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:
Apr. 06, 1993
Filed:
Oct. 10, 1991
Applicant:
Inventor:
Steven S Lee, Northbrook, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ; H01M / ;
U.S. Cl.
CPC ...
320-2 ; 320 15 ; 429-7 ;
Abstract
Battery type is determined by measuring effective resistance of a thermistor/resistor network (205, 206, and 207) and one or more of a plurality of current sources (303-305) is enabled to provide the appropriate charging current. Measurement of necessary charging parameters and provision of appropriate charging current are accomplished through an interface to the battery pack undergoing charge that comprises only three connections (313-315).