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. 23, 2019
Filed:
Mar. 13, 2017
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); H02P 21/22 (2016.01); H02P 27/08 (2006.01); H02P 29/62 (2016.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/025 (2013.01); H02P 21/22 (2016.02); H02P 27/08 (2013.01); H02P 29/62 (2016.02); F25B 13/00 (2013.01); F25B 2500/26 (2013.01); F25B 2600/021 (2013.01); F25B 2700/151 (2013.01); H02P 2203/09 (2013.01); Y02B 30/741 (2013.01);
Abstract
A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.