Title:
ROTATIONAL SPEED CONTROLLER OF MOTOR
Document Type and Number:
Japanese Patent JP3683071
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To correct and remove the components of rotation cycles, by minimizing the increase of the processing of a motor controller.
SOLUTION: A phase comparator 1 compares the detection signal from a rotational angle detection sensor 9 with the reference signal, and outputs a phase error signal, and a deviation detecting circuit 2 converts this phase error signal into a deviation signal proportionate to the angle, and a reading circuit 6 reads out the value to correct the components of the rotation cycles from the memory 5. Then, a subtracter 7 subtracts the value of the memory from the deviation signal, and a compensating circuit 3 performs the phase compensation for it, and it outputs a current command value to a motor driving circuit 4 so as to drive a motor 8.
Inventors:
Asahara Akinobu
Yoshio Fujikawa
Yoshio Fujikawa
Application Number:
JP14395097A
Publication Date:
August 17, 2005
Filing Date:
June 02, 1997
Export Citation:
Assignee:
ntn corporation
International Classes:
H02P29/00; (IPC1-7): H02P5/00
Domestic Patent References:
| JP4080297U | ||||
| JP6295500A | ||||
| JP1270784A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Hiroyuki Yoshida
Hidehiko Ito
Toshio Morita
Hiroyuki Yoshida
Hidehiko Ito
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