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 9595898 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 14, 2017

Filed:

Feb. 26, 2016
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Inventors:

Kouji Inoue, Fujisawa Kanagawa, JP;

Tooru Asakawa, Yokohama Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2016.01); H02P 6/18 (2016.01); H03K 3/037 (2006.01); H03K 5/1536 (2006.01); H03K 5/24 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H02P 6/18 (2013.01); H03K 3/037 (2013.01); H03K 5/1536 (2013.01); H03K 5/24 (2013.01); H03K 17/6874 (2013.01);
Abstract

According to one embodiment, a device for controlling motor driving which includes a first comparator, a second comparator, a zero level detecting portion, and a data determining portion is provided. The first comparator compares a voltage induced in a coil with a first threshold value. The second comparator compares the induced voltage with a second threshold value which is different from the first threshold value. The zero level detecting portion detects that a current flowing in an H-bridge circuit is zero. The data determining portion determines a value of digital data to be inputted to a DA convertor which generates a reference voltage for use in controlling a driving current of the motor based on an output of the first comparator, an output of the second comparator and an output of the zero level detecting portion.


Find Patent Forward Citations

Inoue, Kouji. (2017). Device for controlling motor driving (U.S. Patent No. 9595898). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9595898

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