Circuit arrangement for commutating a reluctance motor

Abstract

A circuit arrangement is described for commutating a reluctance motor having a rotor (2) movable relative to a stator (1) and having a winding to which in specific positions of the rotor (2) relative to the stator (1) a current is applied by means of a switching device, and including a detection arrangement by which a voltage induced in the winding is detected and which enables the switching device when the induced voltage reaches a predetermined value. In a circuit arrangement of this type a simple, modular and thus universally usable structure is achieved in that the winding comprises at least three winding sections (110, 210, 310) arranged substantially equidistant along the motion coordinate (w) of the rotor (2) and winding sections that can individually admit current, so that from each winding section (110) the voltage (U1) induced therein is tapped and the enable signal (at 119) is derived when the predetermined value is reached, as a result of which signal the power supply to the preceding winding section (210) viewed in the direction of the motion coordinate (w) of the rotor (2) is terminated and initiated at a next winding section (310).

Dependencies are inferred from the claim text.