| 摘要 |
<p>The device has coil elements are arranged partially in a star-connection with a U-winding, a V-winding, a W-winding and has a neutral point. The U-winding, the V-winding, the W-winding and neutral point are connected to a computer unit. The computer unit controls the direct current (DC) motor by supplying two coil elements which are arranged in a star circuit in a fixed time range. The voltage change-signals are measured in the coil elements, which is generated depending on position in the magnetic elements. The detected signals are analyzed and the rotor position of DC-motor is calculated.</p> |
