| 摘要 |
<p>A speed setting controller for a DC motor is provided. An inductor (La, Lb, Lc) is connected in series between a switching tube (T1, T3, T5) of the speed setting controller and the DC motor. When a winding of the DC motor is powered on to generate a torque, the inductor stores the electric power. When the winding of the DC motor is powered off, the inductor discharges to power on the winding of the DC motor, thus the torque is generated continuously by the winding of the DC motor. Thereby, the torque of the DC motor is increased without prolonging the power-on time of the DC motor. The problem that the power loss of the power source is increased is solved, when the torque of the DC motor is increased.</p> |
