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:
Sep. 03, 2024

Filed:

Mar. 08, 2023
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventors:

Yuichi Sawahara, Kanagawa, JP;

Hideaki Majima, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/081 (2006.01); H03K 17/0812 (2006.01); H03K 17/687 (2006.01); H03K 17/74 (2006.01);
U.S. Cl.
CPC ...
H03K 17/08122 (2013.01); H03K 17/6871 (2013.01); H03K 17/74 (2013.01);
Abstract

According to one embodiment, an inrush current suppression circuit includes a normally-on transistor, a normally-off transistor connected in series with the normally-on transistor, a first drive circuit that drives the normally-on transistor, a second drive circuit that drives the normally-off transistor, a diode connected between an output of the first drive circuit and an output terminal of the normally-off transistor, a first power source smoothing circuit that performs smoothing of a source current to be supplied to the first drive circuit and the second drive circuit, and a switch circuit that switches connection/disconnection of a current path passing through the first power source smoothing circuit.


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