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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 11329473 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Jul. 19, 2020

Driver circuit having overcurrent protection function and control method of driver circuit having overcurrent protection function

Applicants:

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Aisin Aw Co., Ltd., Anjo, JP;

Inventors:

Hiroyuki Sugiyama, Anjo, JP;

Yuji Yamanaka, Kanagawa, JP;

Tatsufumi Kurokawa, Kanagawa, JP;

Assignees:

TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;

AISIN AW CO., LTD., Aichi-Ken, JP;

Attorney:

Holtz, Holtz & Volek PC

Primary Examiner:

Jared Fureman

Assistant Examiner:

Lucy M Thomas

Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/08 (2006.01); H03K 21/02 (2006.01); H03K 3/86 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/08 (2013.01); H02H 1/0007 (2013.01); H03K 3/86 (2013.01); H03K 21/02 (2013.01);
Abstract

According to one aspect of embodiments, a driver circuit having an overcurrent protection function includes a control signal generating circuit that outputs a Pulse Width Modulation (PWM) control signal for controlling turning ON and OFF of the output transistor that supplies output current to a load; and a control circuit that generates a signal indicating an overcurrent state when a count value of an overcurrent detecting signal exceeds a predetermined number, which indicates that a value of an output current of the output transistor within the predetermined time interval exceeds a predetermined threshold value.

Find Patent Forward Citations

Sugiyama, Hiroyuki. (2022). Driver circuit having overcurrent protection function and control method of driver circuit having overcurrent protection function (U.S. Patent No. 11329473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11329473

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

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