Our way to power electronic transformers

In article evolution of the researches executed to Scientific laboratory `Energy optimization of power convertors´ (EOPS) which can serve an innovative direction in the power electronics, connected with working out of power electronic transformers of an alternating current for needs electrical engineers and power is tracked. Three directions in construction of such transformers are considered: on converters with a direct connection, on converters with an intermediate link of the higher frequency and on converters with a DC intermediate link. The basic properties of converters of each direction are noted.