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:
Sep. 30, 2025
Filed:
May. 05, 2023
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Hong Zhu, Nanjing, CN;
Zhijian Lu, Nanjing, CN;
Assignee:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); B23Q 5/027 (2006.01); B23Q 5/04 (2006.01); B25B 21/00 (2006.01); B25F 5/00 (2006.01);
U.S. Cl.
CPC ...
B25B 21/008 (2013.01); B23Q 5/027 (2013.01); B23Q 5/04 (2013.01); B25F 5/001 (2013.01);
Abstract
A power tool includes a motor including a rotor and multi-phase stator windings; a driver circuit having multiple switch elements for outputting switch signals to drive the motor to rotate; and a controller electrically connected to at least the driver circuit and the motor. The controller is configured to acquire rotor position information of the motor and adjust a resultant magnetic potential of the motor according to the rotor position information such that an output electrical parameter of the motor corresponding to the resultant magnetic potential is within a preset parameter range.