| 摘要 |
PURPOSE:To maintain the constant-velocity rotation well and maintain the motor efficiency well even in the case that the torque of the motor changes. CONSTITUTION:In the constant-velocity rotation control system for a motor, it is provided with a position detecting means 13, which detects the rotational position of the motor and generates a position detection signal, a rotation time information measuring means 14, which measures the motor rotation time information from the position detection signal, a current quantity determining means 15, which the quantity of a motor driving current to be supplied to a driving coil 12 based on the rotation time information and the target rotation information of the motor, an electric angle determining means 16, which determines the electric angle of the motor driving current based on the quantity of current, and a motor driving current supply means 17, which supplies, having the electric angle to the position that the position detecting means 13 having detected, the motor driving current of the quantity of current to the corresponding driving coil 12. |
