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:
Jun. 15, 2004
Filed:
May. 30, 2002
Michel Perelle, Parcay-Meslay, FR;
Alcatel, Paris, FR;
Abstract
An electrical battery comprises a plurality of cells connected in series which are charged by a charger under the control of a battery management system including an individual current shunt circuit in parallel with each cell. The shunt circuit is activated if the voltage at the terminals of the cell exceeds a minimum balancing threshold value. A higher balancing threshold voltage is substituted for the minimum balancing threshold voltage if the battery has not been supplied with power by the charger for a time exceeding a particular time-delay. In the battery management system a single-wire control daisychain connects individual interfaces assigned to each cell of the battery in series to a common control interface.