| 摘要 |
For the present invention, under various running speeds statuses, the voltage supplied to the DC brushless motor is relatively increased or decreased on the basis of the internal setting of the motor drive control device with the increased or decreased load current, to prevent the shortcoming of too much change of the input impedance caused by the inductive reactance of the winding accordingly changed when the speed of the DC brushless motor is changed with the change of the load, specifically, to prevent the shortcoming of unable to produce required torque resulting from the increased inductive reactance of the winding caused by increasing the rotational speed which makes the current value become too low when input by the original working voltage.
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