Power supply assembly with an inverter for creating single phase alternating current

Power supply arrangement with inverter (3) generating single-phase AC current and transformer (4) having primary winding (41) and first secondary winding (421) and second secondary winding (422). The secondary windings (421, 422) have same number of turns and are arranged to be permeated by same magnetic flux during operation of transformer (4), so that identical voltages are tapped at secondary windings (421, 422) during operation of the transformer (4). A respective terminal of first secondary winding (421) and a respective terminal of second secondary winding (422) are connected to one another at first point (K1), that two-phase system whose phases are shifted by 180 DEG relative to each other is produced between first point (K1), additional terminal of first secondary winding (421) and additional terminal of second secondary winding 422). First point (K1) is connected to neutral conductor terminal (N) of output of power supply arrangement via capacitor.