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, 2020
Filed:
Jan. 03, 2019
Milwaukee Electric Tool Corporation, Brookfield, WI (US);
Carl B. Westerby, Menomonee Falls, WI (US);
Timothy R. Obermann, Waukesha, WI (US);
Alex Huber, Menomonee Falls, WI (US);
MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US);
Abstract
A power tool including a three-phase DC motor, a power switching network, a power source, and an electronic processor. A first phase of the motor is connected between a first high side electronic switch and a first low side electronic switch, and between a second high side electronic switch and a second low side electronic switch. The first high side electronic switch is parallel to the second high side electronic switch, and the first low side electronic switch is parallel to the second low side electronic switch. The electronic processor receives an indication to stop the motor, and deactivates the first high side electronic switch and the first low side electronic switch, and activates the second high side electronic switch and the second low side electronic switch such that the back-electromagnetic force generated by the motor is connected in a second polarity relative to the power source.