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:
Jul. 26, 2022
Filed:
Dec. 18, 2018
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventor:
Min Gi Kim, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); H02K 11/33 (2016.01); H02K 1/16 (2006.01); H02K 3/28 (2006.01); H02K 3/48 (2006.01); H02K 7/09 (2006.01);
U.S. Cl.
CPC ...
H02P 1/04 (2013.01); H02K 1/165 (2013.01); H02K 3/28 (2013.01); H02K 3/48 (2013.01); H02K 7/09 (2013.01); H02K 11/33 (2016.01);
Abstract
A motor driving device which can reduce a load burden on a rotating shaft when a magnetic bearing is initially operated. When a rotor and a stator are initially aligned, the motor driving device can apply a greater current to a coil positioned farthest away from the ground among a plurality of coils than to the other coils, so as to reduce a levitation force necessary for initial alignment of the rotor and the stator.