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. 16, 2017

Filed:

Aug. 30, 2010
Applicants:

Kazunori Hatakeyama, Tokyo, JP;

Takuya Shimomugi, Tokyo, JP;

Shinya Matsushita, Tokyo, JP;

Naoki Wakuta, Tokyo, JP;

Tsutomu Makino, Aichi, JP;

Shinsaku Kusube, Tokyo, JP;

Inventors:

Kazunori Hatakeyama, Tokyo, JP;

Takuya Shimomugi, Tokyo, JP;

Shinya Matsushita, Tokyo, JP;

Naoki Wakuta, Tokyo, JP;

Tsutomu Makino, Aichi, JP;

Shinsaku Kusube, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 19/00 (2006.01); F25B 49/02 (2006.01); H02M 7/5387 (2007.01); H02P 6/14 (2016.01); H02P 6/15 (2016.01); H02P 29/62 (2016.01); F25B 30/02 (2006.01);
U.S. Cl.
CPC ...
F25B 49/025 (2013.01); H02M 7/53875 (2013.01); H02P 6/14 (2013.01); H02P 6/15 (2016.02); H02P 29/62 (2016.02); F25B 30/02 (2013.01); F25B 2600/021 (2013.01); F25B 2700/2106 (2013.01); Y02B 30/741 (2013.01);
Abstract

An adder adds a phase θplus, which is n times a size of 60 degrees, to a phase output from a phase switching unit and outputs the phase as a voltage command phase θ. A voltage generation unit generates voltage command value based on the voltage command phase output by the adder and outputs the command value. A drive-signal generation unit, based on an output from the voltage generation unit generates drive signals corresponding to respective switching elements of an inverter, and outputs respective generated drive signals to the corresponding switching elements of the inverter, and generates a high-frequency AC voltage in the inverter.


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