| 摘要 |
<p>The invention relates to a dual-phase power supply device (SD1; SD2) for supplying from an alternating single-phase mains a motor (MOT2) including a first winding (W1) and a second winding (W2) in series between a neutral conductor (AC-H) and a live conductor (AC-N), the device including short-circuiting means for alternatively short-circuiting the first and second windings, characterised in that the short-circuiting means define two meshes (M1, M2; M3, M4) with each winding, each mesh including a diode (D1, D2, D3, D4; D11, D12, D13, D14) and a controlled switch (SW1, SW2; SW11, SW12, SW13, SW14) of the unidirectional type, wherein the control switches of the meshes including a same winding are distinct.</p> |
