Invention Application
US20130229139A1 MOTOR CONTROL DEVICE AND OUT-OF-STEP DETECTING METHOD OF STEPPING MOTOR 有权
电动机控制装置和步进电机的不合格检测方法

  • Patent Title: MOTOR CONTROL DEVICE AND OUT-OF-STEP DETECTING METHOD OF STEPPING MOTOR
  • Patent Title (中): 电动机控制装置和步进电机的不合格检测方法
  • Application No.: US13771500
    Application Date: 2013-02-20
  • Publication No.: US20130229139A1
    Publication Date: 2013-09-05
  • Inventor: Kazuo TAKADATakayuki MATSUIScott JACOBS
  • Applicant: MINEBEA CO., LTD.
  • Applicant Address: JP KITASAKU-GUN
  • Assignee: MINEBEA CO., LTD.
  • Current Assignee: MINEBEA CO., LTD.
  • Current Assignee Address: JP KITASAKU-GUN
  • Priority: JP2012-047001 20120302
  • Main IPC: H02P8/38
  • IPC: H02P8/38
MOTOR CONTROL DEVICE AND OUT-OF-STEP DETECTING METHOD OF STEPPING MOTOR
Abstract:
There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.
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