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:
Feb. 06, 2001
Filed:
Aug. 13, 1999
Jose R. Diaz, Chicago, IL (US);
George R. Gawell, Buffalo Grove, IL (US);
Neal R. McCurdy, Highland Park, IL (US);
S-B Power Tool Company, Chicago, IL (US);
Abstract
A battery charger is adapted to increase a charge current applied to at least one battery from a predetermined supply voltage. The charger includes a supply voltage generating device coupled to an AC voltage source for generating the predetermined supply voltage and a charging circuit electrically connected to the supply voltage generating device. The charging circuit includes a first capacitor and a second capacitor AC coupled to the first capacitor. The charging circuit is adapted to apply the charge current from the supply voltage generating device to the at least one battery through the first capacitor during a first half of a charging cycle, and store the charge current from the supply voltage generating device in the second capacitor during a second half of the charging cycle. The stored charge energy is then applied to the at least one battery during the first half of the charging cycle to increase the total charge current being applied to the at least one battery during the first half of the charging cycle.