| 摘要 |
<p>The electric machine according to the invention comprises an iron-free rotor provided with two windings (1, 2) each of them being formed by a plurality of coil elements (11, 12, 13 and 21, 22, 23). The elements (11, 12, 13) of the first winding (1) are interconnected in series and the common connection points are connected to the segments of a segment collector (4). The ends of the elements (21, 22, 23) of the coils of the second winding (2) are each connected to a ring of a ring collector (5). This electric machine is part of an electric driving device wherein the first winding (1) is controlled from a direct current supply and control device (3) and the second winding is controlled by a multiphased supply and control device (6 to 9). The invention applies particularly to stepping drive devices and to a drive device based on a direct current motor assisted by a multiphased motor and/or combined with a multiphased generator.</p> |
