Title:
ROTATION SPEED CONTROL DEVICE, PROJECTOR AND ROTATION SPEED CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2013/150606
Kind Code:
A1
Abstract:
Provided is a rotation speed control device that is capable of reducing problems due to fluctuations of a drive voltage used for driving a rotary body. A drive voltage output unit (3) outputs a drive voltage in accordance with a setting value that has been set. A rotary body (1A - 1C) is driven to rotate at a rotation speed in accordance with the drive voltage. A storage unit (6) stores characteristic data that represent the correspondence between the drive voltage and the rotation speed. A control unit (7) detects, as a reference voltage, a drive voltage that is output when the predetermined value is set to the drive voltage output unit (3), and adjusts the setting value to be set to the drive voltage output unit on the basis of the predetermined value, reference voltage, and characteristic data.
Inventors:
KATOU TAKESHI (JP)
Application Number:
PCT/JP2012/059057
Publication Date:
October 10, 2013
Filing Date:
April 03, 2012
Export Citation:
Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
KATOU TAKESHI (JP)
KATOU TAKESHI (JP)
International Classes:
H02P29/00
Foreign References:
| JP2006154460A | 2006-06-15 | |||
| JPH0823275A | 1996-01-23 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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