| 摘要 |
<p>This invention relates to motor speed control circuits employing capacitors. Windings (L1 and L2) of a motor are connected in parallel to a neutral phase of an alternating current source. Each coil (L1 and L2) may be connected to live phase (L) of the source whereby the rotation direction of the motor may be altered. Three socket terminals are connected to each winding (L1 and L2). A capacitor pack has three pins with capacitors (C1 and C2) connected between a common pin and the two remaining pins. The pins of the capacitor pack can be inserted into the sockets in three different ways whereby either capacitor (C1) capacitor (C2), or capacitor (C1 and C2) in parallel can be connected across the windings (L1, L2) to vary thereby speed and performance characteristics of the motor.</p> |
