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:
Jan. 11, 2022
Filed:
May. 12, 2020
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Hongwei Wang, Nanjing, CN;
Weipeng Chen, Nanjing, CN;
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Abstract
A power tool, includes a power supply module for connecting to AC power; a brushless motor including a rotor and a stator winding; a rectifier module configured to receive the AC power from the power supply module and output a DC bus voltage; a position detection module for detecting a position signal of the brushless motor; a MCU chip configured to receive the position signal of the brushless motor detected by the position detection module and output a driving signal according to the position signal, where the MCU chip includes a controller; and a driving circuit configured to receive the driving signal from the MCU chip to drive the brushless motor, where the driving circuit is connected in series between the MCU chip and the stator winding of the brushless motor.