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.:
Date of Patent:
Jun. 06, 2017
Filed:
Feb. 18, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Kenji Ogawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A motor control circuit controls an operation of a motor based on an input voltage and a control parameter. A voltage-abnormality detection unit detects abnormality of the input voltage by comparing the input voltage with an allowable voltage range. A memory stores therein a plurality of allowable voltage range candidates made to correspond to a plurality of reference voltages and a plurality of control parameter candidates made to correspond to the plurality of reference voltages. A reference-voltage acquisition unit acquires reference voltage information specifying one of the plurality of reference voltages. A selector selects one of the plurality of allowable voltage range candidates from the plurality of allowable voltage range candidates, corresponding to the one reference voltage, as the allowable voltage range and one of the plurality of control parameter candidates from the plurality of control parameter candidates, corresponding to the one reference voltage, as the control parameter based on the reference voltage information.