| 摘要 |
The device for connecting a starting capacitor 5 to a single-phase motor, according to the invention, comprises at least one main winding 1 and one auxiliary winding 4, the auxiliary winding 4 being mounted in series with the starting capacitor 5 in an auxiliary circuit mounted in parallel with the main winding 1. It is characterised in that it includes means 13, 14 for tapping a main voltage across the terminals of the main winding 1, means 15, 14 of tapping an auxiliary voltage across the terminals of the auxiliary winding 4, control means 12 connected to the tapping means for determining an instant at which the main voltage V and the auxiliary voltage v are in a predetermined ratio k, and switching means 6 in the auxiliary circuit, in series with the starting capacitor 5 and the auxiliary winding 4 and connected to the control means 12 in order to open or close the auxiliary circuit in response to signals from the control means 12. <IMAGE>
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