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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.:

US 11940194 B1

PDFFull Text
Date of Patent:
Mar. 26, 2024

Filed:

Feb. 11, 2021

Power converting apparatus and air conditioner including the same

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Jinho Cho, Seoul, KR;

Taeyoung Park, Seoul, KR;

Jongwon Heo, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Jorge L Carrasquillo

Int. Cl.
CPC ...
F25B 49/02 (2006.01); H02M 1/084 (2006.01); H02M 3/156 (2006.01); H02M 5/458 (2006.01); H02P 5/46 (2006.01); H02P 27/04 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
F25B 49/025 (2013.01); F25B 49/022 (2013.01); H02M 1/084 (2013.01); H02M 3/156 (2013.01); H02M 5/458 (2013.01); H02P 5/46 (2013.01); H02P 27/045 (2013.01); H02P 27/08 (2013.01); F25B 2600/021 (2013.01); F25B 2600/024 (2013.01); F25B 2600/11 (2013.01); F25B 2700/151 (2013.01); F25B 2700/171 (2013.01); H02P 2201/03 (2013.01); H02P 2201/07 (2013.01); H02P 2201/11 (2013.01);
Abstract

A power converting apparatus includes: a rectifying unit configured to rectify an input AC power, a buck converter that is configured to step down a voltage of the rectified power and that is configured to output DC power having the step down voltage, a first inverter that is connected to an output terminal of the buck converter and that is configured to convert the DC power into AC power to drive a first motor, a second inverter that is connected to the output terminal of the buck converter, that is disposed in parallel to the first inverter, and that is configured to convert the DC power into AC power to drive a second motor, and a converter controller configured to control an output voltage of the DC power of the buck converter.

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