Stepping motor drive device
AssigneeToshiba Tec Kabushiki Kaisha
InventorHiroshi Tsuchimoto
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Abstract
A stepping motor drive device which drives a stepping motor comprises a generation module configured to generate a current value waveform for rotating the stepping motor at a unit of a predetermined step angle; a drive module configured to excite the stepping motor using the current value waveform to rotate the stepping motor; and a control module configured to decrease a current value at a balance angle at which the stepping motor is stabilized at the time of non-excitation in the current value waveform of one rotation generated by the generation module.
Claims16
A stepping motor drive device which drives a stepping motor, comprising:
- a generation module configured to generate a current value waveform for rotating the stepping motor at a unit of a predetermined step angle;
- a drive module configured to excite the stepping motor using the current value waveform to rotate the stepping motor;
- and
- a control module configured to decrease a current value at a balance angle at which the stepping motor is stabilized at the time of non-excitation in the current value waveform of one rotation generated by the generation module.
A stepping motor method for driving a stepping motor, comprising:
- generating a current value waveform for rotating the stepping motor at a unit of a predetermined step angle;
- exciting the stepping motor using the current value waveform to rotate the stepping motor;
- and
- decreasing the current value at a balance angle at which the stepping motor is stabilized at the time of non-excitation in the current value waveform of one rotation.
Dependencies are inferred from the claim text.