PURPOSE: To reduce the vibration and noise of a brushless motor when the motor is driven.
CONSTITUTION: A motor driving current controlling and processing section 8 and PWM processing section 9 control a motor driving circuit 1 by preparing the energizing and deenergizing pattern of a motor driving signal. In addition, a pattern learning and processing section 12 learns the energizing and pattern of the motor driving signal immediately before stopping a brushless motor and a pattern computing and processing section 13 prepares the first energizing and deenergizing pattern based on the pattern learnt by the section 12 at the time of restarting the motor. Therefore, the vibration and noise of the motor can be reduced, because the driving current of the motor can be made coincident with a commanded value in an early stage.
| JPH04152978 | CONTROLLER OF WASHING MACHINE |
| JP5515753 | Drum type washing machine |
MATSUO KAZUYOSHI
TAWARA KAZUO
YASUJIMA TOSHIYUKI
FUTAMI MOTOO
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