Electrodynamic braking device for a universal motor

An electrodynamic braking device for a universal motor having a field winding (2, 2′) and an armature (1), having a switching device (S1-S6, S8, 3, v, v′, v″) for switching from a motor mode to a braking mode, wherein the braking device is designed to supply the armature (1) and the field winding (2, 2′) with an alternating current of a power grid (50, 51) during the motor mode,

• wherein said braking device is designed to short circuit said armature (1) and to continue to supply said field winding (2, 2′) with an alternating current from the power grid (50, 51) during the braking mode,
• wherein said braking device is designed to supply said field winding (2, 2′) with a current having an A.C. voltage which has the frequency of said power grid in a first phase of said braking mode and
• wherein said braking device is designed to supply the field winding (2, 2′) with an alternating current from said power grid which has a frequency that is reduced with respect to the frequency of said power grid in a further phase of the braking mode.