Arrangement having an oscillating motor and a method for controlling an oscillating motor

Abstract

The invention relates to an arrangement having an oscillating motor (100), a control circuit (20) for controlling the motor (100), a sensor arrangement (5) for determining an electric characteristic of the motor (100) at a predetermined measuring time (t1, t2, t3) or in a predetermined measuring position (xM1, xM2 xM3) during an oscillation process, and a processor (21) for determining a movement variable of the motor (100) by means of at least the electric characteristic and a constant inductivity value (Lconst) of the motor (100), wherein the control circuit (20) in the operating state controls the motor (100) as a function of the movement variable, and the measuring time (t1, t2, t3) or the measuring position (xM1, xM2 xM3) is predetermined such that the inductivity (L) of the motor (100) remains approximately constant at least in a given current interval (I1, I2), even with different currents (I) through the motor (100). By means of a favorable implementation, the non-linearity of the motor inductivity can be taken into consideration, which results in increased stability in the control of the oscillation amplitude.

Dependencies are inferred from the claim text.