Abstract: Asymmetric multi-pulse transformer rectifier unit (TRU), and associated systems and methods are described herein. In some embodiments, the transformer includes a 3-phase delta or wye primary coupled to a galvanically isolated 3-phase delta secondary with correction windings placed per the transformer schematic to provide a multi-pulse (e.g., 18-pulse or 24-pulse) asymmetric output. Such construction provides passive multiphase PTC and harmonic cancellation and allows multi pulse rectification. At the TRU level. 3-phase input power is provided to the transformer, which produces an isolated 9-phase or 12-phase output. The isolated multi-phase transformer output may be fed into a bridge rectifier, which converts AC to DC. DC output voltage may be determined by AC input voltage and transformer turns ratio.