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:
May. 19, 2020
Filed:
Aug. 09, 2017
Black & Decker Inc., New Britain, CT (US);
Michael K. Forster, White Hall, MD (US);
John C. Vanko, Timonium, MD (US);
Bhanuprasad V. Gorti, Perry Hall, MD (US);
Tal Gottesman, Lutherville, MD (US);
Black & Decker Inc., New Britain, CT (US);
Abstract
A power tool is provided including a brushless electric motor, a switching arrangement having motor switches and interposed between the electric motor and a power supply, and a controller configured to control a switching operation of the motor switches for driving the electric motor and enforce a current limit on the current delivered to the electric motor. The controller receives a measure of current passing from the power supply to the switching arrangement and takes corrective action to reduce current delivered to the electric motor if the measured current exceeds the current limit. The controller further receives a signal corresponding to at least one of a type and/or a nominal voltage of the power supply and sets the current limit based on the received signal.