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:
Aug. 27, 2013
Filed:
Sep. 15, 2008
Cheng Bao, Waterloo, CA;
Martin Guthrie, Moffat, CA;
Frank Bognar, Mississauga, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
Various embodiments are described herein for a charging device and an associated charging method for charging a rechargeable battery. The charging device generally includes a current source that is coupled to a power source and configured to provide a charging current to the rechargeable battery. The charging device further includes a controller that is configured to control the current source to provide the charging current with an amplitude that is less than the charging current required by the rechargeable battery in a given charging state to bring an output voltage of the current source towards the voltage of the rechargeable battery.