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Title:
APPARATUS AND METHOD FOR CONTROLLING STEPPING MOTOR
Document Type and Number:
Japanese Patent JP2005039874
Kind Code:
A
Abstract:

To provide an apparatus and a method for controlling a stepping motor which stably operates even in a low temperature environment without using an expensive stepping motor having a high torque in the stepping motor.

The apparatus 10 for controlling the stepping motor 1 includes the stepping motor 1 connected to a gear unit; a temperature sensor 12 for measuring an environmental temperature; and a preheating control means 14 for supplying exciting current which does not change flowing current direction to the stepping motor so as not to rotate the stepping motor, when a predetermined temperature is held as a threshold value and the environmental temperature measured by the temperature sensor is lower than the threshold value.


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Inventors:
KAWAKAMI YASUHIRO
Application Number:
JP2003197152A
Publication Date:
February 10, 2005
Filing Date:
July 15, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N1/00; H02P8/38; H04N1/04; (IPC1-7): H02P8/38; H04N1/04
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito



 
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