Patent ID: 11881799
Assignee: THE BRAUN CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  A | IPC A  H

Claim 0:
1. A motor unit comprising:
a motor having a stator and an armature, the armature being arranged for relative driven motion with respect to the stator; and
a motor control unit having a supply circuit for providing a supply voltage at the motor to provide a set power level to the motor for driving the armature into motion; and
a measurement circuit for measuring a value of a physical variable that is indicative of a current flow through the motor;
wherein the motor control unit is arranged to interrupt the provision of the supply voltage by the supply circuit and to dynamically brake the motor during a braking time interval and further to measure the value of the physical variable during the braking time interval;
wherein the motor control unit is further arranged to compare the measured value of the physical variable with a target value, which target value depends on the supplied power level and on an intended motion amplitude of the armature, to determine a new set power level in dependence on the comparison result and to subsequently provide the new set power level to the motor.