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:
Oct. 14, 2025

Filed:

Aug. 26, 2022
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventors:

Tatsuhiko Maruyama, Kawasaki Kanagawa, JP;

Toyoaki Uo, Yokohama Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
H02H 3/22 (2013.01);
Abstract

According to the present embodiment, a power supply circuit includes a first transistor, a feedback voltage generation circuit, a first voltage generation circuit, and a protection circuit. The first transistor is connected between an input terminal and an output terminal. The feedback voltage generation circuit divides the output voltage to generate a feedback voltage. The first voltage generation circuit supplies a voltage to a first control terminal of the first transistor via a first node based on the feedback voltage and a reference voltage. The protection circuit outputs a voltage that makes the first transistor non-conducting or places the first transistor in a state where the first transistor has a predetermined high resistance value to the first control terminal, when the input voltage increases above a first threshold voltage within a predetermined time.


Find Patent Forward Citations

Maruyama, Tatsuhiko. (2025). Power supply circuit having protection circuit against electrostatic discharge stress and semiconductor device having the power supply circuit (U.S. Patent No. 12444922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12444922

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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