 2018

Filed:

Mar. 24, 2016
Applicant:

Sunpower Corporation, San Jose, CA (US);

Inventors:

Fernando Rodriguez, Austin, TX (US);

Hengsi Qin, Austin, TX (US);

Patrick Chapman, Austin, TX (US);

Assignee:

SunPower Corporation, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/797 (2006.01); H02M 5/16 (2006.01); H02M 1/12 (2006.01); H02M 1/15 (2006.01); H02M 5/458 (2006.01); H02M 7/48 (2007.01); H02M 7/5387 (2007.01); H02M 7/493 (2007.01); H02J 7/34 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 7/797 (2013.01); H02J 7/34 (2013.01); H02M 1/12 (2013.01); H02M 1/15 (2013.01); H02M 5/16 (2013.01); H02M 5/458 (2013.01); H02M 7/4807 (2013.01); H02M 7/493 (2013.01); H02M 7/5387 (2013.01); H02M 2001/007 (2013.01); H02M 2001/123 (2013.01); Y02B 70/1441 (2013.01);
Abstract

An inverter includes a transformer that includes a first winding, a second winding, and a third winding, a DC-AC inverter electrically coupled to the first winding of the transformer, a cycloconverter electrically coupled to the second winding of the transformer, an active filter electrically coupled to the third winding of the transformer. The DC-AC inverter is adapted to convert the input DC waveform to an AC waveform delivered to the transformer at the first winding. The cycloconverter is adapted to convert an AC waveform received at the second winding of the transformer to the output AC waveform having a grid frequency of the AC grid. The active filter is adapted to sink and source power with one or more energy storage devices based on a mismatch in power between the DC source and the AC grid.


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