| 摘要 |
PROBLEM TO BE SOLVED: To efficiently control rotational operation of a rotary body by performing control operation of a drum motor with timing which is not synchronized with capture operation. SOLUTION: When a phase control mode of a drum is detected by a mode selection circuit 111, a control circuit 110 reads a capture value captured in a capture circuit 106 according to read-out timing outputted by a timer circuit 107. Successively, the control circuit 110 calculates control quantity of a drum motor 101 using a read capture value, and outputs it to a drum motor control circuit 112. The drum motor control circuit 112 changes control voltage of the drum motor 101 based on control quantity calculated by the control circuit 110. Therefore, control operation of the drum motor can be performed with timing previously set independently of capture operation by the capture circuit 106, and control operation of the motor can be always performed with the prescribed timing. |
