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:
Jul. 21, 2009
Filed:
Apr. 09, 2008
David A. Carrier, Aberdeen, MD (US);
Danh T. Trinh, Parkville, MD (US);
Geoffrey S. Howard, Columbia, MD (US);
Andrew E. Seman, Jr., White Marsh, MD (US);
Daniele C. Brotto, Baltimore, MD (US);
John C. Vanko, Timonium, MD (US);
Robert Bradus, Bel Air, MD (US);
David A. Carrier, Aberdeen, MD (US);
Danh T. Trinh, Parkville, MD (US);
Geoffrey S. Howard, Columbia, MD (US);
Andrew E. Seman, Jr., White Marsh, MD (US);
Daniele C. Brotto, Baltimore, MD (US);
John C. Vanko, Timonium, MD (US);
Robert Bradus, Bel Air, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A battery monitoring device of a battery pack configured for powering a cordless power tool may include an integrated circuit connected to a microprocessor of the pack that is external to the integrated circuit, and which is connected to each of N battery cells of the pack. The integrated circuit may be configured to take, singly or sequentially, a sampled reading comprising one of an individual cell voltage or a total pack voltage for all cells in the pack. The sampled reading is filtered in the integrated circuit prior to being read by the microprocessor.