Title:
DRIVE CONTROL
Document Type and Number:
WIPO Patent Application WO/2002/087066
Kind Code:
A1
Abstract:
A drive control apparatus for controlling an electric rotation drive block for moving a drive body. The apparatus comprises a reference comparison signal generation circuit, a detection circuit for detecting speed of the drive block and outputting it as a detection signal, a speed instruction circuit of the drive block, a rotation control circuit of the drive block, and a phase comparison circuit for comparing the phase of the reference comparison signal with the phase of the detection signal and outputting the comparison result to the rotation control circuit. The rotation control circuit controls the speed of the drive block so as to be matched with the speed instruction in accordance with the phase comparison result.
Inventors:
TAKEUCHI KESATOSHI
Application Number:
PCT/JP2002/003998
Publication Date:
October 31, 2002
Filing Date:
April 22, 2002
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
B60L11/18; B60L15/20; B62D11/04; B62D11/18; H02P29/00; (IPC1-7): H02P5/00
Domestic Patent References:
| WO1999057802A2 | 1999-11-11 | |||
| WO2000046063A1 | 2000-08-10 |
Foreign References:
| US6172473B1 | 2001-01-09 | |||
| JPH03222138A | 1991-10-01 | |||
| JP2001047887A | 2001-02-20 | |||
| JP2000261914A | 2000-09-22 |
Attorney, Agent or Firm:
Inaba, Yoshiyuki (23rd Floor Roppongi Hills Mori Tower 6-10-1
Roppongi Minato-ku, Tokyo, JP)
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