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 9190924 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 17, 2015

Filed:

Aug. 02, 2011
Applicant:

Kazuhito Nakamura, Kobe, JP;

Inventor:

Kazuhito Nakamura, Kobe, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/34 (2007.01); H02M 5/458 (2006.01); H02M 5/297 (2006.01); H02M 5/22 (2006.01);
U.S. Cl.
CPC ...
H02M 5/458 (2013.01); H02M 5/297 (2013.01); H02M 5/225 (2013.01); H02M 2001/348 (2013.01);
Abstract

An indirect matrix converter includes a converter () connected through a positive polarity bus () and a negative polarity bus () to an inverter (). A clamp diode () has its anode connected to the positive polarity bus () and has its cathode connected to one end of a capacitor (). The other end of the capacitor () is connected to the anode of a clamp diode () of which cathode is connected to the negative polarity bus (). Upper discharge preventing snubber circuits () are provided for switch devices (through) of the inverter (), and lower discharge preventing snubber circuits () are provided for switch devices (through) of the inverter (). Discharge resistors () of the upper discharge preventing snubber circuits () are connected to the anode of the diode (), and discharge resistors () of the lower discharge preventing snubber circuits () are connected to the cathode of the diode ().


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Nakamura, Kazuhito. (2015). Indirect matrix converter (U.S. Patent No. 9190924). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9190924

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