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. 18, 2003
Filed:
Oct. 16, 2002
David Freeman, McKinney, TX (US);
Jose Antonio Vieira Formenti, Allen, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A capacity gauge is provided that measures a selected battery capacity of a plurality of batteries in a multiple battery system. A capacity gauge and a battery current sense resistor reside on the end equipment, while the battery pack contains minimal information associated with the battery pack. Control circuits provide for proper pack selection and pack connection timing, as well as capacity gauge synchronization. Power up/down circuits provide power to control logic, the selection circuits and capacity gauge at power up, power down and battery pack removal. The system is powered by a selected battery pack after the battery pack selection is executed, and the selected battery pack monitored by the capacity gauge.