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:
May. 02, 2023
Filed:
Dec. 29, 2020
Korea Electronics Technology Institute, Seongnam-si, KR;
Jun Hyuk Choi, Bucheon-si, KR;
Joon Sung Park, Seoul, KR;
Jin Hong Kim, Suwon-si, KR;
Byong Jo Hyon, Anyang-si, KR;
Yong Su Noh, Seoul, KR;
Dong Myoung Joo, Bucheon-si, KR;
KOREA ELECTRONICS TECHNOLOGY INSTITUTE, Gyeonggi-Do, KR;
Abstract
This application relates to an absolute position detection device and detection method of a rotating body using a magnetic material. The device may include magnets coupled to a rotating body and configured to rotate together and having n pole pairs, wherein n is a natural number and (n+1) magnetic materials arranged adjacent to the magnets, spaced apart from each other by a predetermined interval, and configured to rotate together with the rotating body. The device may also include a first Hall sensor spaced apart from the magnets, installed to allow the magnetic materials to rotate in a space between the first Hall sensor and the magnets and configured to output a first signal based on the magnets when the magnetic materials approach the first Hall sensor. The device may further include a controller configured to measure an absolute position of the rotating body using the first signal.