Exciter assemblies

The invention claims a exciter device, a excitation current power supply superconducting synchronous motor rotor winding (16). The exciter device comprises a fixing the primary winding (7) and installed on the superconductive synchronous motor rotor is arranged on the secondary winding (10) pulse transformer is a pillar. Switching mode power supply and pulse providing a pulse primary winding is a voltage (7). By a semiconductor device (11) and a pair on the lead (14) is provided with a pulse voltage of the pulse transformer secondary winding (10) designed to the rotor winding. The rotor winding (16) and current semiconductor device (15) is located in the low greenhouse or a freezer. The current semiconductor device (15) and rotor winding (16) parallel, and is provided with a rectifier semiconductor device (11) is consistent operation to the synchronous rectification of switch mode output power. Switching mode power supply and primary and secondary winding (7,10) is positioned outside the freezer.