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:
Oct. 08, 2019
Filed:
Sep. 30, 2015
Applicant:
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Inventors:
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 27/08 (2006.01); H02M 7/5395 (2006.01); H02M 7/06 (2006.01); H02M 7/12 (2006.01); H02M 7/48 (2007.01); H02M 1/42 (2007.01); H02M 7/5387 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); H02M 1/4225 (2013.01); H02M 7/06 (2013.01); H02M 7/12 (2013.01); H02M 7/48 (2013.01); H02M 7/5395 (2013.01); H02M 7/53875 (2013.01); H02M 2001/007 (2013.01); Y02B 70/126 (2013.01);
Abstract
An electric power conversion device includes: a converter circuit which includes a boost chopper; a capacitor which is connected between output terminals of the converter circuit; a boost chopper which boosts a terminal voltage of the capacitor; a multiphase inverter circuit; and a boost chopper controller. In a case where the operation of the boost chopper is continuously stopped, the capacitor has a capacitance allowing the terminal voltage of the capacitor to have a pulse frequency twice as high as that of the AC power source. The multiphase inverter circuit has an output power which is allowed to fluctuate in synchronization with a power source.