| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive control device for a pulse-width control motor that can stably drive the pulse-width control motor and also can reduce current consumption.SOLUTION: A drive control device 30 comprises a drive control circuit 35 for controlling drive of motors 70 and 80 and a rotation detection circuit 36 for detecting whether or not rotors 701 and 801 rotate. The drive control circuit 35 comprises a drive pulse output section 351 for outputting a drive pulse constituted of a preset number of interdigital pulses to the motors 70 and 80 and an auxiliary pulse output section 353 for outputting an auxiliary pulse to the motors 70 and 80 when the motors 70 and 80 fail to rotate. The drive pulse output section 351 comprises a first drive control mode that increases a duty of the drive pulse output subsequent to the auxiliary pulse at the time of non-rotation of the rotors 701 and 801 by a first set value and decreases the duty of the drive pulse by a second set value greater than the first set value when the rotors 701 and 801 continuously rotate a set number of times. |
