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:
Jan. 17, 2012
Filed:
Aug. 29, 2007
Morimitsu Sekimoto, Kusatsu, JP;
Hitoshi Haga, Sendai, JP;
Abdallah Mechi, Kusatsu, JP;
Reiji Kawashima, Kusatsu, JP;
Kenichi Sakakibara, Kusatsu, JP;
Toshiyuki Maeda, Kusatsu, JP;
Morimitsu Sekimoto, Kusatsu, JP;
Hitoshi Haga, Sendai, JP;
Abdallah Mechi, Kusatsu, JP;
Reiji Kawashima, Kusatsu, JP;
Kenichi Sakakibara, Kusatsu, JP;
Toshiyuki Maeda, Kusatsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A motor control unit () includes: a power converter () having a rectifier circuit () which rectifies an AC voltage from an AC power supply (), a capacitor circuit () which receives an output of the rectifier circuit () and outputs a rectified voltage having pulses from both ends of a capacitor () and an inverter circuit () which receives the rectified voltage and outputs an AC voltage to the motor (); and a motor controller () controlling the motor () by controlling the inverter circuit (). The motor controller () performs torque control to vary an output toque of the motor () in response to variation in load torque of the motor ().