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:
Dec. 17, 2024

Filed:

Jun. 14, 2021
Applicant:

Milwaukee Electric Tool Corporation, Brookfield, WI (US);

Inventors:

Alexander T. Huber, Menomonee Falls, WI (US);

My Uyen Nguyen, Cambridge, MA (US);

Assignee:

Michael Best & Friedrich LLP, Brookfield, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/244 (2021.01); F02B 63/02 (2006.01); H01M 50/247 (2021.01); H02J 7/00 (2006.01); H02P 6/06 (2006.01);
U.S. Cl.
CPC ...
H01M 50/244 (2021.01); H01M 50/247 (2021.01); H02J 7/0045 (2013.01); H02P 6/06 (2013.01); F02B 63/02 (2013.01); H02J 2310/18 (2020.01);
Abstract

Gas-engine replacement devices described herein include a housing that includes battery receptacle configured to removably receive a battery pack, a motor located within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to selectively provide power from the battery pack to the motor, and an electronic processor. The electronic processor is coupled to the power switching network and configured to receive a current measurement associated with the motor and control the power switching network according to one of a freewheeling mode or a synchronous rectification mode based on the current measurement.


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