Title:
モータ駆動装置及びモータ駆動装置の駆動方法
Document Type and Number:
Japanese Patent JP6580859
Kind Code:
B2
Abstract:
A motor driving device and driving method of the same used to surely suppress the influence of counter electromotive force is provided. The motor driving device 100 includes an auto-decay portion 141. The auto-decay portion 141 controls a path of a electric current flow in a motor coil when supplying the electric current and when decaying the electric current. The influence of counter electromotive force generated in a stepping motor 200 can be suppressed by the auto-decay portion 141 configured to control so that a ratio or an decay time of a slow decay mode and a fast decay mode of previous cycle is different from a ratio or an decay time of the slow decay mode and the fast decay mode of current cycle.
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Inventors:
Hiroki Hashimoto
Ryoichi Inoue
Ryoichi Inoue
Application Number:
JP2015089358A
Publication Date:
September 25, 2019
Filing Date:
April 24, 2015
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H02P8/12; H02P7/06
Domestic Patent References:
| JP2013162568A |
Attorney, Agent or Firm:
Sano patent office