Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
STEPPING MOTOR DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/051756
Kind Code:
A1
Abstract:
Provided is a stepping motor driving device that reduces the occurrence of loss of synchronism when a stepping motor is initially operated. This stepping motor driving device 10 is equipped with a triangular wave generation unit 30, a sine wave generation unit 40, a drive current generation unit 80, a control unit 20, and a switch unit 70. The control unit 20 sets a switch-switching signal 300 to an enabled state when it is determined that the sine wave is in a stable state, and sets the switch-switching signal 300 to a disabled state when it is not determined that the sine wave is in a stable state. The switch unit 70 enables inputting of a sine wave to the drive current generation unit 80 when the switch-switching signal 300 is enabled, and does not enable inputting of a sine wave to the drive current generation unit 80 when the switch-switching signal 300 is disabled.

Inventors:
YAMAKAWA,Yasuhiro
HADA,Makoto
Application Number:
JP2016/077162
Publication Date:
March 30, 2017
Filing Date:
September 14, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON SEIKI CO.,LTD. (2-34, Higashi-zaoh 2-chomeNagaoka-sh, Niigata 80, 〒9408580, JP)
International Classes:
H02P8/04
Foreign References:
JPH09172797A1997-06-30
JPH09103096A1997-04-15
JP2008181000A2008-08-07
JP2009095127A2009-04-30
Download PDF: