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:
Oct. 17, 2017
Filed:
May. 11, 2016
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Tetsu Nagano, Osaka, JP;
Tomoyoshi Morita, Hyogo, JP;
Shinichi Kuroshima, Osaka, JP;
Taishi Iwanaga, Shizuoka, JP;
Abstract
Disclosed herein is a motor driver including: a motor current phase detector configured to detect a motor current phase and output a result of the detection as motor current phase information; a motor phase detector configured to detect a motor phase and output a result of the detection as motor phase information; a phase correction value calculator configured to calculate a correction value based on a difference between the motor current phase information and the motor phase information and output a result of the calculation as compensation information; and a motor applied voltage calculator configured to calculate a motor applied voltage representing a voltage to be applied to the motor based on the compensation information and motor phase information received and output a result of the calculation as a phase-compensated motor applied voltage signal.