| 摘要 |
<p>The appliance consists of inductive load(s) comprising a single phase motor with three winding sections. The lead is connected between the phases of the electric supply net by commutating element(s) having relatively low frequency, and element(s) having relatively high frequency w.r.t. the appliances operating cycles. The relatively high frequency commutating element (10) is connected to the phases (8,9) on one side alternately through the second and third winding sections (6,7), and on the other side through the first winding section (5). - Consequently, at least part of the motor winding is used, w.r.t. each phase of the power supply, as a rejection impedance for high-frequency interferences generated by the commutating control element. This allows the shielding requirements of the appliance to be considerably reduced as the high-frequency interferences generated are simultaneously attenuated and equilibrated.</p> |
