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:
Dec. 09, 1997

Filed:

Oct. 27, 1995
Applicant:
Inventors:

Sang Hoon Kim, Hoffman Estates, IL (US);

Andrew V Schultz, Mt. Prospect, IL (US);

Assignee:

Motorola Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 22 ; 320 35 ; 320 39 ;
Abstract

A method and system (400) for controlling battery charging including applying a predetermined voltage to a battery (500) to be charged, increasing the voltage applied to the battery (500) to a known maximum battery charging voltage, measuring a current supplied to the battery (500) at the maximum battery charging voltage, supplying a predetermined set of constant current charging levels, and setting a charging current level equal to one of the set of predetermined constant current charging levels based on the current supplied to the battery at the maximum battery charging voltage for minimizing an amount of time needed to charge the battery (500) and maximizing a useful life of the battery (500).


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