| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller, an original reading apparatus, and a motor control method that can prevent the deterioration of duty ratio due to chattering, when a motor is controlled at extremely low speed. <P>SOLUTION: This motor controller comprises a signal output means 125, which outputs interrupt signals according to the revolutions of a motor 50, a power addition control means 112, which performs the control to increase electric power supplied to the motor 50 from stand-by power with the lapse of time, a forward/reverse rotation determination means 123, which determines whether the motor 50 is rotating in an intended direction or in the reverse direction, and a power drop determination means 111, which instructs the power addition control means 112 to reduce the electric power supplied to the motor 50 to the stand-by power on the basis of the input of the interrupt signal when the motor 50 is determined to be rotating in the intended direction and allows the power addition control means 112 to continue the control of increasing the electric power supplied to the motor 50 even when the interrupt signals are input in the reverse rotation. <P>COPYRIGHT: (C)2008,JPO&INPIT |
