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:
Jul. 03, 2018

Filed:

Jan. 25, 2017
Applicant:

Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;

Inventor:

Kenji Murata, Aichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 5/00 (2006.01); H02H 7/08 (2006.01); H02P 1/04 (2006.01); H02P 3/00 (2006.01); H02P 23/00 (2016.01); H02P 29/024 (2016.01); H02P 7/291 (2016.01);
U.S. Cl.
CPC ...
H02P 23/0077 (2013.01); H02P 7/291 (2016.02); H02P 29/027 (2013.01);
Abstract

A motor driving apparatus includes a driving circuit that drives a motor based on a driving instruction signal at a first state of the first state and a second state which are binarized, a current feedback circuit including a latch circuit, and a controller that outputs the driving instruction signal and a current command signal. The latch circuit latches a third state of the third state and a fourth state which are binarized if a motor current value exceeds a current command value. When the driving instruction signal becomes the second state, the latch circuit releases the latching of the third state and outputs a signal of the fourth state. The controller outputs the driving instruction signal of the second state along with the current command signal so as to release the latching of the latch circuit when outputting the current command signal with the current command value changed.


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Murata, Kenji. (2018). Motor driving apparatus (U.S. Patent No. 10014809). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10014809

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