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.

Date of Patent:
Jun. 06, 2017

Filed:

May. 15, 2015
Applicant:

Techtronic Power Tools Technology Limited, Tortola, VG;

Inventors:

Stuart Miller, Anderson, SC (US);

James A. Patton, Anderson, SC (US);

G. Michael Hornick, Anderson, SC (US);

Michael E. Buckner, Central, SC (US);

Nicolas J. Hanks, Pendleton, SC (US);

Frederick Bryan, Greenville, SC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 4/00 (2006.01); B25F 5/00 (2006.01);
U.S. Cl.
CPC ...
H02P 4/00 (2013.01); B25F 5/00 (2013.01);
Abstract

A power tool including a motor, a first battery pack, a second battery pack, a first switching element coupled between the first battery pack and the motor, a second switching element coupled between the second battery pack and the motor, and controller coupled to the first switching element and the second switching element. The controller includes a first pulse-width modulation (PWM) output coupled to the first switching element and a first PWM signal to selectively close the first switching element. The controller further includes a second PWM output coupled to the second switching element and a second PWM signal to selectively close the second switching element.


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