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. 03, 2013
Filed:
Oct. 21, 2011
William Densham, Los Gatos, CA (US);
Constantin Bucur, Sunnyvale, CA (US);
Flavius Lupu, San Jose, CA (US);
Jiun Heng Goh, Sunnyvale, CA (US);
Stefan Maireanu, Sunnyvale, CA (US);
William Densham, Los Gatos, CA (US);
Constantin Bucur, Sunnyvale, CA (US);
Flavius Lupu, San Jose, CA (US);
Jiun Heng Goh, Sunnyvale, CA (US);
Stefan Maireanu, Sunnyvale, CA (US);
O2Micro, Inc., Santa Clara, CA (US);
Abstract
In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set of cells based on the charging currents. A ratio between a first turn number of a first secondary winding of the secondary windings and a second turn number of a second secondary winding of the secondary windings is determined by a nominal voltage ratio between two corresponding cells of the set of cells.