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:
Mar. 17, 2009
Filed:
Dec. 27, 2006
Applicants:
Kazuhiko Asada, Osaka, JP;
Mitsuyuki Kiuchi, Nara, JP;
Hisachi Hagiwara, Osaka, JP;
Hiroyuki Saito, Osaka, JP;
Inventors:
Kazuhiko Asada, Osaka, JP;
Mitsuyuki Kiuchi, Nara, JP;
Hisachi Hagiwara, Osaka, JP;
Hiroyuki Saito, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/08 (2006.01); H02P 5/74 (2006.01); D06F 58/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
With the use of three inverter circuits controlled by a single processor, the controller of the motor-driving apparatus provides a rotation drum-driving motor, a compressor-driving motor and a blow fan-driving motor with a simultaneous sinusoidal-wave control. The configuration above offers stable sinusoidal-wave drive, reducing vibration noise of the rotation drum, the compressor and the blow fan.