| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor driving circuit, a motor driving apparatus having the same, and a motor driving method.SOLUTION: The motor driving circuit includes: a duty ratio detection unit that detects a duty ratio of an input pulse-width-modulation signal applied to control the speed of a motor; a speed detection unit that detects the speed of the motor; and a driving control unit that detects a targeted speed corresponding to the duty ratio of the input pulse-width-modulation signal by using relationship data between the duty ratio of the input pulse-width-modulation signal and the targeted speed that are previously stored and controls driving of the motor such that the speed of the motor is equal to the targeted speed. By this motor driving circuit, the speed of the motor can be accurately controlled. |
