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:
Nov. 09, 1999
Filed:
Jul. 14, 1997
Applicant:
Inventors:
Lonnie G Johnson, Smyrna, GA (US);
Yong Su, Atlanta, GA (US);
Assignee:
Johnson Research & Development Company, Inc., Smyrna, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ; H02H / ;
U.S. Cl.
CPC ...
320122 ; 320162 ; 361 56 ;
Abstract
A rechargeable power supply overcharge protection circuit is provided with shunt circuits that shunt current about a battery or battery cell (15, 16 and 17) of a string of battery cells when it is charged to a maximum charge limit. The shunt circuit includes shunt regulators (20) connected across each battery cell.