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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 11387729 B1

PDFFull Text
Date of Patent:
Jul. 12, 2022

Filed:

Apr. 13, 2017

Buck-converter-based drive circuits for driving motors of compressors and condenser fans

Applicant:

Emerson Climate Technologies, Inc., Sidney, OH (US);

Inventor:

Joseph G. Marcinkiewicz, St. Peters, MO (US);

Assignee:

Emerson Climate Technologies, Inc., Sidney, OH (US);

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Muhammad S Islam

Assistant Examiner:

Zemenay T Truneh

Int. Cl.
CPC ...
B60H 1/32 (2006.01); H02M 1/42 (2007.01); H02M 1/08 (2006.01); H02M 1/14 (2006.01); H02M 1/32 (2007.01); H02M 1/44 (2007.01); H02M 7/06 (2006.01); F25B 49/02 (2006.01); H02P 27/06 (2006.01); H02M 5/458 (2006.01); H02P 5/74 (2006.01); H02M 7/5387 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/42 (2013.01); F25B 49/025 (2013.01); H02M 1/08 (2013.01); H02M 1/14 (2013.01); H02M 1/32 (2013.01); H02M 1/4225 (2013.01); H02M 1/44 (2013.01); H02M 5/458 (2013.01); H02M 7/06 (2013.01); H02P 5/74 (2013.01); H02P 27/06 (2013.01); F25B 2600/021 (2013.01); F25B 2600/024 (2013.01); F25B 2600/111 (2013.01); F25B 2700/151 (2013.01); H02M 1/008 (2021.05); H02M 1/0009 (2021.05); H02M 1/0032 (2021.05); H02M 1/327 (2021.05); H02M 1/4208 (2013.01); H02M 1/4216 (2013.01); H02M 1/4291 (2021.05); H02M 7/53871 (2013.01); Y02B 30/70 (2013.01); Y02B 70/10 (2013.01);
Abstract

A drive circuit is provided and includes a rectification circuit, a buck converter, a first inverter, and a second inverter. The rectification circuit is configured to rectify a first AC voltage signal to generate a rectified voltage signal. The buck converter is configured to downconvert the rectified voltage signal to a DC voltage signal, wherein the DC voltage signal is supplied to a DC bus. The first inverter is configured to convert the DC voltage signal to a second AC voltage signal and supply the second AC voltage signal to a compressor motor. The second inverter is configured to convert the DC voltage signal to a third AC voltage signal and supply the third AC voltage signal to a condenser fan motor. Peak voltages of the second AC voltage signal and the third AC voltage signal are less than peak voltages of the first AC voltage signal.

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