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. 03, 2022

Filed:

May. 16, 2019
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Takaaki Takahara, Tokyo, JP;

Hiroto Mizutani, Tokyo, JP;

Hajime Toyoda, Tokyo, JP;

Hiroyasu Iwabuki, Tokyo, JP;

Yasunori Otsuka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H02M 1/088 (2006.01); H02M 7/537 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 1/088 (2013.01); H02M 7/537 (2013.01);
Abstract

A DC capacitor and a leg are connected in parallel to a high-voltage-side power line and a low-voltage-side power line. The leg includes a plurality of semiconductor switching elements connected in series between the power lines with an output end, connected to a load, between the plurality of semiconductor switching elements. An attenuator for attenuating a resonance is connected to a main circuit loop formed of the DC capacitor, the high-voltage-side power line, the low-voltage-side power line, a semiconductor switching element in ON state, and a drain-source parasitic capacitance of a semiconductor switching element in OFF state.


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