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:
Mar. 01, 2022
Filed:
Mar. 27, 2020
Sz Dji Technology Co., Ltd., Shenzhen, CN;
Zhenhao Zhou, Shenzhen, CN;
Zihan Chen, Shenzhen, CN;
SZ DJI TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A method of obtaining a mechanical position of a motor for an ESC includes obtaining magnetic field strengths of two or more Hall sensors respectively and determining the mechanical position of the motor based on the magnetic field strengths of the two or more Hall sensors. The magnetic field strengths are obtained by measuring a magnetic leakage of two or more pairs of magnetic poles by the two or more Hall sensors. The motor includes two or more Hall sensors and two or more pairs of magnetic poles. The motor is connected to the ESC; a phase difference between the two or more Hall sensors is a preset angle; and arrangements between each pair of magnetic poles and the two or more Hall sensors are different.