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. 18, 2017
Filed:
Nov. 07, 2014
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06F 37/30 (2006.01); D06F 33/02 (2006.01); H02P 6/22 (2006.01); H02P 1/16 (2006.01); H02P 6/18 (2016.01); H02P 21/34 (2016.01); H02P 6/21 (2016.01);
U.S. Cl.
CPC ...
D06F 37/304 (2013.01); D06F 33/02 (2013.01); H02P 1/16 (2013.01); H02P 6/18 (2013.01); H02P 6/21 (2016.02); H02P 6/22 (2013.01); H02P 21/34 (2016.02); D06F 2202/065 (2013.01); D06F 2202/10 (2013.01); D06F 2202/12 (2013.01); D06F 2204/065 (2013.01); D06F 2222/00 (2013.01); Y02B 40/52 (2013.01);
Abstract
A laundry treatment machine includes a drum, a motor to rotate the drum, and a driving unit to drive the motor, wherein the driving unit includes an inverter to convert direct current (DC) voltage into alternating current (AC) voltage and to output the AC voltage to the motor and an inverter controller to control the inverter to supply an alignment current to the motor so as to align the motor during a starting operation of the motor and to supply a torque current for rotating the motor to the motor together with the alignment current after the motor is aligned. Such a laundry treatment apparatus prevents a reverse rotation phenomenon of the drum due to load.