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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 10365679 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Aug. 29, 2017

Regenerative current detection circuit, charge current detection circuit, and motor current detection system

Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Daisuke Arai, Kawasaki Kanagawa, JP;

Tooru Asakawa, Kawasaki Kanagawa, JP;

Masahiro Shimozono, Kawasaki Kanagawa, JP;

Katsumi Shiokawa, Kawasaki Kanagawa, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;

Attorney:

Kim & Stewart LLP

Primary Examiner:

Roy K Potter

Int. Cl.
CPC ...
H02P 7/00 (2016.01); G05F 3/26 (2006.01); G01R 19/145 (2006.01); G01R 19/00 (2006.01); G01R 31/40 (2014.01); H02M 3/156 (2006.01); H03F 1/34 (2006.01); H03F 1/08 (2006.01); H03F 3/217 (2006.01); H03K 17/687 (2006.01); H03K 17/082 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G05F 3/26 (2013.01); G01R 19/0038 (2013.01); G01R 19/145 (2013.01); G01R 31/40 (2013.01); H02M 3/156 (2013.01); H03F 1/086 (2013.01); H03F 1/342 (2013.01); H03F 3/217 (2013.01); H03F 3/2173 (2013.01); H03K 17/0822 (2013.01); H03K 17/6871 (2013.01); H02M 2001/0009 (2013.01); H03F 2200/351 (2013.01); H03F 2200/462 (2013.01); H03F 2200/471 (2013.01); H03F 2200/474 (2013.01); H03F 2200/78 (2013.01); H03K 2217/0027 (2013.01); H03K 2217/0045 (2013.01);
Abstract

A regenerative current detection circuit includes a first power MOS transistor that is configured as a current mirror to a second power MOS transistor connected to drive a motor winding, a first feedback amplifier that compares a first regenerative current that flows in the first power MOS transistor with a second regenerative current that flows in the second power MOS transistor and outputs a comparison result, the first regenerative current being obtained by multiplying the second regenerative current by a current mirror ratio, and a current detection circuit that outputs a detection current based on the comparison result.

Find Patent Forward Citations

Arai, Daisuke. (2019). Regenerative current detection circuit, charge current detection circuit, and motor current detection system (U.S. Patent No. 10365679). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10365679

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

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