The invention relates to a drive circuit for an electric motor with aerodynamic bearing of the motor shaft, wherein the drive circuit comprises at least one storage means for storing electrical energy, through which the electric motor can be supplied with ...

The device (10) has a combinatorial circuit (30) connected to energy storage cells (C1-Cn) and a voltage measuring unit (40). Another combinatorial circuit (60) is connected to an energy storage element, the voltage measuring unit and the former combinator...

The power filter module has an input unit that receives reference load currents and phase voltages of three-phase supply network (1) corresponding to a non-linear load (2). A transformation unit transforms the load currents and phase voltages in alpha-beta...