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:
Feb. 25, 2014
Filed:
Aug. 05, 2010
Youngho Hong, Changwon-si, KR;
Yangkwang Choi, Changwon-si, KR;
Wonseok Kim, Changwon-si, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An apparatus and method for driving a compressor of an air conditioner are disclosed. When compensating for load torque of a compressor (e.g., a single-rotary compressor) of an air conditioner, a method for providing a compensation torque using an optimum phase compensation angle is used. In relation to a phase current or a frequency of a given motor, an optimum phase compensation angle causing a minimum speed ripple is measured, and the measured optimum phase compensation angle is stored in the form of a table. In the actual driving of the motor, the method applies a compensation torque having an optimum phase compensation angle to the motor by referring to the table.