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:
Jul. 17, 2018
Filed:
Mar. 04, 2015
Nidec Servo Corporation, Kiryu-shi, Gunma, JP;
Masatomo Ishikawa, Kiryu, JP;
NIDEC SERVO CORPORATION, Gunma, JP;
Abstract
A motor apparatus includes: an inverter arranged to drive a motor with a voltage outputted from a driving element; a rectifier circuit arranged to rectify alternating-current power to generate direct-current power to be applied to the driving element; a measuring section arranged to measure a voltage of the direct-current power; and a control circuit arranged to control the inverter in accordance with a result of a measurement by the measuring section; wherein the control circuit is arranged to vary an amplitude value of a drive signal to be applied to a base or gate of the driving element in a complementary manner in relation to a fluctuation in the voltage of the direct-current power.