Title:
MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP2012203116
Kind Code:
A
Abstract:
To provide a motor controller that enables devices to be driven according to a wide range of power source states or load states.
In a motor controller that drives at least two motors in parallel, duty control is performed that changes, with time, the duty ratio of at least one of the motors so that the upper limit of the total value of driving currents is fixed so as not to exceed a predetermined value.
Inventors:
MIZUI KENGO
ICHIKAWA YOSHIKI
ICHIKAWA YOSHIKI
Application Number:
JP2011066237A
Publication Date:
October 22, 2012
Filing Date:
March 24, 2011
Export Citation:
Assignee:
NIKON CORP
International Classes:
G03B17/00; G03B17/02; H02P5/68; H04N5/225
Attorney, Agent or Firm:
Fuyuki Nagai
Takao Watanabe
Takao Watanabe
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