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:
Jan. 05, 2010
Filed:
Sep. 16, 2005
Russell L. Simpson, Miami, FL (US);
Joseph Patino, Pembroke Pines, FL (US);
Russell L. Simpson, Miami, FL (US);
Joseph Patino, Pembroke Pines, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A charging system () supplies a source voltage (Vco, FIG.) and a source current (Ico, FIG.) to a plurality of battery cells (). The charging system operates according to a method () including the steps of determining () a capacity for each of the plurality of battery cells (and), determining () a desired cutoff current (Ico, FIG.) for a select one of the plurality of battery cells () having the smallest capacity, determining () an optimal source cutoff current according to the capacity of the select one of the plurality of battery cells, adjusting () the source current according to the optimal source cutoff current, and upon the source current reaching the optimal source cutoff current, switching out the select one of the plurality of battery cells to allow continued charging of another cell until it is fully charged.