A voltage transforming apparatus includes a primary winding (3) receiving an AC voltage, a plurality of secondary windings (4a, 4b) that are different in number of turns, and a voltage conversion circuit (5) for converting an AC voltage induced in each of ...

The present invention discloses a device and a method for mains-side control of an intermediate circuit voltage in order to reduce or eliminate impermissible mains effects of harmonics of the mains voltage on the intermediate circuit. For this purpose, dur...