Patent ID: 8325501

Claim:
A 3-phase power converter comprising: a three-phase voltage source, an EMI-filter, capacitors C c1 -C c3 , boost inductors L a , L b and L c , autotransformers T a , T b and T c , a rectifier and bi-directional controllable switches, wherein the 3-phase power converter receives input power from the three-phase voltage source via the EMI-filter, the capacitors C c1 -C c3 are connected between the EMI-filter and the boost inductors, L a , L b , L c to a midpoint of the 3-phase power converter, the input power goes through first, second and third boost inductors L a , L b and L c and the autotransformers T a , T b and T c that are coupled to a rectifier, and the rectifier rectifies the three-phase input voltage into a DC voltage for application to the bi-directional controllable switches connected to the midpoint of the 3-phase power converter.