| 摘要 |
PURPOSE:To obtain stable action using a simple constitution by taking out a control power supply from among a main power source, a bridge rectifier and a stepdown resistance to rectify commercial power in bridge and to supply the voltage obtained by the stepdown resistance to stator windings. CONSTITUTION:To a commercial power source 2 a bridge rectifier 3 is connected, whose output terminal is connected to windings 4U, 4V and 4W of a stator 11 through a stepdown resistance R1 and a diode D7. The positive output terminal of the rectifier 3 is connected to a control power source section 6 from the point of contact of the resistance R1 through a resistance R8'. |
