| 摘要 |
A permanent magnet is installed on a shaft. Two electromagnets are installed outside, and the other two electromagnets are installed in the opposite side, but poles of the electromagnets are differentiated. A tip of a wire of each of the electromagnets is connected to the cathode of a diode, and the other tip of the wire is connected to the anode of the diode. A current flows in one of the electromagnets, and a current flows in one of the electromagnets in the opposite side, but poles of the electromagnets facing the permanent magnet are differentiated. When the rotating permanent magnet reaches the electromagnets, a current flows in the other two electromagnets to keep the permanent magnet rotating. When the current flows in the electromagnets, a DC power source is repeatedly connected and disconnected with the electromagnets. When the DC power source is connected to each of the electromagnets, the positive pole of the DC power source are connected to the cathode of the diode, and the negative pole of the DC power source is connected to the anode of the diode. Therefore, disclosed is the DC motor rotating a shaft with the permanent magnet without hardly using the DC power, inputted to the motor. |
