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:
Jan. 04, 2022

Filed:

Feb. 24, 2020
Applicant:

Fuji Electric Co., Ltd., Kanagawa, JP;

Inventors:

Qichen Wang, Hino, JP;

Ryuji Yamada, Hachioji, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/34 (2007.01); H02M 7/5387 (2007.01); H02M 7/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/34 (2013.01); H02M 7/003 (2013.01); H02M 7/53871 (2013.01); H02M 1/342 (2021.05);
Abstract

A snubber module is provided, which constitutes a snubber apparatus attachable to a terminal of a semiconductor module. The snubber module includes: a positive-side capacitor, a first diode and a negative-side capacitor sequentially connected between a positive-side snubber terminal and a negative-side snubber terminal, the positive-side snubber terminal connectable to a positive-side terminal of the semiconductor module, and the negative-side snubber terminal connectable to a negative-side terminal of the semiconductor module; a first coupling terminal directly or indirectly connected to one node of either a first node between the positive-side capacitor and the first diode or a second node between the negative-side capacitor and the first diode; and a housing accommodating the positive-side capacitor, the negative-side capacitor and the first diode, and having provided therein the positive-side snubber terminal, the negative-side snubber terminal and the first coupling terminal in a manner enabling external connection.


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