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.

Date of Patent:
Mar. 02, 2021

Filed:

Jul. 07, 2017
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Kenji Iwazaki, Tokyo, JP;

Takashi Yamakawa, Tokyo, JP;

Shigeo Umehara, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/219 (2006.01); H02P 27/06 (2006.01); F04D 25/06 (2006.01);
U.S. Cl.
CPC ...
H02M 7/219 (2013.01); F04D 25/0693 (2013.01); H02P 27/06 (2013.01);
Abstract

An AC-DC converting apparatus includes: a boost circuit including a reactor supplied with power supply voltage output from an alternating-current power supply, a first leg including a first upper-arm element and a first lower-arm element connected in series, and a second leg connected in parallel with the first leg and including a second upper-arm element and a second lower-arm element connected in series, and boosting the power supply voltage; and a first voltage detecting unit detecting the power supply voltage. When the power supply voltage is positive, the AC-DC converting apparatus causes the first lower-arm element and the second upper-arm element to perform boosting operation alternately every power supply cycle that is cycle of the power supply voltage, and when the power supply voltage is negative, the AC-DC converting apparatus causes the first upper-arm element and the second lower-arm element to perform boosting operation alternately every power supply cycle.


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