| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controlling device and a motor controlling method.SOLUTION: A motor controlling device comprises: an open loop driving unit performing open loop controlling using a pulse width modulation signal; a closed loop driving unit performing feedback controlling using a current speed of a motor; and a driving controlling unit calculating a duty ratio for the pulse width modulation signal and comparing the calculated duty ratio with a preset reference duty to thereby control any one of the open loop driving unit and the closed loop driving unit to operate. |
