Title:
モータ駆動回路、および、モータ駆動システム
Document Type and Number:
Japanese Patent JP5784474
Kind Code:
B2
Abstract:
The characteristic is defined by a characteristic line that connects a lowest point at which the duty of the PWM signal is a minimum value and the rotation command signal is a minimum rotation command signal, and a highest point at which the duty of the PWM signal is a maximum value and the rotation command signal is a maximum rotation command signal. The duty calculating circuit updates the characteristic so that the characteristic line passes through a first control point at which the duty of the PWM signal is a value set based on the first setting signal and the rotation command signal is a first rotation command signal between the minimum rotation command signal and the maximum rotation command signal.
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Inventors:
Toshiaki Ogushi
Takehiro Hara
Takehiro Hara
Application Number:
JP2011268064A
Publication Date:
September 24, 2015
Filing Date:
December 07, 2011
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02P29/00
Domestic Patent References:
| JP2006325389A | ||||
| JP2009296839A | ||||
| JP2005171907A |
Attorney, Agent or Firm:
Hirohito Katsunuma
Yasukazu Sato
Yasushi Kawasaki
Takeshi Sekine
Akaoka Akira
Tomoya Deguchi
Yasukazu Sato
Yasushi Kawasaki
Takeshi Sekine
Akaoka Akira
Tomoya Deguchi