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. 19, 2024
Filed:
Sep. 29, 2022
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/18 (2016.01); H02P 23/14 (2006.01);
U.S. Cl.
CPC ...
H02P 21/18 (2016.02); H02P 23/14 (2013.01);
Abstract
A power tool includes a motor, an output shaft, a commutation detection device, and a controller. The commutation detection device is connected to the motor and used for obtaining commutation information of the motor. The controller is capable of outputting a control signal to control the motor to rotate. When the commutation information does not match a preset commutation condition, the control signal is adjusted based on the commutation information such that a rotational speed of the motor is maintained to be a target rotational speed.