Cascaded multi-level Power converter

A multilevel power converter comprising:

• n input stages (Ein—n), n being at least equal to 1, each input stage having n+1 identical input converters (CONVx—En) that are connected to one another, each converter being supplied with an input voltage (Vx—En) and controlled to apply an electrical potential to an output (Sy—En) on the basis of said input voltage,
• if n is greater than or equal to 2, each input converter of the input stage of rank n−1 being supplied with the voltage resulting from the electrical potentials applied to two outputs by two converters of rank n,
• an output stage (Eout) connected to the input stage of rank 1 and having an output converter (CONVS) supplied with a differential voltage (Vfloat) resulting from a first electrical potential applied to the output of a first input converter of the input stage of rank 1 and from a second electrical potential applied to the output of a second input converter of the input stage of rank 1, said output converter being controlled to apply an electrical potential to an output (S1—S), characterized in that:
• the input converters (CONVx—En) exhibit an identical topology, chosen from among the architectures of NPC, ANPC, NPP and SMC type,
• the output converter (CONVS) exhibits a different topology than the topology chosen for the input converters, said topology of the output converter being chosen from among a flying capacitor (FC), SMC, NPC, NPP and ANPC architecture.