Control device of stepping motor, electronic apparatus, recording apparatus, robot, control method of stepping motor, and control program of stepping motor
AssigneeSeiko Epson Corporation
InventorAkitoshi MAEDA
Life of this patent
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Abstract
A control device includes a position generating section that generates a position signal including position information of a rotor, an electrical angle detection section that outputs a detection electrical angle signal including electrical angle information that is obtained by multiplying a coefficient by the position signal, and a driving section that outputs an excitation current to a coil based on an amplitude signal including amplitude information of the excitation current and the detection electrical angle signal.
Claims19
A control device of a stepping motor which allows a rotor to be rotated by a magnetic flux generated by supplying an excitation current to a coil corresponding to each of a plurality of phases, the device comprising:
- a position generating section that generates a position signal including position information of the rotor that is detected;
- an electrical angle detection section that outputs a detection signal of the electrical angle including electrical angle information that is obtained by multiplying a coefficient by the position signal;
- and
- a driving section that outputs the excitation current to the coil based on an amplitude signal including amplitude information of the excitation current and the detection signal of the electrical angle.
A control method of a stepping motor for controlling a stepping motor which allows a rotor to be rotated by a magnetic flux generated by supplying an excitation current to a coil corresponding to each of a plurality of phases, the method comprising:
- acquiring a position signal indicating a position of the rotor;
- generating a detection signal of an electrical angle including information of the electrical angle obtained by multiplying a coefficient by the position signal;
- and
- outputting the excitation current based on an amplitude signal indicating amplitude of a current and the detection signal of the electrical angle.
A control program of a stepping motor comprising:
- generating a detection signal of an electrical angle including information of the electrical angle obtained by multiplying a coefficient by a position signal indicating a position of a rotor;
- and
- generating a command signal of the electrical angle indicating the electrical angle of an excitation current based on an amplitude signal indicating amplitude of a current and the detection signal of the electrical angle.
Dependencies are inferred from the claim text.