Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MOTOR CONTROLLER, AND MOTOR CONTROL METHOD
Document Type and Number:
Japanese Patent JP2008206273
Kind Code:
A
Abstract:

To restrain the state of a driver from not shifting, being caused by the generation of torque ripple.

The motor controller includes (a) a sensor which detects whether a driven body, which shifts from the first state to the second state, being driven by a motor which has a brush and a commutator, has shifted to the second state or not, and (b) a control unit which executes the shift control of shifting the above driven body to the second state, by supplying the motor with a drive current and resupplies the above motor with the above current, in case that the above sensor detects that the above driven body did not shift to the second state even if the above shift control was executed.


Inventors:
KOYAMA KAORU
IGARASHI HITOSHI
Application Number:
JP2007038368A
Publication Date:
September 04, 2008
Filing Date:
February 19, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SEIKO EPSON CORP
International Classes:
H02P7/06
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation