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. 10, 2020
Filed:
Sep. 08, 2017
Applicant:
Black & Decker Inc., New Britain, CT (US);
Inventor:
John D. Cox, Lutherville, MD (US);
Assignee:
Black & Decker Inc., New Britain, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/22 (2006.01); H02P 6/28 (2016.01); H02P 4/00 (2006.01); H02P 6/14 (2016.01); H02J 9/06 (2006.01); H02M 7/5387 (2007.01); H02P 27/06 (2006.01); H02P 6/12 (2006.01); H02P 25/18 (2006.01); H02P 27/08 (2006.01); B25F 5/02 (2006.01); H02M 3/10 (2006.01); H02P 6/08 (2016.01); H02P 6/182 (2016.01);
U.S. Cl.
CPC ...
H02P 6/12 (2013.01); B25F 5/02 (2013.01); H02J 9/061 (2013.01); H02M 3/10 (2013.01); H02M 7/53875 (2013.01); H02P 4/00 (2013.01); H02P 6/085 (2013.01); H02P 6/14 (2013.01); H02P 6/182 (2013.01); H02P 6/28 (2016.02); H02P 25/184 (2013.01); H02P 25/22 (2013.01); H02P 27/06 (2013.01); H02P 27/08 (2013.01); H02P 2209/01 (2013.01);
Abstract
A power tool is provided including: an electric brushless direct current (BLDC) motor having rotor and a stator defining phases; a power unit including a first switch circuit connected electrically between a first power supply and the motor, and a second switch circuit connected electrically between a second power supply and the motor; and a controller configured to control a switching operation of the first switch circuit and the second switch circuit to regulate a supply of power from at least one of the first power supply and/or the second power supply to the motor.