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:
May. 26, 2015

Filed:

Feb. 01, 2012
Applicants:

Min Ho Heo, Gyunggi-do, KR;

Tae Hoon Kim, Gyunggi-do, KR;

Sung Jun Park, Gwangju, KR;

Doo Young Song, Gyunggi-do, KR;

Tae Won Lee, Gyunggi-do, KR;

Inventors:

Min Ho Heo, Gyunggi-do, KR;

Tae Hoon Kim, Gyunggi-do, KR;

Sung Jun Park, Gwangju, KR;

Doo Young Song, Gyunggi-do, KR;

Tae Won Lee, Gyunggi-do, KR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/122 (2006.01); H02M 5/42 (2006.01); H02M 7/68 (2006.01); H02M 7/5387 (2007.01); H02M 7/483 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 7/483 (2013.01); H02M 2001/0074 (2013.01);
Abstract

There is provided an even-level inverter, including: a voltage-dividing circuit dividing input DC power into an even number of voltage levels; a plurality of switching devices connected to individual nodes of the voltage-dividing circuit having the even number of voltage levels; and a bidirectional switching device connected to the individual nodes of the voltage-dividing circuit through at least one of the plurality of switching devices and including at least two transistors. According to the present invention, the bidirectional switching device is implemented without a diode to thereby reduce conduction loss caused due to an anti-parallel diode included in the related art bidirectional switching device, and a neutral point of the voltage-dividing circuit is electrically separated from the switching devices to thereby control reactive power.


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