| 摘要 |
<p>The problem concerns the improvement of a drive and positioning system with regard to its setting characteristics when used as a servo drive which is capable of latching, the said system comprising a rotor which is faced with permanent magnets, and a stator which possesses two or more sub-windings, these sub-windings being connected to an electronic powersupply circuit which is controlled in order to effect current commutation, control being accomplished by means of magnetic rotor-position sensors. The invention solves this problem by adopting a design wherein the stator is ironless, wherein its sub-windings (I, II), which are disc-shaped and lie in parallel planes, are arranged in a manner such that they overlap, generating a magnetic field which is enclosed by the sub-coils, this magnetic field lying essentially parallel to the one which is generated by the permanent magnets, and wherein the rotor-position sensors (7) are in each case integrated into both sub-windings (I, II). An advantageous electronic power-supply circuit is also specified, the purpose of which is to control the drive system, this circuit comprising first and second multiplier elements and, in addition, adder elements, these various elements being dedicated, one to another, in accordance with a prescribed scheme (Fig. 4).</p> |
