Driving device comprising a transformer function, driving system and method for operating a driving device

A drive device with a converter function for a vehicle, characterized in that the drive device has the following features:

• a least one first motor connection and one second motor connection for connecting the drive device to a converter,
• at least one first motor coil and one second motor coil, wherein a first connection of the first motor coil is connected to the first motor connection and a first connection of the second motor coil is connected to the second motor connection;
• at least one first intermediate tap and one second intermediate tap, wherein the first intermediate tap is connected to a tap point of the first motor coil and the second intermediate tap is connected to a tap point of the second motor coil;
• and
• at least one first supply line connection and one second supply line connection for connecting the drive device to an AC voltage supply line, wherein the first supply line connection is connected to the first intermediate tap and the second supply line connection is connected to the second intermediate tap,
• wherein a first number of windings is located between the first connection of the first motor coil and the first intermediate tap and between the first connection of the second motor coil and the second intermediate tap, and
• wherein a second number of windings, differing from the first number of windings, is located between the second connection of the first motor coil and the first intermediate tap and between the second connection of the second motor coil and the second intermediate tap.