초록 ▼

In a motor control apparatus for controlling a rotational position of a motor, a rotation detector detects the rotational position of the motor, and outputs first and second detection signals having phases corresponding to a detected rotational position of the motor and different from each other, an

In a motor control apparatus for controlling a rotational position of a motor, a rotation detector detects the rotational position of the motor, and outputs first and second detection signals having phases corresponding to a detected rotational position of the motor and different from each other, and a position detecting circuit detects a rotational position in a unit which is less than one cycle of the first and second detection signals based on the first and second detection signals, and outputs a rotational position signal representing a detected rotational position. Further, a motor controller compares the rotational position signal with a reference position signal representing a reference rotational position of the motor to obtain a position error, and controls the rotational position of the motor so that the position error is minimized.

대표청구항 ▼

[ What is claimed is:] [1.] A motor control apparatus for controlling a rotational position and a rotation speed of a motor, comprising:rotation detecting means for detecting the rotational position of said motor, and outputting first and second detection signals having phases corresponding to a det

[ What is claimed is:] [1.] A motor control apparatus for controlling a rotational position and a rotation speed of a motor, comprising:rotation detecting means for detecting the rotational position of said motor, and outputting first and second detection signals having phases corresponding to a detected rotational position of said motor and being different from each other;position detecting means for detecting a rotational position of said motor in a unit which is less than one cycle of the first and second detection signals based on the first and second detection signals outputted from said rotation detecting means, and outputting a rotational position signal representing a detected rotational position;frequency signal generating means for generating and outputting a rotation speed signal corresponding to the rotation speed of said motor based on either one of the first and second detection signals outputted from said rotation detecting means;position controlling means for detecting a position error between a reference position signal representing a reference position of said motor and the rotational position signal outputted from said position detecting means, and generating and outputting a position control signal representing a detected position error;speed controlling means for detecting a speed error between a reference speed signal representing a reference speed of said motor and the rotation speed signal outputted from said frequency signal generating means, and generating and outputting a speed control signal representing a detected speed error;mixing means for adding the position control signal outputted from said position controlling means and the speed control signal outputted from said speed controlling means, and outputting a sum signal representing a sum of the addition; andmotor controlling means for controlling the rotational position and the rotation speed of said motor based on the sum signal outputted from said mixing means so that the position error and the speed error are minimized.