| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To minimize pulsation of rotating speed of a motor in a low revolution work. <P>SOLUTION: The power tool includes the motor 11 as a driving source, and a control circuit 3 for controlling the drive of the motor and performing feedback control of the rotating speed of the motor. The control circuit 3 changes a control cycle of the rotating speed of the motor according to a setting concerning the motor rotation. A fluctuation width of the rotating speed is changed by changing the control cycle of the feedback control. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
